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Table 8 Dental health component of the IOTN: prevalence in the total sample ( n = 2,617)

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

IOTN grade Number Percentage Confidence interval inferior (%) Confidence interval superior (%)
1 307 11.7 8.1 15.3
2 386 14.7 11.2 18.3
3 847 32.4 29.2 35.5
4 976 37.3 34.3 40.3
5 101 3.9 0.1 7.6
Total 2,617 100.0 100.0 100.0