Skip to main content

Table 3 Evaluation of validity of the Swedish 5PQ

From: Self-rated joint hypermobility: the five-part questionnaire evaluated in a Swedish non-clinical adult population

5PQ score

Sensitivity (%) (95% CI)

Specificity (%) (95% CI)

PPV (%) (95% CI)

NPV (%) (95% CI)

BS according to present hypermobility with an age-dependent cut-off scorea

= 0/5

100.00 (85.18, 100.00)

0.00 (0.00, 1.40)

8.10 (8.10, 8.10)

≥ 1/5

95.65 (78.05, 99.89)

34.10 (28.37, 40.20)

11.34 (10.16, 12.64)

98.89 (92.85, 99.84)

≥ 2/5b

91.30 (71.96, 98.93)

74.71 (68.98, 79.87)

24.14 (19.96, 28.88)

98.98 (96.28, 99.73)

≥ 3/5

56.52 (34.49, 76.81)

91.57 (87.52, 94.64)

37.14 (25.67, 50.27)

95.98 (93.74, 97.45)

≥ 4/5

30.43 (13.21, 52.92)

97.32 (94.55, 98.92)

50.00 (27.75, 72.25)

94.07 (92.37, 95.42)

= 5/5

0.00 (0.00, 14.82)

99.62 (97.88, 99.99)

0

91.87 (91.82, 91.93)

BS according to present hypermobility ≥ 4/9a

= 0/5

100.00 (92.45, 100.00)

0.00 (0.00, 1.54)

16.55 (16.55, 16.55)

≥ 1/5

85.11 (71.69, 93.80)

35.02 (28.96, 41.46)

20.62 (18.24, 23.21)

92.22 (85.42, 96.00)

≥ 2/5b

72.34 (57.36, 84.38)

77.64 (71.79, 82.78)

39.08 (32.31, 46.30)

93.40 (89.87, 95.76)

≥ 3/5

42.55 (28.26, 57.82)

93.67 (89.78, 96.41)

57.14 (42.45, 70.67)

89.16 (86.51, 91.33)

≥ 4/5

17.02 (7.65, 30.81)

97.47 (94.57, 99.07)

57.14 (32.66, 78.56)

85.56 (83.86, 87.10)

= 5/5

0.00 (0.00, 7.55)

99.58 (97.67, 99.99)

0

83.39 (83.28, 83.51)

  1. 5PQ The Five-part questionnaire on hypermobility
  2. BS Beighton Score
  3. PPV Positive predictive value
  4. NPV Negative predictive value
  5. a The Swedish 5PQ was tested against two different criteria of the reference standard test: 1) a present Beighton Score with an age-dependent cut-off of ≥5/9 for individuals 18–50 years and ≥ 4/9 for individuals > 50 years and 2) a present BS with the traditional cut-off of ≥4/9
  6. b The recommended cut-off score for generalised joint hypermobility on the 5PQ [4]