Prevalence of risky behaviors and relationship of risky behaviors with substance use among university students
Demet Havaceligi Atlam, Ebru Aldemir, A. Ender Altintoprak
Article No: 2   Article Type :  Research
Objective: This study aims to evaluate the prevalence of risky behaviors, frequently encountered in young adulthood, and the relationship between such behaviors and substance use in the university population.

Method: This cross sectional, web-based, self-report study was carried out in a state university with 53,003 students. The power analysis was conducted according to the lowest prevalence (0.01%-0.6%) of substance use in universities in Turkey. A sample of 3,184 people was found to be sufficient for the research. The data of 2,973 individuals who completed the Addiction Profile Index was evaluated. Frequency tests, Pearson chi-square and logistic regression were used in the statistical analysis.

Results: As participants 1,629 (54.8%) females and 1,344 (45.2%) males were included in the study. Suicidal plans or attempts and self-harming behaviors were significantly more prevalent among female students; carrying a weapon (penknife/knife/gun), engaging in physical fights, sustaining injuries in physical fights, early sexual relation experiences, condom usage, cigarette, alcohol, energy drink and substance consumption were significantly more prevalent among male students (p<0.001). Frequent suicidal plans or attempts (11.3 times) and early sexual experiences, before the age of 15 (16.6 times) were found to be riskier behaviors with regard to substance use; as the consumption of cigarettes, alcohol and energy drink increased, so did the risk of substance use.

Conclusion: Gender is a distinctive characteristic with regard to risky behaviors among young people. The relationship between risky behaviors and substance use suggests that one risky behavior may lead to another. As such, it is necessary to evaluate the substance use among young people with risky behaviors and to examine other risky behaviors which accompany the substance use problems.
Keywords : Risk-taking, substance abuse, university students
Dusunen Adam : The Journal of Psychiatry and Neurological Sciences : 2017;30:287-298
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Youth, in addition to being a time in which difficulties stemming from social and personal transformation are experienced, carries significance as a period in which individuals experience identity development (1). According to Dryfoods (1990), self-awareness, forming one’s own personal values, problem-solving, decision-making, and gaining one’s own emotional independence can become sources of stress during this time, giving way to a tendency for risky behaviors (1). According to the World Health Organization, reproductive health problems, substance abuse, eating disorders, psychological problems, and risky behaviors are frequently experienced during this time of life (2,3).

Risky behaviors, the source of which is mostly attributed to the characteristics of adolescence, carry attributes that may pose a problem during other periods of one’s life, preventing individuals from becoming responsible adults (4,5). Such behaviors are defined by Jessor (1998) as harmful behaviors that may lead to undesired social or developmental results and may be harmful to one’s health, even posing threats to one’s life (1); these include sensation-seeking behaviors that require physical courage or actions that bring about a violation of rules, in some cases even leading to death (5,6).

Risky behaviors can be divided into four different groups under the headings of traffic, sexuality, substance use, and sports (6). Committing crimes, smoking cigarettes, alcohol or substance consumption, energy drink consumption and self-harming behavior, attempting suicide, risky driving (driving under the influence of alcohol, without a safety belt, speeding, driving without a license), early sexual experiences, unprotected gender, running away from home or school, dropping out of school, disinterest in classes, unhealthy eating patterns, dieting and a physically inactive life can be considered as risky behaviors (1,4,7-9). Self-harming behaviors, which are generally seen throughout the world between the ages of 13-19, and in our country between the ages of 16-20, are described as destructive behaviors without the intention of ending one’s life, seeking to escape negative feelings or deal with emotional stress factors (10-12). Studies conducted on both self-harming behavior and suicide show that youths in particular are in a high-risk group (13).

The fact that the highest incidence of emergency room admission due to suicide attempts in our country is found in the age group 16-24 is an important piece of information (13-15). Researches on risky behavior, finding has showed that while women experience higher rates of self-harming behavior and suicide attempts, men more frequently become engaged in substance use, violence, early sexual activity, and suicide (4,13,16-20). Studies conducted with university sample groups focus more specifically on risky sexual behavior, particularly sexual activities without the use of condoms (21-24). In addition to unprotected gender, sexual experiences with a high number of partners, gender in exchange for money, as well as the use of illegal substances during or before sexual activities are all considered as risky sexual behavior (24-27).

The influence of friends remains a key factor in health-related risky behavior, which include the consumption of substances such as cigarettes, alcohol and energy drinks. These substances can be suggested by an individual’s circle of friends and their use by peers may lead to consumption due to the desire to feel as a member of that group or due to peer pressure (28,29). Particularly cigarettes and alcohol that are tried during adolescence can lead to a transitional consumption of marijuana and other substances in later years, increasing a tendency towards the use of illegal substances (29). It is here that the university years play an influential role as a time during which different experiences with substances may occur. The consumption of energy drinks, which are popular among young people, pose a risk in terms of excessive alcohol and substance consumption (7,30) as they cause an increased release of dopamine, serotonin, noradrenaline and adrenaline, in addition to their prolonging the effects of these chemicals (31).

It is established that risky behavior may accumulate in individuals and that a youth with one risky behavior then has a tendency for other risky behaviors (4). According to research that supports this relationship, there is a link between illegal substance use and health-related risky behaviors, risky sexual behaviors (32-34), risky driving (35), risky financial behaviors and gambling (36-38), engaging in fights and sustaining injuries, and carrying sharp and piercing weapons (39-41).

