title: Some epidemiological factors related to smoking among secondary school children of Delhi urban area.
abstract: The smoking habits of 1284 school children in Delhi Urban Areas (India) were studied. The prevalence of cigarette smoking was 8.7% overall, increasing from 5.4% amongst boys age 14 to 26.7% at age 19. Nearly 80% started smoking between the ages of 11 to 14 years. Smoking habit was associated with family income and presence of smokers in the family.
mesh_terms: D000293:Adolescent; D000367:Age Factors; D002648:Child; D005190:Family; D005260:Female; D006801:Humans; D007182:Income; D007194:India; D008297:Male; D012737:Sex Factors; D012907:Smoking / Q000453:epidemiology*; D013334:Students