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Table 4 Discriminant construct validity: CPQ overall and domain scores by the RDC/TMD diagnosis and "supercontrol" groups

From: Evaluating oral health-related quality of life measure for children and preadolescents with temporomandibular disorder

  

RDC/TMD Diagnosis Group (n = 32)

Supercontrol Group (n = 28)

  
  

Mean (SD)

Mean (SD)

P *

ES †

CPQ8-10

Overall scale [0-100]

25.6 (22.3)

7.5 (7.8)

< 0.0001

0.61

 

Subscales

    
 

   Oral symptoms [0-20]

8.7 (4.6)

3.5 (3.4)

< 0.0001

0.87

 

   Functional limitations [0-20]

4.8 (4.7)

1.3 (1.9)

< 0.0001

0.58

 

   Emotional well-being [0-20]

4.7 (5.2)

1.1 (1.7)

0.000

0.50

 

   Social well-being [0-40]

7.4 (9.6)

1.7 (3.1)

0.006

0.54

  

RDC/TMD Diagnosis Group (n = 69)

Supercontrol Group (n = 29)

  
  

Mean (SD)

Mean (SD)

P*

ES †

CPQ11-14

Overall scale [0-148]

35.0 (24.1)

11.7 (9.6)

< 0.0001

0.88

 

Subscales

    
 

   Oral symptoms [0-24]

8.7 (5.8)

4.2 (2.1)

< 0.0001

0.74

 

   Functional limitations [0-26]

8.8 (7.0)

2.2 (2.9)

< 0.0001

0.89

 

   Emotional well-being [0-36]

10.0 (8.9)

3.1 (4.1)

< 0.0001

0.73

 

   Social well-being [0-52]

7.5 (6.8)

2.1 (3.4)

< 0.0001

0.82

  1. TMD, temporomandibular disorder; CPQ, child perceptions questionnaire
  2. Values in square brackets indicate range of possible scores
  3. * P-values obtained from Mann-Whitney test
  4. † ES = Effect sizes, difference in group means/pooled SD
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Health and Quality of Life Outcomes

ISSN: 1477-7525

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