Table 1.
Baseline Self-reported Characteristics of Study Sample
| Characteristic | Alla | Womena | Mena | p Valueb |
|---|---|---|---|---|
| Chronological age, mean years (SD) | 47.6 (12.2) | 48.7 (11.6) | 47.9(11.8) | .1 |
| Non-white, no. (%), n = 3,452 | 784 (22.7) | 416 (20.5) | 368 (25.8) | <.001 |
| BMI, mean (SD), n = 3,227 | 27.7 (6.3) | 27.8 (7.1) | 27.4 (4.9) | .05 |
| Obesec, no. (%), n = 3,227 | 901 (27.9) | 584 (30.7) | 317 (23.9) | <.001 |
| Moderate activity ≥ 3×/wk, no. (%), n = 3,468 | 2,253 (65.0) | 1,278 (62.0) | 975 (69.3) | <.001 |
| Vigorous activity ≥ 3×/wk, no. (%), n = 3,467 | 1,121 (32.3) | 528 (25.6) | 593 (42.1) | <.001 |
| Sitting >8 h/d, no. (%), n = 3,467 | 2,303 (66.4) | 1,392 (67.6) | 911 (64.7) | .09 |
| Ever smoker, no. (%), n = 2,825 | 774 (27.4) | 448 (25.9) | 326 (29.7) | .03 |
| Current smoker, no. (%), n = 3,469 | 174 (5.0) | 73 (3.5) | 101 (7.2) | <.0001 |
| Cholesterol-lowering meds, no. (%), n = 2,817 | 337 (12.0) | 163 (9.5) | 171 (15.7) | <.001 |
| Past and/or current self-report of: | ||||
| High cholesterol, no. (%), n = 3,351 | 788 (23.5) | 408 (20.4) | 380 (28.1) | <.001 |
| Hypertension, no. (%), n = 3,361 | 579 (17.2) | 313 (15.6) | 266 (19.6) | .003 |
| Asthma, no. (%), n = 3,389 | 559 (16.5) | 370 (18.3) | 189 (13.8) | <.001 |
| Type 2 diabetes, no. (%), n = 3,309 | 125 (3.8) | 78 (4.0) | 47 (3.5) | .6 |
| Breast cancer, no. (%), n = 3,235 | 63 (1.9) | 59 (3.0) | 4 (0.3) | <.001 |
| Coronary artery disease, no. (%), n = 3,280 | 50 (1.5) | 19 (1.0) | 31 (2.3) | .003 |
Note: BMI = body mass index.
aTotal N = 3,558; women, N = 2,087; men, N = 1,471. bFor comparisons between men and women, chi-square tests were run for categorical variables and two-sided t-tests for continuous variables. cObese defined as BMI ≥30.