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Table 6 Discriminant validity: Median (IQR) of the CPQ and its domains, by gender, family affluence, self-reported rating of caries experience and malocclusion

From: Modification and psychometric evaluation of the child perceptions questionnaire (CPQ11–14) in assessing oral health related quality of life among Lithuanian children

 

n

Domain

Total CPQ

OS

FL

EWB

SWB

Gender

 boys

128

16.67 (16.7)

3.70 (7.4)

3.70 (14.8)

0 (2.6)

5.41 (9.2)

 girls

179

16.67 (16.7)

3.70 (11.1)

7.40 (18.5)

0 (5.1)

6.31 (10.8)

pa

 

0.993

0.386

0.007

0.084

0.016

Family affluence:

 low

32

22.22 (22.2)

3.70 (21.3)

14.81 (29.6)

1.28 (10.3)

11.26 (16.2)

 middle

105

22.22 (22.2)

3.70 (11.1)

7.41 (18.5)

0 (5.1)

7.21 (12.2)

 high

162

16.67 (22.2)

3.70 (7.4)

3.70 (14.8)

0 (2.6)

4.51 (9.0)

pa

 

0.159

0.340

0.010

0.047

0.009

Self-reported rating of caries experience:

 'healthy’

207

16.7 (16.7)

3.7 (11.1)

3.7 (14.8)

0 (2.6)

5.4 (10.8)

 'not healthy’

98

22.2 (22.2)

7.4 (14.8)

11.1 (25.9)

0 (5.1)

8.1 (13.1)

pa

 

< 0.001

0.007

0.013

0.356

< 0.001

Self-reported rating of malocclusion:

 'healthy’

136

16.7 (22.2)

3.7 (10.2)

3.7 (11.1)

0 (2.6)

5.4 (8.1)

 'not healthy’

170

22.2 (22.2)

3.7 (14.8)

9.3 (25.9)

0 (5.1)

8.1 (12.6)

pa

 

0.009

0.119

< 0.001

0.076

< 0.001

  1. aMedian test, underlined values indicate a significant difference between medians in groups