Table 1 Baseline characteristics according to body mass index categories among patients with type 2 diabetes

Characteristics	Body mass index categories (kg/m²)					p Value for trend
Characteristics	<23.0	23.0–24.9	25.0–29.9	30.0–34.9	⩾35.0	p Value for trend
Men
Number of subjects	3795	5388	15 365	4803	1183
Age (years)	61.3	63.4	64.0	63.0	60.3	<0.001
Diastolic blood pressure (mm Hg)	83	84	86	89	93	<0.001
Systolic blood pressure (mm Hg)	137	140	144	151	159	<0.001
Serum cholesterol (mmol/l)	5.4	5.5	5.6	5.8	5.9	<0.001
Current smoker (%)	26.2	21.2	20.1	16.6	16.1	<0.001
Alcohol drinker (%)	17.5	14.0	14.2	14.7	16.5	0.003
Diabetes treatments (%)						<0.001
Oral glucose-lowering drug	33.3	42.1	50.7	52.3	53.2
Insulin	66.7	57.9	49.3	47.7	46.8
Duration of diabetes (%)						<0.001
<10 years	59.8	56.3	56.4	58.0	64.4
⩾10 years	40.2	43.7	43.6	42.0	35.6

Women
Number of subjects	5380	7431	27 694	13 499	4905
Age (years)	65.2	66.2	66.0	65.1	63.1	<0.001
Diastolic blood pressure (mm Hg)	83	85	86	89	93	<0.001
Systolic blood pressure (mm Hg)	140	143	146	152	160	<0.001
Serum cholesterol (mmol/l)	5.4	5.5	5.6	5.8	6.0	<0.001
Current smoker (%)	2.1	1.5	1.1	0.9	0.9	<0.001
Alcohol drinker (%)	1.6	1.2	1.1	1.1	1.2	0.036
Diabetes treatments (%)						<0.001
Oral glucose-lowering drug	43.1	48.7	54.7	51.0	52.5
Insulin	56.9	51.3	45.3	49.0	47.5
Duration of diabetes (%)						<0.001
<10 years	52.8	51.9	52.5	52.2	55.7
⩾10 years	47.2	48.1	47.5	47.8	44.3