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Table 3 Reliability (Cohen’s Kappa values) of DC/TMD diagnoses compared to the reference standard examiner

From: Diagnostic criteria for temporomandibular disorders: self-instruction or formal training and calibration?

 

Course

Self

Self + course

Diagnosis

Median

Range

Median

Range

Median

Range

Pain-related TMD and headache

      

Myalgia

0.91

(0.88 - 1.00)

0.65

(0.50 - 0.75)

1.00

(0.82 - 1.00)

Local myalgia

0.84

(0.71 - 1.00)

n.a.

n.a.

0.43

(0.14 - 0.70)

Myofascial pain with referral

0.76

(0.60 - 0.81)

0.62

(0.35 - 0.70)

0.26

(0.07 - 0.70)

Arthralgia

0.66

(0.42 - 0.87)

0.47

(0.47 - 0.60)

0.74

(0.62 - 0.81)

Headache attributed to TMD

0.84

(0.70 - 0.86)

0.82

(0.60 - 1.00)

1.00

(0.87 - 1.00)

Intra-articular joint disorders

      

Degenerative joint disease

0.66

(0.66 - 0.92)

0.81

(0.71 - 0.81)

0.73

(0.73 - 0.81)

Disc displacement with reduction

0.44

(0.24 - 0.61)

0.52

(0.35 - 0.84)

0.73

(0.73 - 0.81)

  1. DC/TMD = Diagnostic criteria for temporomandibular disorders. n.a. = not applicable (due to prevalence = 0). The diagnosis Myalgia is the diagnoses Local myalgia and Myofascial pain with referral combined to be used in general practice.