Table 3. Mean and standard deviation of reference standard and predicted bone ages for different age groups in the internal testing dataset.

(Months)	Public model predictions	Bağcılar model predictions	Combined model predictions	Reference standard
0–36	46.8 ± 27.3	30.6 ± 11.2	31.6 ± 10.8	29.9 ± 6.4
36–72	71.6 ± 17.6	64.2 ± 19.5	57.8 ± 14.1	60.6 ± 9.8
72–108	105.9 ± 19.9	103.3 ± 18.2	97.3 ± 18.1	96.6 ± 9.2
108–144	131.8 ± 16.1	126.4 ± 15.9	128.5 ± 14.7	130.5 ± 9.1
144–180	162.2 ± 16.5	155.5 ± 19.5	163.2 ± 17.9	162.6 ± 9.2
180–216	194.8 ± 14.4	189.0 ± 16.2	199.8 ± 15.2	198.6 ± 9.3