Characteristics of women at cycle 1 (2012–2014) of the Diabetes & Women’s Health Study: The Nurses’ Health Study II (NHS II) site (n=3667)
| Characteristic | n | Mean (SD) or (%) |
| Age*, years | 3667 | 57.0 (4.5) |
| <50 | 180 | (4.9) |
| 50–54 | 1008 | (27.5) |
| 55–59 | 1423 | (38.8) |
| ≥60 | 1056 | (28.8) |
| Marital status* | ||
| Single, divorced, separated or widowed | 639 | (17.4) |
| Married or domestic partnership | 2821 | (76.9) |
| Missing | 207 | (5.6) |
| Smoker* | ||
| Never | 2484 | (67.7) |
| Pervious | 998 | (27.2) |
| Current | 178 | (4.9) |
| Missing | 7 | (0.2) |
| Anthropometrics | ||
| Body mass index*†, kg/m2 | 3661 | 29.0 (6.6) |
| <18.5 | 27 | (0.7) |
| 18.5–24.9 | 1096 | (29.9) |
| 25.0–29.9 | 1137 | (31.0) |
| 30.0–34.9 | 818 | (22.3) |
| 35.0–39.9 | 338 | (9.2) |
| ≥40.0 | 245 | (6.7) |
| Missing | 6 | (0.2) |
| Hip circumference, cm | 2834 | 108.2 (14.8) |
| Waist circumference, cm | 2832 | 94.5 (15.8) |
| ≤88 | 1046 | (33.8) |
| >88 | 1786 | (57.7) |
| Missing‡ | 265 | (8.6) |
| Waist to hip ratio, cm | 2830 | 0.87 (0.08) |
| ≥0.85 | 1100 | (35.5) |
| <0.85 | 1730 | (55.9) |
| Missing‡ | 267 | (8.6) |
| Diabetes outcomes | ||
| Diabetes mellitus* | ||
| No | 2813 | (76.7) |
| Type 1 | 8 | (0.2) |
| Type 2 | 846 | (23.1) |
*Data collected from the 2013 NHS II biennial questionnaire.
†Percentages calculated only among women who participated in cycle 1 (n=3097).
‡Body mass index at 2013 was missing for 9.9% of the sample. The last recorded value was carried forward.