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Table 2 Comparison between BR and GR groups

From: Prediction of Class II improvement after rapid maxillary expansion in early mixed dentition

  BR group GR group  
Mean SD Mean SD P
Age 8.32 1.10 8.29 1.06 0.945
SNA (°) 81.65 2.57 80.60 4.33 0.457
SNB (°) 76.79 2.01 75.01 4.62 0.223
ANB (°) 4.87 2.32 5.38 1.96 0.520
ANPg (°) 4.18 2.43 4.78 2.28 0.497
Wits (mm) 1.97 3.88 1.03 2.76 0.447
OVJ (mm) 6.82 3.53 5.04 1.94 0.091
AnsPns^GoGn (°) 22.83 3.31 24.29 4.67 0.356
SN^GoGn (°) 30.18 3.16 33.23 5.44 0.092
OVB (mm) 3.22 1.94 2.74 1.74 0.496
Ar^Go^N (°) 55.26 3.48 53.01 2.36 0.048*
N^Go^Me (°) 70.28 3.69 71.84 4.78 0.354
N^S^Ar (°) 125.38 3.95 124.94 4.97 0.804
S^Ar^Go (°) 140.85 4.22 144.66 4.81 0.036*
Sum. Jaraback (°) 391.77 3.58 394.46 6.79 0.222
Co-Gn (mm) 103.68 5.83 95.36 6.31 0.001**
S-Ar (mm) 32.59 3.75 28.93 3.18 0.008**
Ar-Go (mm) 41.17 3.99 37.49 2.75 0.006**
Go-Me (mm) 63.36 5.45 57.63 5.05 0.006**
  1. Data are shown as mean and SDs. Student’s t test was used to assess significance of the differences between groups, and significance levels are shown in P column
  2. BR bad responder, GR good responder
  3. *P < 0.05, **P < 0.01