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Table 6 Concurrent validity test for the modified OIDP scores between different categories of related outcome variables (n = 220)

From: Oral impact on daily performance (OIDP) scale for use in Sri Lankan adolescents: a cross sectional modification and validation study

Variable

N

Mean

(SD)

P value*

Perceived oral treatment need

 Yes

82

2.60

3.85

0.003

 No

103

1.56

4.00

 Don’t know

35

2.08

3.91

Perceived oral health problems

 None

145

0.96

1.45

< 0.001

 Little

56

3.27

5.71

 Moderate

15

5.41

5.91

 Severe

4

10.96

2.45

 Very severe

0

–

–

  1. *Kruksal-Wallis test was performed