Table 1.
Baseline Participant Characteristics
| Characteristics | Total sample (N=264) | Participants with lower income (N=61) | Participants with higher income (N=203) | ||
|---|---|---|---|---|---|
|
|
|||||
| IBWL+$ | IBWL | IBWL+$ | IBWL | ||
| Age, mean (SD) | 45.9±10.6 | 39.7±11.5 | 40.0±14.0 | 47.8±7.7 | 47.7±9.3 |
| Race/ethnicity, % | |||||
| Non-Hispanic white | 86.4 | 68.4 | 73.8 | 90.4 | 90.7 |
| Non-white | 13.6 | 31.6 | 26.2 | 9.6 | 9.3 |
| African American | 8.7 | 15.8 | 21.4 | 5.8 | 5.3 |
| Asian | 0.8 | 5.3 | 0.0 | 0.0 | 0.7 |
| Native Hawaiian/Pacific Islander | 0.4 | 0.0 | 0.0 | 1.9 | 0.0 |
| Multiracial | 1.9 | 10.5 | 0 | 1.9 | 2.6 |
| Hispanic/Latino | 1.5 | 0.0 | 4.8 | 0.0 | 0.7 |
| Total household income, % | |||||
| $0–$25,000 | 1.9 | 15.8 | 4.8 | – | – |
| $25,001–$50,000 | 21.2 | 84.2 | 95.2 | – | – |
| $50,001–$75,000 | 23.9 | – | – | 32.7 | 30.5 |
| $75,001–$100,000 | 15.5 | – | – | 21.2 | 19.9 |
| $100,001–$125,000 | 19.3 | – | – | 23.1 | 25.8 |
| ≥$125,001 | 18.2 | – | – | 23.1 | 23.8 |
| BMI, kg/m2, mean (SD) | 33.3±6.0 | 34.9±7.1 | 34.4±6.5 | 32.8±6.4 | 33.0±5.6 |
IBWL, Internet behavioral weight loss; IBWL+$, Internet behavioral weight loss plus financial incentives.