Table 3.
Bivariate associations between participant characteristics and class membership using model based assignments of individuals to their most likely class and growth mixture models with covariates.
| Variable | All (n=604) |
Pattern 1 (n=519) |
Pattern 2 (n=61) |
Pattern 3 (n=24) |
GMM Wald Chi-square test statistic (df) p-value |
Fisher’s Exact or F test statistic (p-value) |
|---|---|---|---|---|---|---|
| N(%) unless otherwise indicated | ||||||
| Tria | ne | ne <0.1 (<0.001) | ||||
| HELP | 128 (21) | 118 (23) | 10 (16) | 0 (0) | ||
| SHARE | 309 (51) | 247 (48) | 39 (64) | 23 (96) | ||
| Think Health! | 167 (28) | 154 (30) | 12 (20) | 1 (4) | ||
| Low intensity intervention | 183 (30) | 168 (32) | 12 (20) | 3 (13) | 6.5 (2) 0.040 | <0.1 (0.018) |
| Age, mean (sd) | 46.8 (10.0) | 46.8 (10.2) | 46.2 (9.1) | 47.5 (8.6) | 0.1 (2) 0.968 | 0.1 (0.870) |
| Female | 540 (89) | 466 (90) | 52 (85) | 22 (92) | 0.4 (2) 0.834 | <0.1 (0.491) |
| Baseline weight, mean (sd) | 102.4 (18.8) | 101.4 (18.3) | 104.1 (19.7) | 120.0 (18.2) | 10.2 (2) 0.006 | 11.9 (<0.001) |
| BMI, mean (sd) | 37.3 (6.0) | 37.0 (5.8) | 37.9 (6.3) | 43.5 (5.8) | 17.9 (2) <0.001 | 14.5 (<0.001) |
| BMI group | 5.0 (4) 0.289 | <0.1 (<0.001) | ||||
| <35 | 250 (41) | 225 (43) | 23 (38) | 2 (8) | ||
| 35–40 | 169 (28) | 145 (28) | 19 (31) | 5 (21) | ||
| >=40 | 185 (31) | 149 (29) | 19 (31) | 17 (71) | ||
| Employed | 494 (82) | 421 (81) | 53 (87) | 20 (83) | 3.5 (2) 0.175 | <0.1 (0.601) |
| Number in household, mean (sd) | 3.2 (1.6) | 3.2 (1.6) | 3.3 (1.5) | 3.0 (2.0) | 0.6 (2) 0.735 | 0.4 (0.642) |
| Married | 278 (46) | 228 (44) | 36 (59) | 14 (61) | 2.5 (2) 0.286 | <0.1 (0.029) |
| Current smoker | 85 (14) | 75 (15) | 8 (13) | 2 (8) | 0.2 (2) 0.911 | <0.1 (0.804) |
| Current drinker | 165 (27) | 148 (29) | 14 (23) | 3 (13) | 3.7 (2) 0.160 | <0.1 (0.171) |
| Physical activity | 5.0 (4) 0.286 | <0.1 (0.501) | ||||
| High | 162 (27) | 136 (26) | 17 (28) | 9 (38) | ||
| Moderate | 252 (42) | 215 (42) | 29 (48) | 8 (33) | ||
| Low | 184 (31) | 163 (32) | 14 (23) | 7 (29) | ||
| Excellent self rated health | 137 (23) | 112 (22) | 15 (25) | 10 (42) | 4.9 (2) 0.088 | <0.1 (0.075) |
| Positive medical history | 400 (66) | 343 (66) | 43 (70) | 14 (58) | 1.0 (2) 0.595 | <0.1 (0.540) |
| Heart disease | 52 (9) | 47 (9) | 3 (5) | 2 (8) | 0.8 (2) 0.673 | <0.1 (0.600) |
| Lung disease | 107 (18) | 95 (18) | 11 (18) | 1 (4) | 2.7 (2) 0.258 | <0.1 (0.220) |
| Mobility limitations | 202 (33) | 170 (33) | 24 (39) | 8 (33) | 0.4 (2) 0.812 | <0.1 (0.572) |
| High blood pressure | 260 (43) | 223 (43) | 26 (43) | 11 (46) | 1.5 (2) 0.479 | 0.017 (0.965) |
| Diabetes | 79 (13) | 69 (13) | 6 (10) | 4 (17) | 1.9 (2) 0.396 | 0.025 (0.623) |
| Cohen Stress Score, mean (sd) | 5.2 (3.1) | 5.2 (3.0) | 5.2 (3.5) | 4.5 (2.9) | 1.1 (2) 0.572 | 0.7 (0.484) |
| Any prior weight loss programs | 333 (56) | 279 (54) | 34 (56) | 20 (87) | 6.0 (2) 0.050 | <0.1 (0.006) |
| Number prior weight loss programs | 1.2 (4) 0.885 | <0.1 (0.058) | ||||
| 0 | 268 (45) | 237 (46) | 27 (44) | 4 (17) | ||
| 1–2 | 271 (45) | 226 (44) | 28 (46) | 17 (71) | ||
| 3+ | 62 (10) | 53 (10) | 6 (10) | 3(13) | ||
| SisterTalk Food Habits Score, mean (sd) | 2.6 (0.6) | 2.7 (0.6) | 2.5 (0.6) | 2.1 (0.5) | 149.3 (2) <0.001 | 7.9 (<0.001) |
| Desired weight, mean lbs (sd) | 150.8 (39.9) | 150.3 (40.1) | 157.1 (38.7) | 145.4 (39.1) | 2.2 (2) 0.333 | 1.0 (0.362) |
| Desired BMI, mean (sd) | 24.9 (6.1) | 24.9 (6.2) | 26.0 (5.8) | 24.0 (6.3) | 3.9 (2) 0.145 | 1.2 (0.306) |