In recent years, there has been a rise among university students in engaging in risky behavior and substance use. This study aims to assess the prevalence of risky behaviors among university students and evaluate the relationship between risky behaviors and substance use. The basic hypothesis of this study is that there is a relationship between substance use and the following risk-taking behaviors: suicide attempts, self-harming behaviors, carrying sharp and piercing weapons, fighting and sustaining injuries as a result of fighting, engaging in early sexual experiences and unprotected gender.


Power analysis was utilized in the calculation of the sample size. In the scope of this study, calculations were made based on the prevalence of illegal substances (0.01%-0.6%), which are in the focus of this study; power analysis was utilized with substances with the lowest prevalence of use (heroin, cocaine, ecstasy, volatile substances etc.) according to studies conducted in universities in Turkey (9,42). Accordingly, a sample size of 3,184 individuals with a deviance of ±0.03 and a 95% confidence interval for a setting in a university with 53,003 students was found sufficient. A total of 4,307 individuals aged between 17 and 35 years participated in a year-long survey. As a reliability question, a non-existent substance dubbed “relaktin” was included. The 325 participants who answered “yes” to the use of “relaktin” were removed from the assessment and a sample of 3,982 remained. The findings of 2,973 individuals who completed all of the questions were included in the final assessment.


The demographic data form includes gender, age, school, academic success, family and cohabitant information of the participant, and financial status of the individuals included in the study.

Addiction Profile Index - short form (API –short): The Addiction Profile Index (API) short form, which was prepared by Ogel et al. (43), features risky behavior such as the consumption of cigarettes, alcohol, and substance use frequency, early sexual activity, suicide attempts, physical fighting, sustaining injuries as a result of fighting, gashing one’s body and other forms of self-harm, carrying a knife, a gun, or similar weapons, an unhealthy lifestyle and unhealthy internet usage, as well as questions based on psychological evaluations such as depression, anger, anxiety, impulsivity and sensation-seeking. The Cronbach alpha co-efficient of the scale is 0.89. The item-total score correlation coefficients have been determined to be between 0.49 and 0.70. Two factors have been obtained in the explanatory factor analysis, explaining 60.3% of the total variance. Addiction diagnosis scales and questions pertaining to strong desire have been gathered under the first factor, while influence on life and motivation have been gathered under the other factor. The correlation co-efficient between BAPI-short and BAPI has been found to be 0.96, while this figure was 0.82 for AUDIT and 0.76 for CAGE. All correlations were statistically significant at the level of plt;0.05.


The study was approved by the Ethics Committee (Decision no. 2037). The survey was entered into the university database and was administered as a web-based study. All units were sent a formal notification in writing prior to the study, posters were placed on campus to encourage participation, and the survey was announced on the websites and social media pages of the university and its organizations. The survey, which was conducted online, was based on voluntary participation. First names, last names, student numbers and similar personal information were not gathered from students. The survey was prepared so that one could not proceed with the questions before completing the previous question; however, participants could withdraw from filling in the questionnaire at any point they desired.

Statistical Analysis

The analysis utilized frequency, the Pearson chi-square and regression tests. Pearson chi-Square test was used in order to evaluate the categorical data and determine the difference between groups. At the analysis stage, sets of four or five Likert-type scale answers were transformed into two or three sets in order to help with the assessment. All substances (tranquilizing medication, hallucinogens, ecstasy, heroin, cocaine, narcotic drugs, and volatile substances) which were inquired about from students in this study were combined and evaluated together as “substance experience.” The logistic regression test was used in evaluating the effect of independent variables on the dependent variable, which was substance use. The binary logistic regression analysis was used with the enter method in order to obtain the distinctive effect of each risky behavior in substance use. The statistical significance level of the study was chosen as plt;0.05.


Sociodemographic Results

Of the participants in the study, whose average age was 21.8±2.9 (min: 17, max: 35), 1,629 were women (54.8%) and 1,344 were men (45.2%). While 78.8% (n=2,343) of the participants represented faculties, 6.1% (n=181) represented colleges, 8.9% (n=264) vocational colleges and 6.2% (n=185) represented postgraduate institutes. Of the students, 15% (n=445) were in their preparation year, 25.9% (n=770) in their first year, 20.3% (n=604) in their second year, 13.9% (n=413) in their third year, 13.5% (n=402) in their fourth, fifth and sixth years and 8.8% (n=262) were pursuing a graduate degree or doctoral thesis. Among the participants, 84% noted that their mother and father were still together; 9.9% indicated that their parents were divorced and 6.1% said that they had lost at least one parent. Of the participants, 39.2% lived with their families; 2.2% with a relative; 34.5% alone in a home, with their friends or their significant other; 22% indicated that they were staying in a dormitory while 2% said they had an alternate living arrangement.

The Prevalence of Risky Behaviors

When risky behaviors were assessed based on gender, women were found to experience higher rates of planning and attempting suicide (χ2=18.335; plt;0.001) as well as self-harming behavior (χ2=15.887; plt;0.001) while men experienced significantly higher rates of carrying knives, penknives, weapons and sharp, piercing objects (χ2=37.993; plt;0.001), in addition to involvement in a physical fight within the last year (χ2=85.706; plt;0.001); having sustained an injury as a result of fighting (χ2=35.594; plt;0.001) and early age sexual experiences (χ2=374.746; plt;0.001). While there was a relationship determined between protection methods during sexual activities and the gender factor (χ2=74.070; plt;0.001); condom use was reported more frequently by men, while birth control pills and coitus interruptus were cited by women as the most popular forms of protection (Table 1).

