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Demographic characteristics of analytic sample
| Overall Sample (n = 501) | Immediate Reinforcement (n = 251) | Comparison (n = 250) | |
|---|---|---|---|
| Age, mean (SD) | 45.8 (8.9) | 46.7 (8.5) | 44.9 (9.1) |
| Gender, n (%) | |||
| Female | 191 (60.3) | 83 (56.1) | 108 (63.9) |
| Male | 126 (39.7) | 65 (43.9) | 61 (36.1) |
| Ethnicity, n (%) | |||
| White, non-Hispanic | 273 (86.1) | 129 (87.2) | 144 (85.2) |
| Non-white | 27 (8.5) | 12 (8.1) | 15 (8.9) |
| Prefer not to answer | 17 (5.4) | 7 (4.7) | 10 (5.9) |
| BMI, mean (SD) | 32.8 (7.0) | 32.4 (6.9) | 33.2 (7.1) |
