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Table 2 Mean differences between two repeated ratings performed by 12 raters and one-sample t test testing if the mean difference is significantly different from 0 (systematic error; P < 0.01)

From: Facial esthetic outcome of functional followed by fixed orthodontic treatment of class II division 1 patients

 tdfSig. (two-tailed)Mean differenceSD95% confidence interval of the difference
LowerUpper
All raters
 Face2.201430.0293.9421.420.417.46
 Lower face0.321430.7460.6724.61− 3.394.72
 Upper lip0.551430.5840.9620.91− 2.494.40
 Lower lip0.481430.6291.0826.73− 3.325.48
 Chin− 0.321430.749− 0.6825.38− 4.863.50
Orthodontists
 Face1.22350.2313.8518.97− 2.5710.27
 Lower face0.53350.6001.9421.97− 5.509.37
 Upper lip0.55350.5841.8720.32− 5.008.75
 Lower lip1.31350.2004.3219.84− 2.3911.04
 Chin0.57350.5741.9921.02− 5.139.10
Patients
 Face0.83350.4103.3924.39− 4.8711.64
 Lower face− 0.64350.524− 3.3531.15− 13.897.20
 Upper lip− 0.75350.458− 2.9423.53− 10.905.02
 Lower lip− 0.73350.470− 4.8039.44− 18.158.55
 Chin− 1.18350.248− 6.9835.58− 19.015.06
Parents
 Face1.30350.2024.1819.30− 2.3510.71
 Lower face0.35350.7251.3021.94− 6.138.72
 Upper lip0.21350.8320.6919.50− 5.917.29
 Lower lip− 0.55350.583− 2.0021.65− 9.325.33
 Chin− 0.98350.333− 3.1419.20− 9.633.36
Laypersons
 Face1.11350.2744.3323.38− 3.5812.24
 Lower face0.73350.4692.7822.72− 4.9110.46
 Upper lip1.24350.2234.2020.30− 2.6711.07
 Lower lip2.01350.0526.7920.28− 0.0713.66
 Chin1.51350.1395.4221.49− 1.8512.69