The lifetime use of the following at least one time was found among the students: cigarettes 54.3%, alcohol 62.4%, energy drinks 31.9% and a substance (any kind of sedative medication that is not prescribed, marijuana, ecstasy, heroin, cocaine, narcotic medication, volatile substances) 27.2%. Consumption was categorized by frequency between 1-5 times (19.6%, n=584), and more than five times (7.6%, n=225).

There were significant differences found between the gender regarding the frequency of cigarettes (χ2=106.410; plt;0.001), alcohol (χ2=116.593; plt;0.001), energy drinks (χ2=147.024; plt;0.001) and substance use (χ2=69.589; plt;0.001) (Table 1).

The Relationship Between Risky Behaviors

and Substance Use

The study examines the prevalence of risky behaviors and the effects of the frequency of risky behaviors on substance use. The assessment was conducted in groups who never use substances (n=2164) and those who consume substances (those who have used substances more than five times) (n=225). Logistic regression analysis was used for the effect of each risky behavior on substance use. It can be seen that the frequent attempt or planning of suicide, self-harming behavior, carrying sharp or piercing objects, having been involved in a physical fight in the last one year or having received an injury in a fight all correlate to an increased risk of substance use (Table 2). In sexual experience, having experiences prior to the age of 15, within the 15-18 age range and after the age of 18; in the case of sexual activities, the technique of coitus interruptus (an ineffective protection method), the use of condoms or the birth control pill (effective protection methods) and using no form of protection during sexual relations correlate to an increased risk of substance use as compared to those who have no sexual experience. As the frequency of consuming cigarettes, alcohol and energy drinks increase, so does the use of substances (Table 2).

According to Table 2, the use of substances is over eight times higher in those who frequently plan suicide, have sexual experiences prior to the age of 18, use the coitus interruptus method during sexual relations, smoke every day, consume alcohol every day or 1-5 times a week, and consume an energy drink 1-7 times a week.


Our findings demonstrate that suicide attempts, the carrying of sharp and piercing objects, the consumption of cigarettes, alcohol and substances, as well as unprotected gender are more prevalent in university students in Izmir, compared to other studies conducted in Turkey, and that there is a relationship between risky behavior and substance use.

The Prevalence of Risky Behavior

Our study found that the incidence of planning and attempting suicide (24.8%) in university students is higher than the findings of other studies conducted in Turkey (suicide thoughts 11.4%-42%, suicide attempts 5.5%-7%) (13,44,45). In studies conducted in other countries, the prevalence of thoughts of suicide were found to be 24%, suicide attempts varied between 5 and 18% (11,46-49). Regardless of the fact that our findings show a higher prevalence than at other universities in Turkey, we hold that the thought, planning, or attempt of suicide are different terms, and our inclusion of the two different terms of suicide planning and suicide attempt in the same question may have affected the results. The finding of a prevalence of self-harming behavior (15.4%) to be at the same percentage as in a different study conducted in 2011 demonstrates that a consistent result has been attained (45). In studies conducted in different countries, we see that self-harming behavior is generally more prevalent and reaching higher numbers particularly in the United States (69%), Canada (41%), Australia (47%), and Indonesia (32.7%), while this rate is lower in European countries such as England (14%), Italy (21%), and Germany (6%) (11,49). The difference in these countries may be due to legal regulations, socio-cultural infrastructure, social acceptance based on self-destructive harm, and differences in religious beliefs. Our finding of high rates of suicide attempts and self-harming behavior among women is consistent with the approach of cultural differences and many studies (49-53); however, there are some studies which indicate that there is no difference regarding gender in this matter (13,45). The gender-based differences found in the literature may be due to the respective research methods being utilized. The reason for the findings of higher rates of attempted suicides in women and successful suicides in men may have to do with the preferred methods of suicide. While women generally take pills, men opt for fire weapons in trying to take their own lives, choices affecting the outcome of suicide attempts (53).

The fact that our study found the rate of university students carrying knives, penknives, guns and similar sharp and piercing weapons (13.7%) to be higher than in other studies in the university population of Turkey (7.9%-11.1%), shows that such behavior is on the rise among students (54,55). Our finding that the rate of injuries sustained as a result of carrying a piercing or sharp weapon and involvement in a fight is higher among men in comparison to women (40,54,56,57) may be explained by social gender roles imposed on men, expecting them to be brave, strong, and to become warriors.

