Table 2.
Sociodemographic characteristics of individual social contacts (n = 55).
| Total (n = 55) |
Previous participant (n = 19) | Concurrent participant (n = 36) | P valuea | |
|---|---|---|---|---|
| Baseline sociodemographic factors | ||||
| Black (%) | 72.7 | 78.9 | 69.4 | 0.34 |
| Female (%) | 96.4 | 94.7 | 97.2 | 0.58 |
| Age (yrs) | 44.3 ± 9.5 | 44.2 ± 10.7 | 44.3 ± 9.0 | 0.10 |
| Weight (kg) | 104.1 ± 16.1 | 106.3 ± 18.9 | 104.1 ± 16.1 | 0.64 |
| BMI (kg/m2) | 39.0 ± 5.3 | 39.4 ± 5.4 | 38.8 ± 5.3 | 0.69 |
| Weight loss at 6 months | ||||
| Total weight loss (kg) | 7.7 ± 5.9 | 8.7 ± 4.3 | 7.2 ± 6.6 | 0.35 |
| % of weight loss | 7.7 | 8.7 | 7.1 | 0.33 |
| Behavioral adherence measures | ||||
| % of group sessions attended | 78.2 | 82.3 | 75.9 | 0.32 |
| % of journals submitted | 75.7 | 84.3 | 71.1 | 0.08 |
a χ 2 test for categorical variables, independent t-test for continuous variables.