Table 1 Characteristics of study population in the Women’s Health Initiative Observational Study
Characteristic | Never or former menopausal hormone therapy users (n = 957) | Current menopausal hormone therapy users (n = 878) | ||||
|---|---|---|---|---|---|---|
n | % | Weighted %a | n | % | Weighted %a | |
Age at baseline blood draw | ||||||
<55 years | 82 | 8.6 | 8.7 | 101 | 11.5 | 16.8 |
55–59 years | 177 | 18.5 | 17.3 | 194 | 22.1 | 25.8 |
60–64 years | 230 | 24.0 | 21.0 | 218 | 24.8 | 23.9 |
65–69 years | 201 | 21.0 | 23.1 | 178 | 20.3 | 18.3 |
70–74 years | 170 | 17.8 | 19.3 | 135 | 15.4 | 11.2 |
75–79 years | 97 | 10.1 | 10.6 | 52 | 5.9 | 4.0 |
Race | ||||||
White | 841 | 87.9 | 89.4 | 825 | 94.0 | 93.5 |
Year at blood draw | ||||||
1993–1996 | 586 | 61.2 | 61.4 | 544 | 62.0 | 61.9 |
1997–1998 | 371 | 38.8 | 38.6 | 334 | 38.0 | 38.1 |
Smoking status | ||||||
Never | 488 | 51.0 | 50.2 | 427 | 48.6 | 45.9 |
Former | 402 | 42.0 | 41.3 | 416 | 47.4 | 48.8 |
Current | 67 | 7.0 | 8.5 | 35 | 4.0 | 5.3 |
Time since menopause | ||||||
<10 years | 299 | 32.9 | 31.5 | 349 | 39.7 | 44.0 |
10–19 years | 359 | 39.5 | 38.7 | 330 | 37.6 | 34.8 |
≥ 20 years | 250 | 27.5 | 29.9 | 199 | 22.7 | 21.1 |
Moderate- to vigorous-intensity physical activity | ||||||
0 MET-h/week | 205 | 21.4 | 19.9 | 145 | 16.5 | 18.4 |
0.1–9.9 MET-h/week | 304 | 31.8 | 30.9 | 279 | 31.8 | 34.2 |
≥10.0 MET-h/week | 448 | 46.8 | 49.3 | 454 | 51.7 | 47.4 |
Characteristic | n | Weighted n a | Weighted mean (SD) | n | Weighted n a | Weighted mean (SD) |
Current BMI, kg/m2 | 953 | 30,814 | 27.0 (0.27) | 877 | 25,152 | 26.6 (0.28) |
BMI at age 18 years, kg/m2 | 933 | 30,149 | 20.6 (0.15) | 859 | 24,661 | 20.5 (0.12) |
Waist-to-hip ratio | 952 | 30,720 | 0.81 (0.004) | 877 | 25,152 | 0.79 (0.004) |
Height, cm | 956 | 30,817 | 162.2 (0.30) | 877 | 25,152 | 163.1 (0.34) |