While in Turkey sexual experiences increase during university years, we see that there is an absence of sufficient information regarding sexual protection methods and sexually transmitted diseases (STDs) among university students (58,59). This situation brings about a youth that is more active in sexual life, while not using effective forms of protection, thus creating risky situations. Our study has found the prevalence of unprotected gender (where no form of protection is used, including coitus interruptus) to be 34.4%. This rate is higher compared to the findings of other studies in Turkey (18.9%-27.4%) and similar to findings of studies abroad (34%-48%) (21-24,26,58-60). This finding is an important result which needs to be examined. The lack of information on methods of protection, inadequate experience and the lack of a correct attitude towards sexuality all increase the risk of facing early pregnancy, HIV, and STDs. Because half of the HIV patients and one third of STD cases are youths below the age of 25, university students comprise an important population that needs to be kept under surveillance to this end (61). An important sexually risky behavior is sexual experience at a young age. It is believed that the difference found in sexual experience before the age of 15 in our study (1.5%) and the findings of a study conducted abroad (40.6%) is caused by our country’s cultural values and our perception of sexual experience (62). Turkey’s perception of sexuality as a taboo and the fact that this topic is, for the most part, not discussed and rather ignored, in addition to the importance placed on virginity, social and familial pressure regarding sexuality, the fear of becoming pregnant or impregnating, STDs and religious beliefs are all causes leading to the avoidance of sexual activities at a young age (58,63).

The finding in our study that life-long cigarette and alcohol consumption among Izmir university students is higher than that reported in other studies (cigarette consumption 29.1%-43.3%, alcohol consumption 47.9%-55.6%) conducted on Izmir’s university students points to the need for an increase in preventative measures for this matter (64-66). Additionally, even though the finding of lower rates of energy drink consumption (31.9%) in our study compared to other studies in Turkey (55.0%-59.9%) and abroad (65%-68%) may appear to be a positive outcome, this does not mean that there is no problem regarding the consumption of such drinks (30,67-69). Another study completed in Turkey points out that despite the rate of energy drink consumption being 55%, the percentage of persons with inadequate knowledge about energy drinks is 73%, highlighting unawareness in the uninformed consumption of this product (67). The probability of the threat that may be posed by uninformed consumption in the future needs to be considered. It is expected that the consumption of energy drinks among youths will continue to increase, with the marketing strategy for these beverages targeting young people, physical endurance, sexual bravery, and extreme sports (69,70).

The rates of substance use in Turkey among university students have been found in the range of 6.0%-8.6% between 1990-2003 (71-74), 3.0%-9.2% (42,55,75,76) between 2004-2009, and 4.7%-13.6% between 2010-2015, demonstrating that consumption is on the rise with each passing year (3,65,68,77,78). In addition to this, our study reveals that substance use affects a high percentage of people. This difference may have to do with variance in research methods, the difference in scales that assess the prevalence of substance use, and the fact that for the purposes of our study, sedatives which are used without a prescription and which may lead to a substance use problem were also evaluated under the category of “substance use.” Furthermore, the 2013 report of the Turkish Monitoring Center for Drugs and Drug Addiction (TUBIM), which includes a statistical finding that the regions of Marmara and Aegean have the highest prevalence in marijuana-related incidents, with a total of 33,500 drug users being reported for Izmir according to data for 2011, seems to confirm this situation (79). Our study found that the consumption of cigarettes, alcohol, energy drinks, and substances is significantly more prevalent among men than among women, which is consistent with other studies in the literature pertaining to the gender role in this matter (3,5,39,66,77,80,81). Additionally, our study found that the trial of substances was similar in men and women (consumption of 1-5 times), but a difference was found in the continued consumption (more than five times). This finding, in addition to the demonstrated fact that men are at a higher risk regarding the regular consumption of substances, points to an increasing interest in and experience with substance use by women.

Relationship Between Risky Behavior and

Substance Use

The finding in our study of an increased risk of substance use among people with frequent plans or attempts of suicide, or those with self-harming behavior, appears to demonstrate the relationship between self-harming behavior and substance use. It is frequently noted that the use of drugs and substances plays a causal role in thoughts and attempts of suicide (82) and that psychological illnesses and substance use are at the core of self-harming behavior (12,83,84). Our study demonstrates that there is a higher risk of substance use among those who engage in physical fights and carry piercing or sharp weapons. In studies completed in the United States, results were found to demonstrate a strong relationship between carrying a gun on campus and substance use, as well as substance sales and substance-related crimes (40,57). An early start of violence and crime may indicate a risk of substance use in later years. Our study shows that early sexual experience increases the risk of substance use by 16.6 times and that among those whose sexual activity begins at an earlier age, substance abuse climbs to a high rate of 37.9%. This confirms the relationship between risky sexual behavior and substance use. It has been pointed out that in addition to the relationship between substance use and risky sexual behavior (60,85,86), substance or alcohol consumption prior to or during sexual behavior is assessed as risky sexual behavior, and an experience based on this may lead to unprotected sex (24,26). Opinions have been formulated on the increasing prevalence of marijuana consumption in Africa and how this is tied to risky sexual behavior (32).

Our research has determined that as the consumption of cigarettes, alcohol, and energy drinks increases, so does the risk for substance use. Research indicates that regular smoking of cigarettes and risky (excessive) consumption of alcohol form a risk with regard to the use of addictive substances and may even lead to the consumption of multiple substances (42,87,88). In addition, there is a study finding a higher consumption rate of cigarettes, alcohol, marijuana, and amphetamines among consumers of energy drinks (7).

