Table 1.

Number of subjects at baseline and number of deaths to the end of 2003 among clinically healthy subjects from the Finnish Twin Cohort in classes of BMI in 1975.

BMI class	Women		Men
	number of subjects	number of deaths	number of subjects	number of deaths
Underweight
<18.5 kg/m2	700	20	129	2
Normal weight
18.5 to <22 kg/m2	3,926	140	2,330	149
22 to <23.5 kg/m2	1,209	58	1,688	144
23.5 to <25 kg/m2	859	63	1,513	182
Overweight
25 to <27 kg/m2	569	47	1,160	158
27 to <30 kg/m2	368	34	669	119
Obese
≥30 kg/m2	136	14	168	33
Total	7,767	376	7,657	787