Table 4

Characteristics of women at cycle 1 (2012–2014) of the Diabetes & Women’s Health Study: The Danish National Birth Cohort site (n=790)

CharacteristicsnMean (SD) or (%)
Age, years79044.6 (4.6)
 <40139(17.6)
 40–44280(35.4)
 45–49265(33.5)
 50–5499(12.5)
 ≥557(0.9)
Marital status
 Married or domestic partnership674(85.3)
 Single, divorced, separated or widowed112(14.2)
 Missing4(0.5)
Smoker
 Never405(51.3)
 Previous246(31.1)
 Current136(17.2)
 Missing3(0.4)
Employment status
 Employed663(83.9)
 Retired26(3.3)
 Student19(2.4)
 Unemployed79(10.0)
 Missing3(0.4)
Highest education level
 High school or less126(16.0)
 Some college275(34.8)
 College degree or higher379(48.0)
 Missing10(1.3)
Family history of type 2 diabetes (1st-degree relative)
  No509(64.4)
  Yes281(35.6)
Clinical exam607(76.8)
Anthropometrics
Self-reported weight at 18 years77362.7 (11.7)
Current measured height, cm606167.0 (7.4)
Current measured weight, kg60681.0 (16.8)
Current body mass index*, kg/m2 60629.2 (6.9)
 <18.57(1.2)
 18.5–24.9161(26.5)
 25.0–29.9192(31.6)
 30.0–34.9155(25.5)
 35.0–39.959(9.7)
 ≥40.032(5.3)
 Missing†1(0.2)
Measured hip circumference, cm606109.3 (12.0)
Measured iliac waist circumference, cm606100.1 (14.1)
 ≤88129(21.3)
 >88477(78.6)
 Missing†1(0.2)
Waist to hip ratio, cm6060.91 (0.07)
 <0.85100(16.5)
 ≥0.85506(83.4)
 Missing†1(0.2)
Diabetes outcomes
Self-reported diabetes
  None548(69.4)
  Type 1 diabetes22(2.8)
  Type 2 diabetes164(20.8)
  Unknown type45(5.7)
 Missing11(1.4)
HbA1c, %6035.6 (0.9)
 <5.7410(67.6)
 5.7–6.4136(22.4)
 ≥6.557(9.4)
 Missing†4(0.7)
Fasting plasma glucose‡, mmol/L6035.9 (1.6)
 <7.0533(87.8)
 ≥7.070(11.5)
 Missing†4(0.7)
75 g OGTT, 2-hour plasma glucose‡, mmol/L5076.3 (2.7)
 <11.1475(78.3)
 ≥11.132(5.3)
 Missing†§100(16.5)
Diabetes mellitus¶
 No546(69.1)
 Type 122(2.8)
 Type 2215(27.2)
 Missing7(0.9)
  • *Body mass index calculated from measured height and weight.

  • †Missing calculated among women who had a clinical exam performed (n=607).

  • ‡7.0 mmol/L is equivalent to 126 mg/dL, 11.1 mmol/L is equivalent to 200 mg/dL, cut points based on American Diabetes Association 2012 guidelines.

  • §Diabetes mellitus status based on self-report, elevated HbA1c, fasting plasma glucose, or 2-hour plasma glucose. All women with self-reported type 1 diabetes were classified as such irrespective of their clinical exam results.

  • ¶OGTT not performed if women declined or there was a strong clinical concern as assessed by the chief physician.

  • OGTT, oral glucose tolerance test .