In the end, risky behavior such as suicide attempts, carrying piercing and sharp objects, consuming cigarettes, alcohol, substance use, and unprotected sexual activity are all increasing with each passing year among university students in Turkey. In some risk-taking behavior, the gender factor continues to maintain its differentiating role. It is evident that self-harming behavior and suicide attempts in particular are more prevalent among women. One important finding is that as the frequency of risky behavior increases, so does the risk of substance trial and use. The noticeably higher rates of substance use among persons who frequently plan suicide, experience sexual relations before the age of 18, have unprotected sex, consume cigarettes every day, and consume alcohol 1-7 time week, as well as those who consume energy drinks demonstrates that there is an increased risk of substance use among those who are engaged in such behavior. The relationship between risky behavior and substance use confirms the idea that a person who engages in one type of risky behavior may be prone to other ones. As such, it is very important to question substance use in youths who engage in risky behavior and inversely the risky behavior among those who seek aid with a problem pertaining to substance use.

One of the strongest aspects of the study is its well-planned research method. The setting of the study was kept wide, including students from pre-bachelor, bachelor, and post-bachelor programs from all units, including faculties, the postgraduate institute, colleges, and vocational colleges making up the university in central Izmir and surrounding towns in the remit of the study. The online administration of the study worked to increase participation. As it was thought that the virtual world would be perceived as more anonymous by young people, even those who do not actively attend classes were reached out to. Additionally, a question pertaining to a non-existent substance named “relaktin” was used as a reliability question, leading to the removal of 325 people who noted they had tried this substance, thereby increasing the reliability of the study and allowing for more accurate findings. Furthermore, a system that did not allow for questions to be skipped was implemented, thereby preventing the loss of data.

One of the limitations of this study was the lack of detailed information obtained on risky behavior. It was thought that asking and evaluating the age at which each risky behavior began would eliminate the uncertainty regarding the two-way relationship between risky behavior and substance use. Furthermore, conducting a cohort-type research on determining the direction of this relationship will increase the strength of similar studies. Another restriction was the use of self-assessment-based data for analysis. It is believed that this may have led to an insufficient evaluation due to incomplete statements. Additionally, our sample is composed of the students of only one university in Izmir. The inclusion of different universities in different regions will increase the study’s generalizability for the whole of Turkey.

Acknowledgement: We would like to thank Professor Kultegin Ogel for his contributions to the research idea and method in the context of the Genciz Project.

Conflict of Interest: Authors declared no conflict of interest.

Financial Disclosure: Authors declared no financial support.


1.Genctanirim D. University form of risk behavaiors scale: vadility and reability studies. Journal of Measurement and Evaluation in Education and Psychology 2014; 5:24-34. (Turkish) [CrossRef]

2.Simsek Z, Koruk I, Altındag A. Health risk behaviors of first year students of Harran University Medical Faculty and Faculty of Science and Letters. Bulletin of Community Medicine 2007; 26:19-24. (Turkish)

3.Turhan E, Inandi T, Ozer C, Akoglu S. Substance use, violence among university students and their some psychological characteristics. Turkish Journal of Public Health 2011; 9:33-44. (Turkish) [CrossRef]

4.Aras S, Gunay T, Ozan S, Orcin E. Risky behaviors among high school students in Izmir. Anatolian Journal of Psychiatry 2007; 8:186-196. (Turkish)

5.Firat S, Yoldascan E, Cot DA, Daglioglu N, Gulmen MK. Risk Taking Behavior Amoung College Students and Factors Affecting this Behavior. The Bulletin of Legal Medicine 2016; 21:172-176. (Turkish) [CrossRef]

6.Arikan G, Tacoglu T, Erdogan S. Comparison of university students in Ankara, Toronto, and Prishtina regarding their risk-taking behavior. Bilig 2011; 56:1-24. (Turkish)

7.Buchanan J, Ickes M. Energy drink consumption and its relationship to risky behavior in college students. Calif J Health Promot 2015; 13:38-48.

8.Kara B, Hatun S, Aydogan M, Babaoglu K, Gokalp AS. Evaluation of the health risk behaviors of high school students in Kocaeli. Cocuk Sagligi Hastaliklari Dergisi 2003; 46:30-37. (Turkish)

9.Ilhan T. Life goals and substance use among university students. Usak University Journal of Social Sciences 2013; 6:183-196. (Turkish)

10.Sansone RA, Sansone LA. Measuring self-harm behavior with the self-harm inventory. Psychiatry (Edgmont) 2010; 7:16-20.

11.Walt FVD. Self-harming behaviour among university students: A South African case study. J Psychol Afr 2016; 26:508-512.

12.Akdemir D, Zeki A, Unal DY, Kara M, Cetin FC. Identity status and self-esteem in adolescents with non-suicidal self-injurious behavior. Anatolian Journal of Psychiatry 2013; 14:69-76. (Turkish) [CrossRef]

13.Gurkan B, Dirik G. Predictors of suicide behavior and ideation in university students: reasons for living and ways of coping. Turkish Journal of Psychology 2009; 12:58-69.

14.Evren H. The health-related risky behaviour and use of health services in Trakya University students. A masters thesis, Trakya University Health Sciences Institute Public Health Department, Edirne, 2008. (Turkish)

15.Yigit O, Soyuncu S, Berk Y. Who are the suicide attempters A view from an Emergency Department. New Symposium 2010; 48:122-128. (Turkish)

16.Aldrich RS. Suicide prevention: college students’ intention to intervene. Arch Suicide Res 2017; 21:403-412. [CrossRef]

17.Welch SS. A review of the literature on the epidemiology of parasuicide in the general population. Psychiatr Serv 2001; 52:368-375. [CrossRef]

18.Kaplan HI, Sadock BJ. Kaplan and Sadock’s synopsis of psychiatry: behavioral sciences/clinical psychiatry, 8th ed. Baltimore: Lipponcott Williams and Wilkins Co., 1998.

