The role of spending money and drinking alcohol in adolescent smoking.
OBJECTIVE
Previous studies have shown inconsistent findings with regard to the association between amount of spending money and adolescent smoking. Drinking alcohol may be a mediator of the association between spending money and adolescent smoking. However, no studies have examined this potential role. The objective of this study was to investigate the association between amount of spending money and adolescent smoking and the potential mediation role of alcohol use in this association.


METHODS
The 2003 Ontario Student Drug Use Survey of students in grades 7-12.


METHODS
Multivariable logistic, probit and linear regression models were used to investigate the association between amount of spending money and smoking, and the contribution of drinking alcoholic beverages to this relationship.


RESULTS
Spending money was associated positively with experimental smoking, current smoking and daily consumption of cigarettes (P < 0.01). The analysis adjusted for confounders showed that students with spending money > or =$20/week were significantly more likely to be experimental smokers, students with > or =$30/week were significantly more likely to be current smokers and students with > or =$60/week smoked significantly more cigarettes/day (P < or = 0.05), compared to students with <$10/week. Alcohol use was an important mediator, responsible for 81% of the association of spending money with experimental smoking, 38% with current smoking and 37% with daily consumption of cigarettes.


CONCLUSIONS
Amount of spending money was associated significantly and positively with smoking among adolescents, and alcohol use mediated this association. Integrated tobacco prevention programs may be more effective, and increasing taxes on cigarettes and alcohol would increase price sensitivity among youth and protect against adolescent smoking.
Zhang
Bo
B
Ontario Tobacco Research Unit, University of Toronto, Toronto, ON, Canada. bo_zhang@camh.net
Cartmill
Carrie
C
Ferrence
Roberta
R
D000293:Adolescent; D000294:Adolescent Behavior / Q000187:drug effects* / Q000523:psychology; D000328:Adult; D000428:Alcohol Drinking / Q000009:adverse effects / Q000453:epidemiology* / Q000523:psychology; D002648:Child; D004812:Epidemiologic Methods; D005260:Female; D006801:Humans; D008297:Male; D010287:Parent-Child Relations; D012907:Smoking / Q000191:economics* / Q000453:epidemiology / Q000523:psychology