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Egyptian Journal of Forensic Sciences

Table 2 Comparison of mean chronological age with mean estimated age by dental, skeletal, and BDI methods

From: Correlation of skeletal age by Greulich-Pyle atlas, physiological age by body development index, and dental age by London Atlas and modified Demirjian’s technique in children and adolescents of an Eastern Indian population

CA

Mean ± SD (SE)

13.95 ± 2.44 (0.21)

Method

Mean ± SD (SE)

Mean difference

95% CI

t

p

MDA

14.25 ± 2.78(0.24)

 − 0.31

 − 0.57 to 0.04

 − 2.28

0.02

GP

14.38 ± 2.4(0.21)

 − 0.43

 − 0.6 to 0.26

 − 5.12

 < 0.001

LAM

14.56 ± 2.71(0.23)

 − 0.62

 − 0.83 to 0.4

 − 5.73

 < 0.001

BDI

14.46 ± 3.31(0.28)

 − 0.51

 − 0.88 to 0.14

 − 2.7

0.008

  1. CA chronological age, SD standard deviation, SE standard error, CI class interval, MDA Acharya’s modified Demirjian method, GP Greulich-Pyle, LAM London Atlas method, BDI body development index
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