19.Hunt J, Eisenberg D. Mental health problems and help-seeking behavior among college students. J Adolesc Health 2010; 46:3-10. [CrossRef]

20.Oksuz EE, Bilge F. Examining the suicide probability among university students. Education and Science 2014; 39:407-420.

21.Sun X, Liu X, Shi Y, Wang Y, Wang P, Chang C. Determinants of risky sexual behavior and condom use among college students in China. AIDS Care 2013; 25:775-783. [CrossRef]

22.Huang J, Bova C, Fennie KP, Rogers A, Williams AB. Knowledge, attitudes, behaviors, and perceptions of risk related to HIV/AIDS among Chinese university students in Hunan, China. AIDS Patient Care STDS 2005; 19:769-777. [CrossRef]

23.Tilahun D, Assefa T, Belachew T. Knowledge, attitude and practice of emergency contraceptives among Adama University female students. Ethiop J Health Sci 2010; 20:195-202.

24.Mavhandu-Mudzusi AH, Asgedom TT. The prevalence of risky sexual behaviours amongst undergraduate students in Jigjiga University, Ethiopia. Health SA Gesondheid 2016; 21:179-186. [CrossRef]

25.Kann L, Kinchen S, Shanklin SL, Flint KH, Hawkins J, Harris WA, Lowry R, Olsen EO, McManus T, Chyen D, Whittle L, Taylor E, Demissie Z, Brener N, Thornton J, Moore J, Zaza S; Centers for Disease Control and Prevention (CDC). Youth risk behaviour surveillance- United States, 2013. MMWR Suppl 2014; 63:1-168.

26.Born KM, Wolvaardt L, Mcintosh E. Risky sexual behaviour of university students: perceptions and the effect of a sex education tool. Afr J Phys Health Educ Recreat Dance 2015; 21:502-518.

27.Ellis WL. Risky sexual behaviors among sexually active first-year students matriculating at a historically Black college: is a positive self-image an instigator Soc Work Health Care 2016; 55:125-143. [CrossRef]

28.Yuncu Z, Aydin C. Etiology of alcohol and substance use disorders. In Evren C, Ogel K, Ulug B (editors). Handbook for diagnosis and treatment of alcohol and substance addicton. Turkish Association for Psychiatry. Ankara: Tuna Matbaasi., 2012, 19-33. (Turkish)

29.Sungu H. The attitudes of university students on substance Use. Mustafa Kemal University Journal of Social Sciences Institute 2014; 11:167-194. (Turkish)

30.Arria AM, Caldeira KM, Kasperski SJ, Vincent KB, Griffiths RR, O’Grady KE. Energy drink consumption and increased risk for alcohol dependence. Alcohol Clin Exp Res 2011; 35:365-375. [CrossRef]

31.Dikici S, Aydin LY, Kutlucan A, Ercan N. What do we know about energy drinks Dicle Medical Journal 2012; 39:609-613. (Turkish) [CrossRef]

32.Calderia KM, Arria AM, O’Grady KE, Zarate Em, Vincent KB, Wish ED. Prospective associations between alcohol and drug consumption and risky sex among female college students. J Alcohol Drug Educ 2009; 53:nihpa115858.

33.Jere DL, Norr KF, Bell CC, Corte C, Dancy BL, Kaponda CP, Levy JA. Substance use and risky sexual behaviors among young men working at a rural roadside market in Malawi. J Assoc Nurses AIDS Care 2017; 28:250-265. [CrossRef]

34.Bisika T, Konyani S, Chamangwana I, Khanyizira G. An epidemiologic study of drug abuse and HIV and AIDS in Malawi. Afr J Drug Alcohol Stud 2008; 7:81-87.

35.Li K, Simons-Morton BG, Hingson R. Impaired-driving prevalence among US high school students: associations with substance use and risky driving behaviors. Am J Public Health 2013; 103:71-77. [CrossRef]

36.Shead NW, Derevensky JL, Fong TW, Gupta R. Characteristics of internet gamblers among a sample of students at a large, public university in Southwestern United States. J Coll Stud Dev 2012; 53:133-148. [CrossRef]

37.Boyd CJ, Young A, Grey M, McCabe SE. Adolescents’ nonmedical use of prescription medications and other problem behaviors. J Adolesc Health 2009; 45:543-550. [CrossRef]

38.Reid AM, Graziano PA, Balkhi AM, McNamara JP, Cottler LB, Meneses E, Geffken GR. Frequent nonprescription stimulant use and risky behaviors in college students: the role of effortful control. J Am Coll Health 2015; 63:23-30. [CrossRef]

39.Erdem G, Eke CY, Ogel K, Taner S. Peer characteristics and substance use among high school students. Journal of Dependence 2006; 7:111-116. (Turkish)

40.Vaughn MG, Nelson EJ, Salas-Wright CP, DeLisi M, Qian Z. Handgun carrying among White youth increasing in the United States: new evidence from the National Survey on drug use and health 2002–2013. Prev Med 2016; 88:127-133. [CrossRef]

41.Walter G, Dunn MS, Anderson P, Florkowski D. Students’ drinking status and likelihood of carrying a weapon on campus. Am J Health Stud 2015; 30:151-158.

