Table 2. Relative risk (RR) and 95% confidence interval (CI) of all cause mortality by body mass index categories in men and women.^†.

	Body Mass Index
	<18.5	18.5-20.9	21.0-22.9	23.0-24.9	25.0-26.9	27.0-29.9	30≤
Men
Person-years	3,603	30,136	51,932	55,414	31,107	17,137	3,770
No.of death	56	217	297	301	147	85	18
Age-adjusted RR	2.50 (1.88 - 3.33)	1.28 (1.07 - 1.52)	1.04 (0.89 - 1.22)	1.00	0.89 (0.73 - 1.08)	0.95 (0.75 - 1.21)	0.94 (0.59 - 1.52)
Multivariate RR1	2.05 (1.53 - 2.74)	1.10 (0.92 - 1.31)	0.97 (0.83 - 1.15)	1.00	0.92 (0.76 - 1.12)	1.01 (0.80 - 1.29)	1.00 (0.62 - 1.60)
Multivariate RR2	2.06 (1.49 - 2.84)	1.12 (0.92 - 1.36)	0.98 (0.82 - 1.17)	1.00	0.96 (0.77 - 1.18)	1.05 (0.81 - 1.36)	0.85 (0.49 - 1.49)
Women
Person-years	5,711	34,164	54,484	55,463	37,507	23,935	6,865
No.of death	29	75	126	144	95	64	34
Age-adjusted RR	1.96 (1.31 - 2.92)	0.94 (0.71 - 1.24)	0.95 (0.75 - 1.21)	1.00	0.90 (0.70 - 1.17)	0.95 (0.71 - 1.28)	1.72 (1.19 - 2.50)
Multivariate RR1	1.76 (1.16 - 2.67)	0.88 (0.66 - 1.17)	0.92 (0.72 - 1.17)	1.00	0.91 (0.70 - 1.17)	0.95 (0.70 - 1.27)	1.65 (1.13 - 2.40)
Multivariate RR2	1.83 (1.17 - 2.88)	0.82 (0.60 - 1.14)	0.92 (0.70 - 1.19)	1.00	1.02 (0.78 - 1.34)	0.93 (0.67 - 1.28)	1.64 (1.09 - 2.49)

† : Adjusted for age in years; weight loss of 5 kg or more since 20 years old (yes, no); marital status at baseline (whether or not living with spouse; cigarette smoking (never smokers, past smokers, current smokers smoking 1-19 cigarettes per day, or current smokers smoking at least 20 cigarettes per day); alcohol drinking (never drinkers, past drinkers, or current drinkers); walking time per day (less than 1 hour, or 1 hour or longer). Multivariate RR2 has been estimated with the exclusion of 263 subjects (174 men and 89 women) who died within the first 3 years of follow-up. Numbers in parentheses are 95% confidence intervals.