Clinical trial NCT02629679: Sports, Education and Consumption of Substances in Adolescents
Official title: Prospective Analysis of the Factors Associated With Substance Use and Misuse in Adolescents
Study type: OBSERVATIONAL
Overall status: UNKNOWN
Conditions: Cigarette Smoking
Alcohol Drinking
Lead sponsor: University Hospital of Split
Sponsor class: OTHER
Collaborators: name: University of Ljubljana
First posted: 2015-12-14
Enrollment: 1000
Sex: ALL
Minimum age (years): 14
Maximum age (years): 18
Standard ages: CHILD
ADULT
Accepts healthy volunteers: yes
Observational model: COHORT
Time perspective: PROSPECTIVE
Sampling method: PROBABILITY_SAMPLE
Study population: The sample will comprise approximately 1,000 participants (50% males). At the beginning of the study, the participants will be attending the 3rd year (grade) of high school, and therefore practically all subjects will be 17 years of age at the moment the study starts (+/- 6 months). Participants will be randomly selected from 10 to 15 high schools which offer a 4-year high school education. Because of the prospective study design and consequent need to repeatedly test the same participants, only those schools where the investigators already have personal and professional contacts with the school authorities will be used as possible test environments.

Brief summary: Adolescent substance abuse (SA), which includes the consumption of alcohol, cigarette smoking, the consumption of drugs and other behaviors, is a significant public-health issue in the world today. Recent data showed that prevalence of SA among adolescents in Croatia and surrounding countries (i.e. former Yugoslav republics) is alarming and needs serious intervention. It is hypothesized that participation in physical-exercise-and-sport (PE\&S) will reduce the tendency of young people to abuse substances. However, the literature to date has not consistently validated the perception PE\&S factors are factors which could buffer SA among children and adolescents. One of the probable reasons for evident inconsistencies on findings about relationship between PE\&S and SA is a cross-sectional nature of studies done so far. Therefore, the main rationale (i.e. problem) of this study is lack of current knowledge about influence of the PE\&S on SA among adolescents. The main objective of this study is to prospectively investigate the influence of PE\&S on SA among adolescents aged 17 to 18 years old. Aims of the project are: (1) to define prevalence and trends of SA among adolescents aged 17 to 18 years old; (2) to define prevalence and trends of PE\&S participation; (3) to establish interrelationships which exist between socio-demographic, psychological, educational-factors, and PE\&S (predictors); (4) to identify multivariate and univariate associations between: socio-demographic and SA, psychological factors and SA, PE\&S and SA, educational - scholastic factors and SA.Expected results of the project are: (1) definition of the prevalence of SA among adolescents; (2) definition of the adolescents' participation in PE\&S; (3) identification and interpretation relationships which exist between and within studied predictors of SA (educational factors, socio-demographic factors, PE\&S, psychological factors); (4) identification of the influence of studied predictors on SA.


Eligibility criteria: Inclusion Criteria:

* Children involved in regular scholastic system

Exclusion Criteria:

* No

Primary outcomes:
measure: Exact number of participants who smoke cigarettes as assessed by QSU questionnaire
timeFrame: 2 years
measure: Exact number of participants involved in harmful alcohol drinking as assessed by AUDIT questionnaire
timeFrame: 2 years
Secondary outcomes:
measure: Exact number of participants who failed educationally as assessed by grade-point average
timeFrame: 2 years
measure: Exact number of participants who failed educationally as assessed by behavioral grade
timeFrame: 2 years
Other outcomes:
Locations:
Study officials:
References:
citation: Zenic N, Ostojic L, Sisic N, Pojskic H, Peric M, Uljevic O, Sekulic D. Examination of the community-specific prevalence of and factors associated with substance use and misuse among Rural and Urban adolescents: a cross-sectional analysis in Bosnia and Herzegovina. BMJ Open. 2015 Nov 6;5(11):e009446. doi: 10.1136/bmjopen-2015-009446.
citation: Zenic N, Terzic A, Rodek J, Spasic M, Sekulic D. Gender-Specific Analyses of the Prevalence and Factors Associated with Substance Use and Misuse among Bosniak Adolescents. Int J Environ Res Public Health. 2015 Jun 10;12(6):6626-40. doi: 10.3390/ijerph120606626.
citation: Idrizovic K, Zenic N, Tahirajl E, Rausavljevic N, Sekulic D. CIGARETTE SMOKING AMONG 17-18 YEAR OLD ADOLESCENTS - PREVALENCE AND ASSOCIATION WITH SOCIODEMOGRAPHIC, FAMILIAL, SPORT, AND SCHOLASTIC. FACTORS. Med Pr. 2015;66(2):153-63. doi: 10.13075/mp.5893.00104.
citation: Sekulic D, Ostojic M, Ostojic Z, Hajdarevic B, Ostojic L. Substance abuse prevalence and its relation to scholastic achievement and sport factors: an analysis among adolescents of the Herzegovina-Neretva Canton in Bosnia and Herzegovina. BMC Public Health. 2012 Apr 5;12:274. doi: 10.1186/1471-2458-12-274.
citation: Modric T, Zenic N, Sekulic D. Substance use and misuse among 17- to 18-year-old Croatian adolescents: correlation with scholastic variables and sport factors. Subst Use Misuse. 2011;46(10):1328-34. doi: 10.3109/10826084.2011.579677. Epub 2011 May 25.