42.Yalcin M, Essizoglu A, Akkoc H, Yasan A, Gurgen F. Risk factors associated with substance use among Dicle University Students. Turkish Journal of Clinical Psychiatry 2009; 12:125-133. (Turkish)

43.Ogel K, Evren C, Karadag F, Gurol TD. The Development, Validity, and Reliability of the Addiction Profile Index (API). Turk Psikiyatri Derg 2012; 23:264-273. (Turkish)

44.Eskin M, Kaynak-Demir H, Demir S. Same-sex sexual orientation, childhood sexual abuse, and suicidal behavior in university students in Turkey. Arch Sex Behav 2005; 34:185-195. [CrossRef]

45.Toprak S, Cetin I, Guven T, Can G, Demircan C. Self-harm, suicidal ideation and suicide attempts among college students. Psychiatry Res 2011; 187:140-144. [CrossRef]

46.Ellis JB, Lamis DA. Adaptive characteristics and suicidal behavior: a gender comparison of young adults. Death Stud 2007; 31:845-854. [CrossRef]

47.Westefeld JS, Homaifar B, Spotts J, Furr S, Range L, Werth JL. Perceptions concerning college student suicide: data from four universities. Suicide Life Threat Behav 2005; 35:640-645. [CrossRef]

48.Garlow SJ, Rosenberg J, Moore JD, Haas AP, Koestner B, Hendin H, Nemeroff CB. Depression, desperation, and suicidal ideation in college students: results from the American Foundation for Suicide Prevention College Screening Project at Emory University. Depress Anxiety 2008; 25:482-488. [CrossRef]

49.Swannell SV, Martin GE, Page A, Hasking P, St John NJ. Prevalence of nonsuicidal self-injury in nonclinical samples: systematic review, meta-analysis and meta-regression. Suicide Life Threat Behav 2014; 44:273-303. [CrossRef]

50.Okman T. The methods, system and scope of the suicide statictics in Turkey. Kriz Dergisi 1997; 5:43-58. (Turkish)

51.Devrimci-Ozguven H, Sayil I. Suicide attempts in Turkey: results of the WHO-EURO multicentre study on suicidal behavior. Can J Psychiatry 2003; 48:324-329. [CrossRef]

52.Sevik AE, Ozcan H, Uysal E. Analyzing suicide attempts: risk factors and follow up. Turk Psikiyatri Derg 2012; 15:218-225.

53.Harmanci P. An sociodemographic assessment of suicide attempts in Turkey and the World. Hacettepe University Faculty of Health Sciences Journal 2015; 2(Suppl.):1-15. (Turkish)

54.Erel O, Golge ZB. The relationship between risky behaviors and childhood abuse, impulsivity and risky behaviors in university students. Anatolian Journal of Psychiatry 2015; 16:189-197. (Turkish) [CrossRef]

55.Camur D, Uner S, Cilingiroglu N, Ozcebe H. Risk taking behaviors of students from different faculties in a university. Toplum Hekimligi Bulteni 2007; 26:32-38. (Turkish)

56.Ogel K. Epidemiology of substance use disorders. Turkiye Klinikleri Journal of Internal Medical Sciences 2005; 47:61-64. (Turkish)

57.Vaughn MG, Salas-Wright CP, DeLisi M, Maynard BR. Violence and externalizing behavior among youth in the United States: is there a severe 5% Youth Violence Juv Justice 2014; 12:3-21. [CrossRef]

58.Ersay AR, Tortumluoglu G. Reproductive health of adolescents and young adults. Journal of Human Sciences 2006; 3:1-13. (Turkish)

59.Siyez DM, Siyez E. Evaluation of the knowledge levels of university students about sexually transmitted diseases. Turkish Journal of Urology 2009; 35:49-55. (Turkish)

60.Noubiap JJ, Nansseu JR, Ndoula ST, Wang B, Jingi AM, Bigna JJ, Aminde LN, Youmbi RA, Fokom-Domgue J. Prevalence and correlates of HIV risky sexual behaviors among students attending the Medical and Social Welfare Center of the University of Maroua, Cameroon. BMC Res Notes 2015; 8:635. [CrossRef]

61.Duyan V, Unal F, Cok F, Unal S. Educating families and youth on sexually transmitted diseases. Turkish Journal of HIV/AIDS 2001; 4:11-16. (Turkish)

62.Seme A, Wirtu D. Premarital sexual practice among school adolescents in Nekemte Town, East Wollega. Ethiop J Health Dev 2008; 22:167-173.

63.Evcili F, Cesur B, Altun A, Guctas Z, Sumer H. The premarital sexual experience: opinions and attitudes of students from midwifery department. Gumushane University Journal of Health Sciences 2013; 2:486-498. (Turkish)

64.Akvardar Y, Aslan B. Ekici B, Ogun E, Simsek T. The prevalence of cigarette smoking, alcohol and drug use among second [year] medical students in Dokuz Eylul University. Journal of Dependence 2001; 2:49-52. (Turkish)

65.Havaceligi D. The effect of relationship dependency in couples and its relationship with parental bonding styles and substance use. A masters thesis, Ege University Health Sciences Institute Substance Abuse Department, Izmir, 2003. (Turkish)

66.Karacam O, Totan T. Investigation to the use of the addictive substances among the students of Ege University via multidimensional scaling. Anatolian Journal of Psychiatry 2014; 15:116-123. (Turkish) [CrossRef]

