Percentage of school going adolescents of a specified age range who report having ever used marijuana during their life.
Method of estimation:
Data are derived from school-based surveys, most commonly the Global School-based Student Health Survey (GSHS) and the Health Behaviour in School-aged Children (HBSC).
Numerator: Number of school going adolescents of a specified are range who report having ever used marijuana during their life.
Denominator: Total number of school going adolescents of this specified are range.