Table 1

Associations of smoking and all-cause mortality

	Categories	n*	Cases*	HR†	95% CI	RAP†	95% CI
Smoking status	Never smoker	3412	346	ref	Ref
	Former smoker	2104	357	1.33	1.13 to 1.57	3.3	1.3 to 5.3
	Current smoker	802	204	2.53	2.10 to 3.03	10.7	8.0 to 13.4
Number of currently smoked cigarettes	Never smoker	3412	346	ref	Ref
	1–10	316	63	1.86	1.40 to 2.45	6.5	3.3 to 9.7
	11–20	340	91	2.83	2.23 to 3.60	11.0	7.7 to 14.2
	>20	147	50	3.91	2.87 to 5.34	14.4	10.2 to 18.5
	per 10 increase			1.51	1.41 to 1.62	4.5	3.5 to 5.5
Pack-years of smoking	0	3435	350	ref	ref
	<20	1016	143	1.33	1.08 to 1.63	3.3	0.8 to 5.8
	20–<40	902	194	1.98	1.63 to 2.39	7.9	5.3 to 10.6
	≥40	527	157	2.50	2.03 to 3.09	10.7	7.5 to 13.9
	per 10 increase			1.18	1.14 to 1.22	1.9	1.4 to 2.5
Years since smoking cessation	Never smoker	3412	346	ref	ref
	<10	658	133	1.74	1.42 to 2.14	6.2	3.7 to 8.7
	10–19	548	102	1.50	1.19 to 1.89	4.6	1.9 to 7.3
	≥20	1124	159	1.02	0.83 to 1.25	0.2	−2.1 to 2.5
	Current smoker	803	204	ref	ref
	<10	658	133	0.70	0.56 to 0.88	−4.0	−6.5 to (−1.4)
	10–19	548	102	0.61	0.48 to 0.77	−5.6	−8.4 to (−2.8)
	≥20	1124	159	0.41	0.33 to 0.51	−10.0	−12.7 to (−7.2)

Bold printed: statistically significant findings (p<0.05).
*Numbers for unimputed dataset.
†adjusted for age, sex, education (≤9 years, 10–11 years, ≥12 years), alcohol consumption (abstainer, low intake, medium intake, high intake which were defined as follows: men: 0.1–39.9 g/week, 40–59.9 g/week, ≥60 g/week, women: 0.1–19.9 g/week, 20–39.9 g/week, ≥40 g/week, respectively), body mass index (<18.5 kg/m², 18.5–25.0 kg/m², 25.1–29.9 kg/m², ≥30 kg/m²), diabetes, systolic blood pressure, total cholesterol, history of stroke, history of myocardial infarction and history of cancer.
RAP, Rate advancement period.