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Table 4 Inter-rater reliability for prevalence of positive hypermobility findings for total score and for single-joints

From: Inter- and intra-rater reliability for measurement of range of motion in joints included in three hypermobility assessment methods

Total score/single joint

Prevalence of positive findings

Agreement

Reliability

Prevalence Index

Bias Index

Rater A

Rater B

Prevalence of positive findings (%)

n (%)

n (%)

Kappa (95% Cl)

Prevalence-adjusted bias-adjusted kappa-value (95% Cl)

BS ≥ 4

3 (6)

4 (8)

94

0.54 (0.26–0.82)

0.88 (0.66–0.97)

0.86

0.02

BS ≥ 5

2 (4)

1 (2)

98

0.66 (0.39–0.92)

0.96 (0.78–1.00)

0.94

−0.02

HdM ≥ 4

13 (27)

11 (22)

92

0.78 (0.50–1.06)

0.84 (0.61–0.95)

0.51

0.04

HdM ≥ 5

7 (14)

8 (16)

94

0.76 (0.48–1.04)

0.88 (0.66–0.97)

0.69

0.02

CS ≥ 30

18 (37)

14 (29)

80

0.54 (0.26–0.81)

0.59 (0.31–0.80)

0.35

−0.08

5th Finger, left

11 (22)

7 (14)

92

0.73 (0.46–1.00)

0.84 (0.61–0.95)

0.63

0.08

5th Finger, right

7 (14)

4 (8)

94

0.70 (0.43–0.96)

0.88 (0.66–0.97)

0.78

−0.06

Thumb, left

11 (22)

11 (22)

100

1.00 (0.72–1.28)

1.00 (0.79–1.00)

0.55

0.00

Thumb, right

7 (14)

6 (12)

98

0.91 (0.63–1.19)

0.96 (0.78–1.00)

0.73

−0.02

Elbow, left

8 (16)

5 (10)

82

0.21 (−0.06–0.48)

0.63 (0.36–0.82)

0.73

−0.06

Elbow, right

7 (14)

7 (14)

88

0.50 (0.22–0.78)

0.76 (0.50–0.91)

0.71

0.00

Shoulder, left

1 (2)

2 (4)

98

0.66 (0.39–0.92)

0.96 (0.78–1.00)

0.94

0.02

Shoulder, right

5 (10)

4 (8)

94

0.63 (0.36–0.91)

0.88 (0.66–0.97)

0.82

−0.02

Calcaneus, left

30 (61)

22 (45)

76

0.52 (0.26–0.79)

0.51 (0.22–0.73)

− 0.06

0.16

Calcaneus, right

28 (57)

19 (39)

73

0.49 (0.22–0.75)

0.47 (0.18–0.70)

0.04

−0.18

Ankle, left

7 (14)

11 (22)

80

0.33 (0.06–0.60)

0.59 (0.31–0.80)

0.63

0.08

Ankle, right

6 (12)

11 (22)

86

0.51 (0.25–0.77)

0.71 (0.46–0.88)

0.65

0.10

Big toe, left

31 (63)

35 (71)

84

0.63 (0.36–0.91)

0.67 (0.41–0.85)

−0.35

0.08

Big toe, right

28 (57)

32 (65)

84

0.66 (0.38–0.93)

0.67 (0.41–0.85)

−0.22

0.08

Knee extension, left

3 (6)

6 (12)

90

0.40 (0.13–0.66)

0.80 (0.56–0.93)

0.82

0.06

Knee extension, right

1 (2)

5 (10)

92

0.31 (0.11–0.51)

0.84 (0.61–0.95)

0.88

0.08

Knee flexion, left

39 (80)

37 (76)

92

0.77 (0.49–1.04)

0.84 (0.61–0.95)

−0.55

− 0.04

Knee flexion, right

38 (78)

36 (73)

92

0.78 (0.50–1.06)

0.84 (0.61–0.95)

− 0.51

− 0.04

Trunk flexion

12 (24)

11 (22)

98

0.94 (0.66–1.22)

0.96 (0.78–1.00)

0.53

−0.02

Patella, left

4 (8)

4 (8)

100

1.00 (0.72–1.28)

1.00 (0.79–1.00)

0.84

0.00

Patella, right

4 (8)

5 (10)

98

0.88 (0.60–1.16)

0.96 (0.78–1.00)

0.82

0.02

Hip abduction, left

0 (0)

0 (0)

NA

NA

NA

  

Hip abduction, right

0 (0)

0 (0)

NA

NA

NA

  
  1. The hypermobility instruments used in this study were: BS Beighton score, CS Contompasis score, HdM Hospital del Mar, NA Not applicable, none of the participants reached the cut off limit