Table 1. Baseline characteristics of study participants, Women's Health Initiative 1993-2005 (N=154,493).
| Characteristic | Asian | Black | Hispanic | White | Overall |
|---|---|---|---|---|---|
| No. (%) Continuous variable (Mean±SD) | 3,940(2.6) | 12,820(8.3) | 6,009(3.9) | 128,998(83.7) | 154,493 |
| Age (years) | 62.9±7.5 | 61.4±7.1 | 60.1±6.8 | 63.5±6.8 | 63.2±7.3 |
| Body mass index (kg/m2) | 24.6±4.5 | 30.906.6 | 28.9±5.7 | 27.5±5.6 | 27.8±5.8 |
| Body weight (kg) | 59.4±12.6 | 82.0±18.8 | 71.8±15.8 | 72.6±16.1 | 73.0±16.6 |
| Waist circumference (cm) | 78.1±10.4 | 90.9±13.8 | 86.4±12.7 | 85.6±13.4 | 85.9±13.5 |
| Physical activity (MET-hours/week)1 | 13.2±14.0 | 9.8±13.0 | 10.6±13.8 | 13.0±13.8 | 12.6±13.8 |
| Categorical variable – n (%) Education | |||||
| <High school | 192(4.9) | 1,415(11.2) | 1,609(27.3) | 4303(3.4) | 7,753(5.1) |
| High school/GED | 598(15.3) | 1,738(13.7) | 952(16.1) | 22,317(17.4) | 26,092(17.0) |
| >High school, <4 year | 1,367(35.0) | 4,922(38.9) | 2,073(35.1) | 48,520(37.9) | 58,000(37.8) |
| college | |||||
| ≥4 year college | 1,753(44.8) | 4,588(36.2) | 1,266(21.5) | 53,024(41.4) | 61,492(40.1) |
| Smoking status | |||||
| Never | 2,819(72.0) | 6,221(49.5) | 3,724(63.3) | 63,515(49.8) | 77,712(51.0) |
| Former | 941(24.0) | 4,876(38.5) | 1,724(29.6) | 55,566(43.6) | 64,156(42.1) |
| Current | 157(4.0) | 1,465(11.6) | 418(7.2) | 8,387(6.6) | 10,637(7.0) |
| Hormone therapy use last 3 months | |||||
| Never | 1,088(28.0) | 5,841(46.4) | 2,327(39.8) | 39,191(31.4) | 49,395(32.9) |
| Former | 811(20.8) | 3,173(25.2) | 1,298(22.2) | 28,664(22.9) | 34,613(23.1) |
| Current | 1,994(51.2) | 3,587(28.5) | 2,221(38.0) | 57,150(45.7) | 65,992(44.0) |
| Family history of diabetes | |||||
| Yes | 1,371(34.9) | 5,547(43.6) | 2,432(41.1) | 37,274(29.0) | 47,545(31.0) |
| No | 2,275(58.0) | 5,863(46.1) | 3,120(52.7) | 86,261(67.2) | 99,077(64.5) |
1
Total physical activity energy expenditure