From: Reliability of mathematical regression models for age estimation in the mixed dentition stage for Egyptian children
Group I (n = 1000) n (%)
Group II (n = 115) n (%)
6—< 9 years
513 (51.3%)
84 (73%)
Male
250 (48.7%)
40 (48%)
Female
263 (51.3%)
44 (52%)
9—14 years
487 (48.7%)
31 (27%)
234 (48%)
18 (58%)
253 (52%)
13 (42%)