Table 1.
Entry characteristics of randomized participants
| Black men | Black women | White men | White women | |
|---|---|---|---|---|
| N who started phase I | 196 | 540 | 355 | 594 |
| % who entered phase II | 62% | 49% | 72% | 65% |
| N who started phase II | 121 | 267 | 257 | 387 |
| Age in years, mean (s.d.) | 53 (9) | 53 (9) | 58 (9) | 57 (8) |
| BMI in kg/m2, mean (s.d.) | 34.4 (4.5) | 35.3 (5.0) | 33.4 (4.2) | 33.5 (4.9) |
| Weight in kg, mean (s.d.) | 108.3 (16.2) | 94.8 (15.2) | 104.2 (15.3) | 89.5 (14.5) |
| Overweight (BMI 25–29.9), % | 20 | 17 | 24 | 28 |
| Obese (BMI ≥30), % | 80 | 83 | 76 | 72 |
| College degree or higher, % | 69 | 56 | 72 | 56 |
| Household income ≥$60 k/year, % | 74 | 42 | 71 | 54 |
| On BP meds (%) | 89 | 94 | 83 | 84 |
| Number of BP meds (among those on BP meds), mean (s.d.) | 2.0 (0.9) | 1.9 (0.9) | 1.8 (0.8) | 1.7 (0.8) |
| On lipid-lowering meds, % | 42 | 24 | 53 | 41 |
| Current smoker, % | 3 | 5 | 3 | 5 |
| QOL: mental, mean (s.d.) | 54.8 (6.8) | 53.0 (8.6) | 53.7 (7.5) | 51.5 (9.3) |
| QOL: physical, mean (s.d.) | 51.2 (7.6) | 50.6 (8.0) | 51.5 (7.5) | 49.6 (8.0) |
| Social support for diet, mean (s.d.) | ||||
| Encouragement from family | 20.5 (8.3) | 18.1 (8.8) | 18.9 (7.4) | 16.4 (7.0) |
| Discouragement from familya | 14.7 (4.5) | 15.4 (5.4) | 13.9 (3.7) | 14.5 (4.8) |
| Encouragement from friends | 16.0 (6.9) | 17.7 (8.0) | 12.8 (5.2) | 14.1 (5.6) |
| Discouragement from friendsa | 13.7 (4.3) | 14.9 (5.1) | 12.7 (3.1) | 13.3 (3.5) |
| Social support for exercise score, mean score (s.d.) | ||||
| Encouragement from family | 29.0 (10.9) | 27.2 (11.2) | 29.4 (9.5) | 28.0 (10.3) |
| Encouragement from friends | 17.3 (8.2) | 19.4 (9.7) | 14.5 (6.3) | 17.1 (8.2) |
| Perceived stress, mean (s.d.) | 3.7 (2.5) | 4.1 (2.8) | 3.4 (2.2) | 4.6 (2.8) |
| Depression score, mean (s.d.) | 2.5 (3.0) | 3.3 (3.7) | 3.1 (3.1) | 4.4 (3.8) |
| Number of times participant previously lost ≥ 10 lbs, % | ||||
| Never | 27 | 9 | 11 | 5 |
| 1–5 times | 66 | 67 | 69 | 61 |
| 6 or more times | 7 | 24 | 20 | 34 |
| Maximum amount of weight loss from previous attempts, % | ||||
| Never tried | 1 | 2 | 5 | 1 |
| ≤20 lbs | 75 | 57 | 50 | 41 |
| 21–40 lbs | 17 | 32 | 32 | 39 |
| >40 lbs | 7 | 9 | 13 | 19 |
| Difference between current weight and “best weight for me,” mean lb (s.d.) |
19.6 (11.5) | 23.5 (11.7) | 20.1 (10.5) | 23.5 (11.8) |
BP, blood pressure; QOL, quality of life.
a
Coded so that higher discouragement score means less discouragement