Table 4 Test characteristics of the TMJ protocol for different cut-off points; assessments by the rheumatologist

Protocol score

at least 1 pos score (n)

34

40

JADAS-27 (sd)

2.0 (2.98)

5.0 (7.13)

0.029

JADAS-27 ≥ 2

0.65

0.55

0.55

0.65

JADAS-27 ≥ 3.8

0.65

0.51

0.38

0.77

Protocol score

at least 2 pos scores (n)

49

25

JADAS-27 (sd)

2.2 (3.12)

6.39 (8.36)

0.003

JADAS-27 ≥ 2

0.47

0.78

0.64

0.63

JADAS-27 ≥ 3.8

0.57

0.77

0.52

0.80

Protocol score

at least 3 pos score (n)

60

14

JADAS-27 (sd)

2.37(3.14)

8.94 (10.2)

 < 0.001

JADAS-27 ≥ 2

0.41

0.85

0.70

0.63

JADAS-27 ≥ 3.8

0.52

0.84

0.60

0.80

Protocol score|

at least 4 pos scores (n)

64

10

JADAS-27 (sd)

3.31 (5.69)

5.56 (6.26)

0.306

JADAS-27 ≥ 2

0.18

0.90

0.60

0.56

JADAS-27 ≥ 3.8

0.22

0.90

0.50

0.72