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Table 4 Discriminant validity of the OHIP-14 based on the clinical status of the subjects.

From: Validation of a Greek version of the oral health impact profile (OHIP-14) for use among adults

Variable (number of cases)

OHIP-14

Mean (S.D.*)

Test

Number of teeth:

  

< 25 teeth

17.3 (11.3)

Mann-Whitney

≥ 25 teeth

12.4 (7.6)

P < 0.01

Number of decayed teeth:

  

Dt < 2

13.7 (9.4)

Mann-Whitney

Dt ≥ 2

18.2 (10.7)

P < 0.05

Number of missing teeth:

  

Mt < 8

12.8 (8.0)

Mann-Whitney

Mt ≥ 8

17.7 (11.5)

P < 0.01

Number of filled teeth:

  

Ft < 6

16.3 (10.9)

Mann-Whitney

Ft ≥ 6

12.8 (7.7)

P < 0.05

Oral Hygiene Index (OHI-s) distribution

  

OHΙ-s = 0.0-1.2 (good oral hygiene)

11.9 (8.5)

Kruskall-Wallis

OHΙ-s = 1.3-3.0 (fair oral hygiene)

16.0 (9.6)

P < 0.01

OHΙ-s = 3.1-6.0 (poor oral hygiene)

18.8 (10.7)

 
  1. S.D. = Standard Deviation