Table 1.

Age-standardised characteristics (means or percentages) of 27,210 participants in the Women’s Health Study by level of HbA_1c measured in stored erythrocytes

	No self-reported history of diabetes							Self-reported history of diabetes
HbA1c range (%)	2.27–4.79	4.79–4.91	4.92–5.03	5.04–5.18	5.19–5.59	5.60–5.99	6.00–14.87	4.62–6.99	7.00–14.88
HbA1c median (%)	4.70	4.86	4.98	5.11	5.31	5.73	6.48	6.06	8.34
n	5,105	5,105	5,105	5,105	5,105	696	328	307	354
Age (years)	52.8	53.9	54.4	55.3	56.4	56.8	56.7	57.5	56.3
BMI (kg/m2)	24.5	25.1	25.4	26.0	27.3	29.5	32.1	30.2	31.2
HDL-cholesterol (mmol/l)	1.48	1.45	1.41	1.38	1.32	1.21	1.11	1.20	1.13
LDL-cholesterol (mmol/l)	3.03	3.16	3.21	3.26	3.37	3.39	3.32	3.24	3.37
Triacylglycerol (mmol/l)a	1.25	1.30	1.36	1.40	1.50	1.65	2.10	2.00	2.19
hsCRP (mg/l)a	1.45	1.65	1.75	1.89	2.26	3.40	5.28	3.66	5.25
History of hypertension (%)	20.1	22.3	21.1	25.4	28.9	39.3	51.8	59.1	57.1
Smoking status (%)
Never	49.6	51.8	52.0	52.9	52.3	50.7	48.1	50.9	50.1
Past	41.5	36.8	35.9	34.8	35.2	36.1	39.1	37.4	35.2
Current	8.9	11.4	12.1	12.3	12.6	13.2	12.9	11.8	14.6
Postmenopausal hormone use (%)
Never	42.5	43.0	45.1	46.3	49.7	56.6	58.0	49.3	58.4
Past	7.0	8.8	9.5	10.2	12.8	12.8	13.5	12.7	13.0
Current	50.4	48.2	45.3	43.5	37.5	30.6	28.5	38.0	28.6
Strenuous exercise (%)
Rarely or never	34.1	35.4	36.5	37.4	39.6	47.7	52.0	43.4	50.6
<1 time/week	18.2	19.2	19.8	19.7	20.8	20.7	18.8	20.0	20.0
1–3 times/week	34.2	33.7	32.1	31.4	30.0	25.0	22.8	26.9	22.6
≥4 times/week	13.5	11.7	11.6	11.5	9.6	6.5	6.4	9.7	6.8
Multivitamin use (%)
Never	11.7	12.7	13.4	12.6	14.1	12.6	13.4	13.7	18.5
Past	56.1	55.7	57.3	58.8	59.7	58.9	63.4	59.4	53.6
Current	32.2	31.5	29.4	28.6	26.2	28.4	23.2	26.9	27.8

Among women with no self-reported history of diabetes and HbA_1c <5.60%, categories represent quintiles. Other categories are based on clinical recommendations

^aGeometric mean