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Table 10 Dental health component of the IOTN: frequencies by age

From: Prevalence of malocclusions, oral habits and orthodontic treatment need in a 7- to 15-year-old schoolchildren population in Tirana

IOTN 1 2 3 4 5 Total
  n(%) n(%) n(%) n(%) n(%) n(%)
7 45 (14.7) 53 (13.7) 97 (11.5) 66 (6.8) 8 (7.9) 269 (10.3)
8 20 (6.5) 44 (11.4) 97 (11.5) 73 (7.5) 7 (6.9) 241 (9.2)
9 29 (9.4) 59 (15.3) 83 (9.8) 110 (11.3) 7 (6.9) 288 (11.0)
10 27 (8.8) 43 (11.1) 90 (10.6) 100 (10.2) 12 (11.9) 272 (10.4)
11 28 (9.1) 25 (6.5) 92 (10.9) 135 (13.8) 7 (6.9) 287 (11.0)
12 35 (11.4) 47 (12.2) 95 (11.2) 106 (10.9) 10 (9.9) 293 (11.2)
13 44 (14.3) 31 (8.0) 92 (10.9) 124 (12.7) 15 (14.9) 306 (11.7)
14 48 (15.6) 40 (10.4) 98 (11.6) 143 (14.7) 17 (16.8) 346 (13.2)
15 31 (10.1) 44 (11.4) 103 (12.2) 119 (12.2) 18 (17.8) 315 (12.0)
Total 307 (100.0) 386 (100.0) 847 (100.0) 976 (100.0) 101 (100.0) 2,617 (100.0)