Table 6 Construct validity and criterion validity of OIDP questionnaire scores in relation with clinical measures on the sample (n = 403)

Prosthetics needs reported

Kruskal Wallis

Khi² = 21.96

[0,0-2,0-2,0]

<0.001

No need

103 (23.6)

27.91

[0,0-0,0-1,0]

<0.001

on 01 maxillary

53 (13.02)

2.19

[0,0-0,0-0,0]

0.134

on 02 maxillaries

246 (61.00)

34.02

[0,0-1,0-1,0]

<0.001

Dental pain reported

Mann & Whitney

0.59 (0.739)

[0,0-0,0-1,0]

<0.001

No pain

227 (56.3)

12.18 (14.35)

[0,0-1,0-1,0]

Medium dental pain

115 (28.5)

26.15 (17.92)

[0,0-0,0-1,0]

Perceived difficulty to eat

Mann & Whitney

0.60 (0.49)

<0.001

No difficulty to eat

162 (40.2)

Poor oral health

241 (59.8)

[0,0-1,0-1,0]