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. 2015 May 18;27(3):131–136. doi: 10.1016/j.sdentj.2015.01.002

Table 2.

Estimated age deviation (from real age) frequency by age group.

Age deviation
(in months)
Age group (in years)
N (%)
4–6 7–9 10–12 13–15 16+ Total
0–6 8 (30.8) 20 (38.5) 15 (27.8) 7 (14.3) 10 (14.3) 60 (24.2)
−1 to −6 5 (19.2) 9 (17.3) 9 (16.7) 11 (22.4) 9 (12.9) 43 (17.1)
7–12 4 (15.4) 5 (9.6) 10 (18.5) 1 (2.0) 3 (4.3) 23 (9.1)
−7 to −12 0 3 (5.8) 10 (18.5) 11 (22.4) 14 (20.0) 38 (15.1)
13–18 3 (11.5) 9 (17.3) 3 (5.6) 3 (6.1) 5 (7.1) 23 (9.1)
−13 to −18 4 (15.4) 1 (1.9) 5 (9.3) 6 (12.2) 3 (4.3) 19 (7.5)
>19 2 (7.7) 4 (7.7) 0 1 (2.0) 9 (12.9) 16 (6.3)
<−19 0 1 (1.9) 2 (3.7) 9 (18.4) 17 (24.3) 29 (11.5)



Total 26 (100) 52 (100) 54 (100) 49 (100) 70 (100 251 (100)

Percentage in each age group.