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Table 2 Reliability (Cohen’s Kappa) of the TMJ screening protocol assessments and prevalence of findings

From: Temporomandibular joint involvement in Juvenile Idiopathic Arthritis: reliability and validity of a screening protocol for the rheumatologist

 

Cohen’s Kappa

Prevalence RE (%)

Prevalence Rheumatologist (%)

History

 

Problems in chewing

0.46

10

16

Eating slower than others

0.45

14

22

Biting hard food

0.64

14

18

Pain while eating

0.83

14

15

Limited mouth opening

0.87

11

14

Examination

 

MMO limited*

0.42

12

15

Crepitation (audible)

0.0

5

7

Pain MMO

0.73

18

11

Deviation MMO (>2 mm)

0.31

7

15

Inspection

 

Asymmetry

0.25

22

19

Retrognathia

0.25

16

8

TMJ involv. RE vs Rha

0.46

54

51

ICC MMO Rh vs RE

0.61 (p < 0.01)

  

Δ MMORh - MMORE ≤7 mm [n (%)]

50 (67.6%)

  

μ Δ MMO Rh vs RE [mm]

0.9 (p = 0.35)

  
  1. History related items (n = 5), examination related items (n = 4), and inspection related items (n = 2) compose the screening protocol. Intraclass correlation of the rheumatologist and the reference examiner.
  2. RE: reference examiner. ICC: intraclass coefficient.
  3. *MMO limited: ≤ 35 mm (≤10 yrs); ≤ 40 mm (>10 yrs); a TMJ involvement based on the criterion ‘at least 1 positive score. μ = mean, p value Δ MMO (Students t-test)
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Pediatric Rheumatology

ISSN: 1546-0096