Baseline characteristics of the study population by follow-up status (N (%) or mean±SD)
| Total population | 6-month completers | 6-month non-completer | p Value | 2-year completers | 2-year non-completers | p Value | |
|---|---|---|---|---|---|---|---|
| N | 430 | 344 | 86 | 170 | 174 | ||
| Age (years) | 49±9 | 50±9 | 47±10 | 0.006 | 51±8 | 48±9 | 0.005 |
| Sex | 0.808 | 0.166 | |||||
| Female | 240 (56%) | 191 (56%) | 49 (57%) | 88 (52%) | 103 (59%) | ||
| Race/ethnicity | 0.204 | 0.066 | |||||
| White | 364 (85%) | 288 (84%) | 76 (88%) | 151 (89%) | 137 (80%) | ||
| Marital status | 0.714 | 0.002 | |||||
| Married or life partner | 356 (83%) | 286 (83%) | 70 (81%) | 152 (89%) | 134 (77%) | ||
| Education | 0.084 | 0.853 | |||||
| College degree or higher | 320 (74%) | 265 (77%) | 55 (64%) | 133 (78%) | 132 (76%) | ||
| Diabetes mellitus | 114 (27%) | 94 (27%) | 20 (23%) | 0.444 | 48 (28%) | 46 (26%) | 0.708 |
| Baseline BMI (kg/m2) | 41±6 | 40±6 | 42±7 | 0.035 | 40±5 | 41±6 | 0.103 |
| Baseline WC (cm) | 120±14 | 119±14 | 123±16 | 0.063 | 119±13 | 120±15 | 0.459 |
BMI, body mass index; WC, waist circumference.