Table 3

 Relative risks (RR) by number of years from quitting among male ex-smokers compared with smokers

Causes of death0–5 years0–16 years17 years+
RR (95% CI)RR (95% CI)RR (95% CI)
*p<0.05.
All causes combined0.95 (0.76 to 1.19)0.85 (0.71 to 1.02)0.72 (0.54 to 0.96)*
All cancer combined0.74 (0.51 to 1.06)0.80 (0.61 to 1.05)0.60 (0.38 to 0.94)*
Lung cancer0.42 (0.18 to 0.98)*0.66 (0.39 to 1.11)0.32 (0.11 to 0.91)*
Ischaemic heart disease (aged 35–64)0.62 (0.24 to 1.58)0.43 (0.19 to 0.96)*0.54 (0.17 to 0.78)*