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Table 3 Multiple linear regression analysis (forward method) for age prediction by the studied variables

From: The accuracy of age estimation from pulp chamber/crown volume ratio of canines obtained by cone beam computed tomography images: an Egyptian study

Model Unstandardized Coefficients Standardized Coefficients t P value 95.0% Confidence Interval for B
B Std. Error Beta Lower Bound Upper Bound
  (Constant) 70.21 .652   107.763 < 0.001* 68.923 71.493
Maxillary PCV/CV ratio − 784.0 41.264 − .654 − 19.000 < 0.001* − 865.385 − 702.634
Maxillary PCV (mm3) − 1.66 .165 − .347 − 10.069 < 0.001* − 1.982 − 1.333
  1. *Significant at p < 0.05