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Table 5 The regression equations derived using the age as the dependent variable and the CTR as the independent variable

From: Does the crypt: tooth ratio in the developing tooth correlate with chronological age in children?—a novel, radiographic, cross-sectional pilot study using ImageJ tools

Subjects n Regression equations r2 SEE Sig.
Boys 72 1. Age = 17.894–4.166 (CTR) 0.839 1.285 0.000
Girls 73 2. Age = 16.646–3.611 (CTR) 0.785 1.463 0.000
Overall 145 3. Age = 17.192–3.855 (CTR) 0.807 1.385 0.000
  1. *Significant at p<0.05. SEE standard error of the estimate; CTR crypt to tooth ratio