Table 3.
Bivariate associations between pubertal development trajectories, BMI trajectories and adult height, and adult body composition, in male and female participants of the Birth-to-twenty Plus cohort study.
| Variables | Males | Females | ||
|---|---|---|---|---|
| N | Coefficient (SE) | N | Coefficient (SE) | |
| Fat mass | ||||
| Pubertal development trajectories | ||||
| 1 - Slowest | 123 | Reference | 90 | Reference |
| 2 | 187 | 0.07 (0.05) | 129 | 0.11 (0.05)* |
| 3 | 129 | 0.17 (0.05)** | 144 | 0.08 (0.05) |
| 4 - Fastest | 58 | 0.15 (0.07)* | 122 | 0.27 (0.05)** |
| BMI trajectories | ||||
| 0 | 419 | Reference | 350 | Reference |
| 1 | 22 | 0.59 (0.08)** | 44 | 0.28 (0.06)** |
| 2 | 5 | 0.86 (0.17)** | 13 | 0.28 (0.10)** |
| 3 | N/A | 18 | 0.64 (0.09)** | |
| Height at 23 years | 482 | 0.01 (0.003)** | 470 | 0.01 (0.003) |
| Fat free mass | ||||
| Pubertal development trajectories | ||||
| 1 - Slowest | 126 | Reference | 96 | Reference |
| 2 | 197 | 0.02 (0.02) | 134 | 0.02 (0.02) |
| 3 | 136 | 0.03 (0.02)* | 153 | 0.02 (0.02) |
| 4 - Fastest | 59 | 0.04 (0.02) | 127 | 0.09 (0.02)** |
| BMI trajectories | ||||
| 0 | 436 | Reference | 368 | Reference |
| 1 | 23 | 0.07 (0.03)* | 45 | 0.05 (0.02)* |
| 2 | 5 | 0.24 (0.06)** | 14 | 0.10 (0.04)** |
| 3 | N/A | 19 | 0All values are linear regression coefficients with standard errors in parentheses; Significance.20 (0.03)** | |
| Height at 23 years | 503 | 0.01 (0.003)** | 494 | 0.01 (0.003)** |
All values are linear regression coefficients with standard errors in parentheses; Significance levels: **p < 0.01, *p < 0.05. Males BMI trajectories: (0) normal weight, (1) early onset overweight to normal and (2) early onset overweight to obese; Females BMI trajectories: (0) normal weight, (1) late onset overweight (2), early onset obesity to overweight and (3) early onset obesity to morbid obese.