Table 3. Associations of BMI with total and cardiovascular mortality by age strata.

	Non-Cardiovascular and Stroke Mortality				Cardiovascular and Stroke Mortality
BMI categories	Pop/deaths	/1000 p-y	Adj HR	(95% C.I.)	Pop/deaths	/1000 p-y	Adj HR	(95% C.I.)
Whole cohort
<18.5 (Underweight)	158/27	55.4	1.89	(1.12–3.20)	158/6	12.3	3.99	(0.96–16.58)
18.5–22.9 (Normal weight)	1039/76	24.0	1.20	(0.80–1.81)	1039/16	5.1	2.73	(0.79–9.44)
23.0–24.99(Normal-weight-II)	595/34	18.1	1	(referent)	595/3	1.6	1	(referent)
25.0–27.49 (Overweight Pre-obese-I)	467/27	18.6	0.99	(0.60–1.65)	467/7	4.8	2.48	(0.63–9.70)
27.5–29.99 (Overweight-Pre-obese-II)	224/15	22.1	1.28	(0.70–2.36)	224/2	2.9	1.89	(0.31–11.34)
≥30.0 (Overweight Obese Class I, II, III)	121/7	18.2	1.05	(0.47–2.39)	121/4	10.4	6.62	(1.45–30.11)
Middle-aged cohort, 55–64 years
<18.5 (Underweight)	63/5	25.0	6.30	(1.65–24.07)	63/0	NA	NA	NA
18.5–22.9 (Normal weight)	526/19	11.9	3.85	(1.29–11.49)	526/2	1.3	1.67	(0.14–20.48)
23.0–24.99(Normal-weight-II)	295/4	4.3	1	(referent)	295/1	1.1	1	(referent)
25.0–27.49 (Overweight Pre-obese-I)	225/6	8.6	2.23	(0.62–7.96)	225/1	1.4	1.92	(0.11–34.76)
27.5–29.99 (Overweight-Pre-obese-II)	113/3	8.7	2.20	(0.48–10.03)	113/0	NA	NA	NA
≥30.0 (Overweight Obese Class I, II, III)	70/4	18.7	5.22	(1.26–21.60)	70/0	NA	NA	NA
Old cohort, 65+
<18.5 (Underweight)	95/22	76.7	1.50	(0.84–2.67)	95/6	20.9	6.15	(1.19–31.68)
18.5–22.9 (Normal weight)	513/57	36.3	0.93	(0.59–1.46)	513/14	8.9	3.53	(0.79–15.71)
23.0–24.99(Normal-weight-II)	300/30	31.5	1	(referent)	300/2	2.1	1	(referent)
25.0–27.49 (Overweight Pre-obese-I)	242/21	28.0	0.84	(0.48–1.47)	242/6	8.0	3.17	(0.63–15.93)
27.5–29.99 (Overweight-Pre-obese-II)	111/12	36.0	1.17	(0.60–2.31)	111/2	6.0	2.91	(0.41–20.72)
≥30.0 (Overweight Obese Class I, II, III)	51/3	17.6	0.52	(0.16–1.72)	51/4	23.5	10.0	(1.80–55.67)

Covariates in in Cox regression model are: age (continuous), sex (men, women), education (≤6, >6 years), smoking, alcohol, physical activities