Comparison of Prevalence- and Smoking Impact Ratio-Based Methods of Estimating Smoking-Attributable Fractions of Deaths

摘要: BACKGROUND Smoking is a major modifiable risk factor for premature mortality. Estimating the smoking-attributable burden important public health policy. Typically, prevalence- or smoking impact ratio (SIR)-based methods are used to derive estimates, but there controversy over which method more appropriate country-specific estimates. We compared fractions (SAFs) of deaths estimated by these two methods. METHODS To estimate SAFs in 2012, we several different prevalence-based approaches using no lag and 10- 20-year lags. For SIR-based method, obtained lung cancer mortality rates from Korean Cancer Prevention Study (KCPS) United States-based Study-II (CPS-II). The relative risks diseases associated with were also cohort studies. RESULTS males, KCPS-derived SIRs similar those females, markedly greater than all SAFs. Differences time-lag period minimal among longer-lagged prevalence periods significantly larger females. CPS-II-based lower KCPS-based >15 percentage points most diseases, exceptions chronic obstructive pulmonary disease. CONCLUSIONS males. However, neither nor resulted precise characteristics study population should be carefully considered when choosing SAF.