67.Kayapinar FC, Ozdemir I. A vocational college example in the research of energy drink habits and awareness among students. Ankara Saglik Hizmetleri Dergisi 2016; 15:1-12. (Turkish)

68.Bahadirli NB. The effect of energy drink consumption on alcohol-substance use in university students and its relationship with impulsivity. Medical specialist thesis, Trakya University, Faculty of Medicine, Department of Mental Health and Psychiatry, Edirne, 2013. (Turkish)

69.O’Brien MC, Mccoy TP, Rhodes SD, Wagoner A, Wolfson M. Caffeinated cocktails: energy drink consumption, high-risk drinking, and alcohol-related consequences among college students. Acad Emerg Med 2008; 15:453-460. [CrossRef]

70.Reissig CJ, Strain EC, Griffiths RR. Caffeinated energy drinks-a grownig problem. Drug Alcohol Depend 2009; 99:1-10. [CrossRef]

71.Eksi A. Children, youth, mothers and fathers. Ankara: Bilgi Yayinevi, 1990. (Turkish)

72.Yuksel N, Dereboy C, Cifter I. Substance use among university students. Turk Psikiyatri Derg 1994; 5:283-286. (Turkish)

73.Ogel K, Tamar D, Cakmak D. An overvieu of Turkey Situation in substance abuse problem. Turk Psikiyatri Derg 1998; 9:301-307. (Turkish)

74.Akvardar Y, Demiral Y, Ergor G, Ergor A, Bilici M, Akil O. Substance use in a sample of Turkish medical students. Drug Alcohol Depend 2003; 72:117-121. [CrossRef]

75.Taner S. Prevalence of tobacco, alcohol and substance use among undergraduate Bosphorus University students and exploration of specified risk factors. Unpublished Master Thesis, Bosphorus University, Institute of Social Sciences, Istanbul, 2005. (Turkish)

76.Gorgun S, Tiryaki A, Topbas M. Substance use and parental bonding styles among university students. Anatolian Journal of Psychiatry 2010; 11:305-312. (Turkish)

77.Ulukoca N, Gokgoz S, Karakoc A. Prevalence of tobacco, alcohol, and substance use in Kirklareli University students. Firat Medical Journal 2013; 18:230-234. (Turkish)

78.Dayi A, Gulec G, Mutlu F. Prevalence of tobacco, alcohol and substance use among Eskisehir Osmangazi University students. Dusunen Adam The Journal of Psychiatry and Neurological Sciences 2015; 28:309-318. [CrossRef]

79.Report for 2013 of the Turkish Drug and Drug Addiction Monitoring Center (TUBIM). Accessed February 08, 2017. (Turkish)

80.Ilhan IO, Yildirim F, Demirbas H, Dogan YB. Prevalance and sociodemographic correlates of substance use in a university student sample in Turkey. Int J Public Health 2009; 54:40-44. [CrossRef]

81.Onya HE, Flisher AJ. Prevalence of substance use among rural high school students in Limpopo Province, South Africa. Afr J Drug Alcohol Stud 2008; 7:71-80.

82.Borges G, Nock MK, Haro Abad JM, Hwang I, Sampson NA, Alonso J, Andrade LH, Angermeyer MC, Beautrais A, Bromet E, Bruffaerts R, de Girolamo G, Florescu S, Gureje O, Hu C, Karam EG, Kovess-Masfety V, Lee S, Levinson D, Medina-Mora ME, Ormel J, Posada-Villa J, Sagar R, Tomov T, Uda H, Williams DR, Kessler RC. Twelve-month prevalence of and risk factors for suicide attempts in the World Health Organization World Mental Health Surveys. J Clin Psychiatry 2010; 71:1617-1628. [CrossRef]

83.Bildik T, Somer O, Kabukcu Basay B, Basay O, Ozbaran B. The validity and reliability of the Turkish version of the inventory of statements about self-injury. Turk Psikiyatri Derg 2013; 24:49-57. (Turkish)

84.Aksoy A, Ogel K. Self-injurious behavior. Anatolian Journal of Psychiatry 2003; 4:226-236. (Turkish)

85.Doku D. Substance use and risky sexual behaviours among sexually experienced Ghanaian youth. BMC Public Health 2012; 12:571. [CrossRef]

86.Rostad WL, Silverman P, Mcdonald MK. Daddy’s little girl goes to college#160;: an investigation of females’ perceived closeness with fathers and later risky behaviors. J Am Coll Health 2014; 62:213-220. [CrossRef]

87.Tot S, Yazici A, Yazici K, Erdem P, Bal N, Metin O. Prevalance of smoking, drinking and illicit drug use among adolescents in Mersin, Turkey: comparison of secondary school, high school and university students. New Symposium 2004; 42:77-81. (Turkish)

88.Poscia A, Parente P, Frisicale EM, Teleman AA, de Waure C, Di Pietro ML. Risky behaviours among university students in Italy. Ann Ist Super Sanita 2015; 51:111-115.

Düşünen Adam - Psikiyatri ve Nörolojik Bilimler Dergisi
Bakırköy Prof. Dr. Mazhar Osman Ruh Sağlığı ve Sinir Hastalıkları Eğitim ve Araştırma Hastanesi
Yerküre Tanıtım ve Yayıncılık Hizmetleri A.Ş.