TABLE 2.
Statistical comparison for sex, age, T1-T2 interval, ANB, chin and maxillary deviation between crossbite and non-crossbite groups and craniofacial variables between both craniofacial sides at baseline (T1)
| Crossbite group (n = 25) | non-crossbite group (n = 26) | 95% CI of mean diff | |||||
|---|---|---|---|---|---|---|---|
| Mean | SD | Mean | SD | Mean Diff | P value | ||
| Sex (Female/Male)a | 17/8 | 14/12 | .393 | ||||
| Age (y)b | 6.68 | 1.47 | 7.41 | 1.31 | −0.63 | −1.45;0.18 | .128 |
| T1-T2 (y)b | 1.30 | 0.23 | 1.42 | 0.24 | −0.10 | −0.25; 038 | .145 |
| Maxillary/Mandibular | |||||||
| ANB (°)b | 3.86 | 2.24 | 4.93 | 2.44 | −1.07 | −2.39;0.25 | .110 |
| Chin deviation | |||||||
| Me-MSP (mm)b | 1.61 | 1.12 | 1.11 | 0.84 | 0.49 | −0.06;1.05 | .080 |
| Maxillary deviation | |||||||
| ANS-MSP (mm)b | 0.77 | 0.67 | 1.00 | 0.81 | −0.23 | −0.65;0.19 | .277 |
a
Chi-square test.
b
t test for independent samples (P < .05).
c
Effect size low—0.2.
d
Effect size medium—0.50.
e
Effect size high—0.80.