Table 1 Demography of children with four definitions of GJH for test rounds 2012 and 2013
Children with GJH on both test rounds (group 1a, n = 36) | Children with GJH and knee hypermobility on both test rounds (group 1b, n = 26) | Children with GJH in both test rounds with a fluctuation of 1 point in BT score (group 2a, n = 119) | Children with GJH on both test rounds with a fluctuation of 1 point in BT score and knee hypermobility (group 2b, n = 56) | |
|---|---|---|---|---|
Participants (no. boys/girls) | 7/29 | 6/20 | 40/67 | 17/31 |
Age (yrs) | ||||
Test round 1 | 10.7 ± 1.3 | 10.7 ± 1.3 | 10.9 ± 1.4 | 11.13 ± 1.4 |
Height (cm) | ||||
Test round 1 | 148.7 ± 10.6 | 148.7 ± 11.7 | 149.9 ± 10.1 | 150.9 ± 11.5 |
Test round 2 | 154.5 ± 10.2 | 154.3 ± 11.3 | 155.5 ± 9.7 | 156.5 ± 10.6 |
Growth | ||||
Test round 2 - Test round 1 | 5.8 ± 1.8 | 5.5 ± 1.7 | 5.6 ± 1.8 | 5.5 ± 1.8 |
Body mass (kg) | ||||
Test round 1 | 38.5 ± 8.9 | 38.7 ± 9.7 | 40.8 ± 10.3 | 42.2 ± 12.2 |
Test round 2 | 42.8 ± 10.3 | 42.7 ± 11.2 | 43.8 ± 10.1 | 44.7 ± 10.5 |
BMI (kg/m 2 ) | ||||
Test round 1 | 17.2 ± 2.2 | 17.2 ± 2.3 | 17.9 ± 2.7 | 17.2 ± 2.3 |
Test round 2 | 17.6 ± 2.7 | 17.7 ± 2.9 | 17.8 ± 2.5 | 18.1 ± 2.6 |
School type | ||||
(no. control/intervention) | 9/27 | 6/20 | 46/73 | 21/35 |
Sports participation units (times/week) | 1.6 ± 1.2 | 1.6 ± 1.2 | 1.4 ± 1.1 | 1.6 ± 1.2 |