Table 2

 Comparison of the proportion of quitters among ever smokers and quitters among ever chewers

AgePrevalence (%)Proportion of ex-smoker among ever smokerPrevalence (%)Proportion of ex-chewer among ever chewer
SmokerEx-smokerChewerEx-chewer
Data source: National Health Interview Survey (NHIS), 2001.
20–2944.41.74%12.32.718%
30–3957.14.57%22.04.116%
40–4951.56.912%19.25.923%
50–5947.18.015%13.56.131%
60–6940.813.225%8.57.246%
70+30.622.843%2.03.161%
Total47.67.413%14.44.624%