Changes in adolescent smoking with implementation of local smoke-free policies in Indonesia: Quasi-experimental repeat cross-sectional analysis of national surveys of 2007 and 2013.

BACKGROUND

Banning smoking from public places may prevent adolescent smoking, but there is little evidence on impact of smoke-free policies (SFPs) from low and middle-income countries. This study assessed to what extent the adoption of local SPFs in Indonesia between 2007 and 2013 associated with adolescent smoking.

METHODS

Data on 239,170 adolescents (12-17 years old) were derived from the 2007 and 2013 national health surveys in 497 districts and 33 provinces. This study compared 2013 survey respondents living in districts/provinces that adopted SFPs between 2007 and 2013, with 2007 respondents and 2013 respondents in districts/provinces that did not adopt policies. Multilevel logistic regression analysis assessed whether SFP was associated with daily and non-daily smoking. We controlled for survey year, SFP in 2007, socio-demographics, and district characteristics.

RESULTS

Strong district SFPs was significantly associated with lower odds of daily smoking (OR:0.81, 95 %CI:0.69-0.97), but non-significantly with non-daily smoking (OR:0.89, 95 %CI:0.76-1.05). Strong provincial SFPs was not associated with daily smoking (OR:1.02, 95 %CI:0.84-1.25), but was associated with higher odds of non-daily smoking (OR:1.22, 95 %CI:0.99-1.51). Moderately strong SFPs did not consistently show associations in the same direction. For example, moderately strong provincial SFP was associated with higher odds of daily smoking (OR:1.27, 95 %CI:1.11-1.46) and lower odds of non-daily smoking (OR:0.82, 95 %CI:0.72-0.93).

CONCLUSION

We did not detect a consistent short-term effect of district and province-level smoke-free policies on adolescent smoking in Indonesia. Weak implementation and poor compliance may compromise effectiveness, which would call for improvement of SFP implementation in Indonesia.