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Table 2 Results of regression analysis to predict annual change in total anterior face height

From: Predicting changes in mandibular length and total anterior facial height using IGF-1, cervical stage, skeletal classification, and gender

Independent variables Parameter estimate Error p value
Intercept 6.08452 8.35131 0.47
Average IGF-1 in μg/L 0.00929 0.0061 0.14
IGF-1 change in μg/L 0.01033 0.00437 0.02
Initial total anterior facial height in mm −0.06665 0.07285 0.37
Male (female is the reference group) 1.75912 0.97007 0.08
Skeletal class I (reference group) Reference   
Skeletal class II 0.30974 1.00557 0.76
Skeletal class III 1.89294 1.46272 0.20
Cervical group A −0.88972 1.22983 0.47
Cervical group B 2.45562 1.42716 0.09
Cervical group C (reference group) Reference   
  1. R-square: 0.4228. p value for the model: 0.0095.