Table 2 Comparison of missing data for two samples
| Â | Sample with DPA 6y | Sample with all timepoints | ||||||
|---|---|---|---|---|---|---|---|---|
N | Mean (SD) | N | Mean (SD) | |||||
Valid | Missing | Valid | Missing | Valid | Missing | Valid | Missing | |
Sex (boy) | 515 | 137 | 51.5% | 54.7% | 169 | 483 | 52.7% | 52.0% |
Int. (I-group) | 515 | 137 | 59.2% | 52.6% | 169 | 483 | 63.9% | 55.7% |
Age (baseline) | 481 | 129 | 6.28 (0.35) | 6.36 (0.36)* | 168 | 442 | 6.29 (0.34) | 6.30 (0.36) |
W/H 6y | 478 | 121 | 0.21 (0.03) | 0.21 (0.03) | 159 | 440 | 0.21 (0.03) | 0.21 (0.03) |
W/H 9y | 487 | 123 | 0.24 (0.04) | 0.24 (0.04) | 169 | 483 | 0.24 (0.03) | 0.24 (0.04) |
W/H 13y | 367 | 74 | 0.31 (0.05) | 0.31 (0.04) | 169 | 483 | 0.31 (0.05) | 0.31 (0.05) |
DPA 6y | Â | Â | Â | Â | 169 | 346 | 8.57 (3.30) | 8.58 (3.41) |
MVPA 6y | 398 | 100 | 76.00 (26.84) | 78.57 (22.67) | 169 | 329 | 77.49 (25.85) | 76.02 (26.18) |
MVPA 9y | 364 | 88 | 72.90 (23.85) | 72.29 (23.75) | 169 | 283 | 73.93 (25.53) | 72.09 (22.74) |
MVPA 13y | 278 | 47 | 54.80 (22.23) | 54.73 (25.88) | 169 | 156 | 54.11 (20.53) | 55.52 (24.98) |
MC 6y | 474 | 127 | 121.05 (26.99) | 116.10 (27.50) | 169 | 432 | 124.28 (25.73) | 118.33 (27.53)* |
MC 9y | 481 | 120 | 196.24 (34.22) | 190.73 (36.46) | 169 | 432 | 202.33 (31.45) | 192.33 (35.56)* |
MC 13y | 357 | 72 | 249.82 (29.34) | 246.69 (29.87) | 169 | 260 | 251.48 (28.73) | 247.87 (29.83) |