Are adolescents likely to start smoking early if their parents are smokers? A study of Jamaican High School Students

Background: The prevalence of cigarette smoking is high among adolescents in the Caribbean, including Jamaica. Age of initiation of cigarette smoking varies among adolescents. A number of factors has been reported to influence early age of initiation of cigarette smoking. The aim of this study was to determine if parental smoking status was associated with early age of onset of cigarette smoking among Jamaican adolescents.

Methods: Data from the Jamaican National School Survey (NSS) conducted in 2013 were analysed. The nationally representative sample comprised of 3,365 students enrolled in 8th grade to 12th grade in 38 public and private secondary schools. Descriptive and inferential statistics were computed using SPSS.

Results: The mean age of initiation of cigarette smoking among the subjects was 12.4years [SD: 2.69]. There was no significant association between parental cigarette smoking status and the age of initiation of cigarette smoking among the adolescents (female X2 = 0.753, P = 0.861; male X2 = 6.953, P = 0.073). Logistic regression analysis showed that parental smoking status was not a predictor of early age of initiation of cigarette smoking among the adolescents (father/ guardian AOR= 0.81, 95% CI= 0.56- 1.11; mother/guardian AOR= 0.96, 95% CI= 0.44 – 2.10; both parent AOR= 0.49, 95%CI= 0.22- 1.07). However, having a parent with secondary education was a risk factor for early initiation of smoking (AOR= 1.71, 95%CI= 1.13-2.57), while being in 8th grade was a protective factor against early age of initiation of cigarette smoking (AOR= 0.43, 95% CI= 0.23 - 0.80).

Conclusion: Parental smoking cigarette smoking status was not a predictor of early age of cigarette smoking initiation among Jamaican adolescents.