Prevalence of substance use among adolescents residing in urban slums of Vellore: A cross-sectional study.

Background: Adolescent substance abuse is a growing public health concern. Adolescence is the starting point for adult substance misuse. The likelihood of acquiring dependence in adulthood is significantly decreased when substance use is not initiated during adolescence. The purpose of this study was to estimate the prevalence of substance use among teenagers, as well as to determine the age of initiation and identify the factors that are linked to substance use.

Methods: A community-based cross-sectional study was conducted in an urban community in Vellore by a tertiary care teaching hospital. A structured questionnaire was administered by the principal investigator to all adolescent boys aged between 10 and 19 years residing in that area for the past year who gave informed consent/assent to assess the prevalence of substance use among teenagers.

Results: The total number of adolescent boys enrolled in the study was 266. The mean (standard deviation [SD]) age of the participants was 16.14 (2.2) years, with a median age of 16 years. Out of the 266 adolescent boys, 33.8% are currently using substances and 15% were past users. The common substance used was smoking tobacco (30%), followed by alcohol consumption (29%). The minimum age of initiation of smoking tobacco and ganja use was 9 and 7 years, respectively. Significant predictors of substance usage included the participant's educational background and the substance use of their parents.

Conclusion: According to this community-based study's findings, smoking tobacco was the most frequently used substance by teenagers, with a higher prevalence of current substance use. Substance misuse in the family was substantially associated with increased drug usage among teenagers. Notwithstanding having an adequate comprehension of the negative results of substance utilisation, teenagers develop this habit, which they might carry into adulthood. It is therefore necessary to establish comprehensive prevention and control programs in schools and the community that target teenagers and their parents.