Table 3.
Baseline Predictors of Study Attrition
| Characteristics | Total Sample (N=504) M±SD or n (%) |
Completers (n=404) M±SD or n (%) |
Non- Completers (n=100) M±SD or n (%) |
OR (95% CI) |
|---|---|---|---|---|
| Socio-demographic | ||||
| Age (years) | 47.35±9.75 | 48.20±9.23 | 43.89±11.04 | 0.95 (0.93, 0.98) |
| Education (years) | 15.57±2.88 | 15.74±2.90 | 14.88±2.70 | 0.90 (0.82, 0.98) |
| Employment Status | 390 (77.69%) | 318 (79.10%) | 72 (72.00%) | 0.67 (0.40, 1.12) |
| Full-time (ref= part- time) | ||||
| Ethnicity | 371 (73.61%) | 301 (74.50%) | 70 (70.00%) | 0.83 (0.51, 1.35) |
| White (ref =Non- white) | ||||
| Gender | 428 (84.92%) | 338 (83.66%) | 90 (90.00%) | 1.73 (0.85, 3.51) |
| Female (ref= male) | ||||
| Health Insurance | 488 (97.21%) | 394 (98.01%) | 94 (94.00%) | 0.32 (0.11, 0.96) |
| Yes (ref= no) | ||||
| Marital Statusa | 329 (65.54%) | 262 (65.01%) | 67 (67.68%) | 1.36 (0.73, 2.52) |
| Married (ref=other) | ||||
| Marital Statusa | 79 (15.74%) | 62 (15.38%) | 17(17.17%) | 1.40 (0.64, 3.05) |
| Never Married (ref =other) | ||||
| Anthropometric | ||||
| BMI(kg/m2) | 33.83±4.18 | 33.46±4.15 | 35.30±4.01 | 1.11 (1.06, 1.18) |
| Waist Circumference (cm) | 105.26±12.80 | 104.61±12.81 | 107.89±12.48 | 1.02 (1.00, 1.04) |
| Psychosocial | ||||
| BHE | 61.47±14.00 | 61.21±14.18 | 62.52±13.25 | 1.01 (0.99, 1.02) |
| BES | 15.58±7.67 | 15.04±7.53 | 17.73±7.89 | 1.05 (1.02, 1.08) |
| BDI | 7.68±7.00 | 7.13±6.99 | 9.54±6.75 | 1.05 (1.01, 1.09) |
| HSS | 28.78±5.39 | 29.23±5.22 | 27.30±5.71 | 0.93 (0.89, 0.98) |
| MOS SF36-Mental | 49.00±9.96 | 49.45±9.84 | 47.18±10.28 | 0.97 (0.95, 1.00) |
| MOS SF36-Physical | 51.74±7.02 | 51.87±6.94 | 51.24±7.32 | b |
|
| ||||
| WEL | ||||
| Availability | 16.68±8.35 | 16.66±8.48 | 16.77±7.93 | 1.00 (0.97, 1.03) |
| Negative Emotions | 18.81±9.47 | 19.22±9.34 | 17.33±9.86 | 0.98 (0.95, 1.01) |
| Physical Discomfort | 24.92±7.54 | 25.11±7.40 | 24.23±8.06 | 0.98 (0.95, 1.02) |
| Positive Activities | 24.31±7.34 | 24.58±7.10 | 23.36±8.12 | b |
| Social Pressure | 22.18±8.58 | 22.00±8.63 | 22.81±8.42 | 1.01 (0.98, 1.04) |
| WEL Total | 106.90±33.37 | 107.57±33.17 | 104.51±34.21 | b |
| History of Weight Loss/Gain | ||||
| Intentionally lost 50–79 lbs. | 422 (86.48%) | 347 (88.07%) | 75 (79.79%) | 0.52 (0.29, 0.95) |
| Never (ref=1 or more times) | ||||
a
Missing data reported: completers (n=403); non-completers (n=99)
b
This variable interacted with trial (p<.05).
Note: SD: Standard deviation; CI: Confidence Interval; BES: Binge Eating Scale; HSS: Hunger Satiety Scale; WEL: Weight Efficacy Lifestyle; MOS-SF-36v2: Medical Outcomes Survey-Short Form36; BHE: Barriers to Health Eating BDI: Beck Depression Inventory-II