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Demographics of the BB and SBJA groupsa.
| Variables | SBJA (n = 11, 5f, 6m) | BB (n = 16, 9f, 7m) | p | ||
|---|---|---|---|---|---|
| mean | SD | mean | SD | ||
| Age T1, y | 11 | 1.9 | 10.10 | 1.6 | NS |
| Age T2, y | 12.6 | 1.7 | 12.5 | 1.5 | NS |
| T2-T1, y | 1.6 | 0.6 | 1.7 | 0.4 | NS |
Descriptive statistics and statistical comparisons at T1 and T2 (independent-samples t-tests); aT1 indicates before treatment; T2 indicates immediately after removal of the functional appliances; NS: not significant.
