Table 3.
Strata | Trajectory | Trajectory Name | N | Predicted Probability CRP >2 (95% CI) | Overall P Valuea | Group Differencesb | Interaction P Valuec |
---|---|---|---|---|---|---|---|
Men, y | |||||||
18 to <30 | 1 | Initial weight loss | 81 | 0.07 (0.04–0.15) | 0.001 | 3 4 | 0.83 |
2 | Stable, low weight | 545 | 0.11 (0.08–0.15) | 3 4 | |||
3 | Steep weight gain | 251 | 0.18 (0.13–0.25) | 1 2 | |||
4 | Steepest weight gain | 41 | 0.25 (0.14–0.42) | 1 2 | |||
30 to <40 | 1 | Initial weight loss | 47 | 0.15 (0.07–0.28) | 0.30 | No group differences observed | 0.18 |
3 | Stable low weight | 307 | 0.17 (0.12–0.23) | ||||
2 | Stable weight gain | 363 | 0.17 (0.12–0.23) | ||||
4 | Steep weight gain | 120 | 0.23 (0.15–0.33) | ||||
5 | Steepest weight gain | 15 | 0.35 (0.15–0.63) | ||||
40 to 66 | 1 | Initial weight loss | 27 | 0.19 (0.08–0.37) | 0.71 | No group differences observed | 0.66 |
2 | Stable low weight | 259 | 0.19 (0.14–0.26) | ||||
3 | Stable weight gain | 390 | 0.18 (0.13–0.23) | ||||
4 | Steep weight gain | 137 | 0.22 (0.15–0.30) | ||||
5 | Steepest weight gain | 36 | 0.25 (0.13–0.42) | ||||
Women, y | |||||||
18 to <30 | 1 | Weight loss | 87 | 0.03 (0.01–0.09) | <0.0001 | 2 3 4 5 6 | 0.43 |
2 | Maintenance | 322 | 0.12 (0.08–0.17) | 1 4 6 | |||
3 | Stable weight gain | 344 | 0.14 (0.10–0.19) | 1 6 | |||
5 | Weight gain and loss | 43 | 0.13 (0.05–0.28) | 1 6 | |||
4 | Steep weight gain | 121 | 0.20 (0.13–0.30) | 1 2 6 | |||
6 | Steepest weight gain | 18 | 0.78 (0.53–0.92) | 1 2 3 4 5 | |||
30 to <40 | 1 | Weight loss | 24 | 0.18 (0.07–0.37) | 0.006 | 0.10 | |
2 | Maintenance | 153 | 0.11 (0.07–0.17) | 4 6 | |||
3 | Stable weight gain | 520 | 0.16 (0.12–0.19) | 4 6 | |||
4 | Steep weight gain | 311 | 0.23 (0.18–0.29) | 2 3 | |||
6 | Steepest weight gain | 39 | 0.32 (0.19–0.50) | 2 3 | |||
5 | Weight gain and loss | 22 | 0.16 (0.05–0.40) | ||||
40 to 66 | 1 | Weight loss | 38 | 0.21 (0.12–0.36) | 0.0002 | 4 | 0.29 |
2 | Maintenance | 439 | 0.19 (0.15–0.23) | 3 4 | |||
3 | Stable weight gain | 374 | 0.27 (0.23–0.32) | 2 4 | |||
4 | Steepest weight gain | 44 | 0.48 (0.33–0.63) | 1 2 3 |
Overall test of trajectory significance in full models adjusted for baseline weight (quadratic), height (averaged across repeated measures), smoker status (ever/never) and current number of cigarettes (both for men only), and a random intercept for community.
Numbers indicate groups that were significantly different in pairwise comparison tests. For example, for men aged 18 to 30, group 1 differed significantly from groups 3 and 4.
Likelihood ratio test for interaction effects between baseline weight (measured linearly).