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Table 4 Descriptive statistics and statistical comparisons (independent-samples t tests) of the final forms (cephalometric values at T2)

From: Dentoskeletal effects of early class III treatment protocol based on timing of intervention in children

Variables Prepubertal Pubertal Diff P value 95% CI of the difference
Mean SD Mean SD Lower Upper
SNA (°) 80.2 3.2 80.5 3.9  − 0.3 0.803  − 2.5 1.9
SNB (°) 78.6 3.7 79.1 3.4  − 0.5 0.605  − 2.8 1.7
ANB (°) 1.6 2.3 1.4 3.1 0.2 0.865  − 1.5 1.8
Wits (mm)  − 1.6 2.3  − 2.6 4.4 1 0.374  − 1.2 3.0
Co-Gn (mm) 101.9 5.2 106.8 6.5  − 4.9 0.010*  − 8.4  − 1.2
SN-Pal. Pl. (°) 7.5 3.0 8.4 3.3  − 0.9 0.367  − 2.9 1.1
SN-GoMe (°) 35.4 6.9 37.0 6.0  − 1.6 0.424  − 5.7 2.5
Pal. Pl.-Mand.Pl (°) 27.8 5.9 28.6 5.3  − 0.8 0.676  − 4.3 2.8
ArGoMe (°) 130.3 5.7 131.4 5.7  − 1.1 0.560  − 4.6 2.5
Pal. Pl.-Occl. Pl. (°) 9.2 3.1 7.9 3.2 1.3 0.213  − 0.7 3.2
Occl. Pl.-Mand. Pl. (°) 18.7 4.9 20.7 3.6  − 2 0.156  − 4.7 0.8
I^SN (°) 108.0 7.5 105.8 6.3 2.2 0.313  − 2.2 6.6
I^Pal. Pl. (°) 64.5 8.4 66.7 5.9  − 2.2 0.355  − 6.8 2.5
IMPA (°) 83.7 9.2 82.3 7.3 1.4 0.609  − 3.9 6.6
  1. The bold indicates the statistical significance
  2. *P < 0.05; SD standard deviations; Diff. difference; CI confidence interval; Pal. palatal; Pl. plane; Mand. mandibular; Occl. occlusal