Table 1 Demography by the three definitions of generalized joint hypermobility (GJH)

Age, median (range)

14 (13–15)

14 (13–15)

0.13

14 (13–15)

14 (13–15)

0.24

14 (13–15)

14 (13–15)

0.61

¹BMI, mean (sd)

20.02 (2.62)

20.57 (2.77)

0.08

19.95 (2.52)

21.03 (2.98)

0.004*

20.03 (2.62)

21.07 (2.85)

0.006*

Gender, no. of girls, n (%)

75 (43.9)

73 (56.2)

0.04 ^a, *

100 (46.1)

48 (57.1)

0.09^a

109 (46.0)

39 (60.9)

0.03 ^a, *

Musculoskeletal health, n (%)

Arthralgia in 1–3 joints (> 3 months), (n = 301)

9 (5.3)

10 (7.7)

0.39^a

12 (5.5)

7 (8.3)

0.37^a

14 (5.9)

5 (7.8)

0.58^a

Arthralgia in >4 joints (> 3 months), (n = 300)

4 (2.3)

8 (6.2)

0.14^b

6 (2.8)

6 (7.1)

0.08^a

7 (3.0)

5 (7.8)

0.08^a

²Dislocation/subluxation, (n = 293)

10 (5.8)

9 (6.9)

0.70^a

11 (5.1)

8 (9.5)

0.15^a

13 (5.5)

6 (9.4)

0.26^a

³Soft tissue rheumatism, (n = 293)

5 (2.9)

5 (3.8)

0.66^a

6 (2.8)

4 (4.8)

0.47^b

8 (3.4)

2 (3.1)

1.00^b