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Table 8 The mean difference between the estimated age (EA) and the calendric age (CA) in all the four groups between genders

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

Group Difference between estimated age and calendric age (EA-CA) Sig.*
Boys Girls
Mean SD Mean SD
I –0.82 0.39 –0.79 0.55 0.886
II –0.91 0.48 –1.19 0.38 0.297
III –1.39 0.27 –0.93 0.54 0.800
IV –1.45 0.33 –1.42 0.4 0.892
Total –1.12 0.46 –1.04 0.515 0.564
  1. *Significant at p<0.05, SD standard deviation