Table 3

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)

CharacteristicnMean (SD) or (%)
Age*, years366757.0 (4.5)
 <50180(4.9)
 50–541008(27.5)
 55–591423(38.8)
 ≥601056(28.8)
Marital status*
  Single, divorced, separated or widowed639(17.4)
  Married or domestic partnership2821(76.9)
 Missing207(5.6)
Smoker*
 Never2484(67.7)
 Pervious998(27.2)
 Current178(4.9)
 Missing7(0.2)
Anthropometrics
Body mass index*†, kg/m2 366129.0 (6.6)
 <18.527(0.7)
 18.5–24.91096(29.9)
 25.0–29.91137(31.0)
 30.0–34.9818(22.3)
 35.0–39.9338(9.2)
 ≥40.0245(6.7)
 Missing6(0.2)
Hip circumference, cm2834108.2 (14.8)
Waist circumference, cm283294.5 (15.8)
 ≤881046(33.8)
 >881786(57.7)
 Missing‡265(8.6)
Waist to hip ratio, cm28300.87 (0.08)
 ≥0.851100(35.5)
 <0.851730(55.9)
 Missing‡267(8.6)
Diabetes outcomes
Diabetes mellitus*
 No2813(76.7)
 Type 18(0.2)
 Type 2846(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.