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Table 9 Dental health component of the IOTN: frequencies by gender

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

IOTN Males Females Chi-square test
  n(%) n(%) Chi-square P
1 133 (10.6) 174 (12.8) 2.880 0.090
2 188 (15.0) 198 (14.6) 0.053 0.817
3 417 (33.2) 430 (31.6) 0.654 0.419
4 464 (36.9) 512 (37.6) 0.121 0.728
5 55 (4.4) 46 (3.4) 1.479 0.224