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Table 4 Self-reported physical function and physical activity for the three definitions of generalized joint hypermobility (GJH) for children at the age of 14

From: Generalized joint hypermobility in childhood is a possible risk for the development of joint pain in adolescence: a cohort study

  GJH4 GJH5 GJH6
Variable < GJH4 ≥ GJH4 p-value < GJH5 ≥ GJH5 p-value < GJH6 ≥ GJH6 p-value
(n = 171) (n = 130)   (n = 217) (n = 84)   (n = 237) (n = 64)  
1 RAOS-child , mean (sd)          
Symptoms (n = 299) 88.55 (11.04) 86.10 (12.51) 0.16 87.82 (11.80) 86.67 (11.60) 0.39 87.73 (11.90) 86.68 (11.15) 0.34
Pain (n = 293) 89.53 (10.08) 87.01 (10.81) 0.02* 88.97 (10.31) 87.09 (10.80) 0.10 88.77 (10.56) 87.24 (10.07) 0.12
ADL (n = 293) 96.00 (6.22) 94.47 (5.84) 0.002* 95.70 (6.17) 94.44 (5.84) 0.012* 95.54 (6.20) 94.64 (5.67) 0.06
Sport (n = 296) 87.59 (14.08) 84.31 (16.57) 0.07 86.62 (14.91) 85.09 (16.14) 0.42 86.37 (15.17) 85.60 (15.61) 0.56
QOL (n = 297) 82.57 (14.45) 78.52 (17.47) 0.06 81.36 (15.66) 79.42 (16.61) 0.30 81.00 (16.10) 80.16 (15.37) 0.43
Subjective Pain Disabilities (SPD), n (%)          
Pain disturbing sleeping (n = 299) 10 (5.8) 9 (7.0) 0.68 15 (6.9) 4 (4.9) 0.52 15 (6.4) 4 (6.3) 1.00
Pain disturbing sitting during class (n = 298) 11 (6.4) 23 (18.1) 0.002* 19 (8.8) 15 (18.5) 0.018* 24 (10.2) 10 (16.1) 0.19
Paint disturbing walking > 1 km (n = 297) 26 (15.2) 25 (19.8) 0.30 36 (16.6) 15 (18.8) 0.66 40 (16.9) 11 (18.0) 0.84
Pain disturbing physical exercise class (n = 299) 35 (20.5) 36 (28.1) 0.12 49 (22.6) 22 (26.8) 0.44 56 (23.7) 15 (23.8) 0.99
Pain disturbs hobbies (n = 299) 27 (15.8) 28 (21.9) 0.18 38 (17.5) 17 (20.7) 0.52 42 (17.8) 13 (20.6) 0.61
Physical activity          
2Sports active, leisure time, (n = 298), n (%) 137 (80.6) 105 (82.0) 0.75 173 (80.1) 69 (84.1) 0.42 190 (80.9) 52 (82.5) 0.76
3Activity level (n = 245), n (%)    0.88    0.25    0.13
Elite 32 (22.9) 22 (21.0)   40 (22.7) 14 (20.3)   44 (22.8) 10 (19.2)  
Sub elite 44 (31.4) 36 (34.3)   52 (29.5) 28 (40.6)   57 (29.5) 23 (44.2)  
Exercise level 64 (45.7) 47 (44.8)   84 (47.7) 27 (39.1)   92 (47.7) 19 (36.5)  
4Hours per week (n = 299), median (range) 3.00 (0–23) 3.75 (0–27) 0.70 3.00 (0–23) 4.00 (0–27) 0.25 3.00 (0–23) 4.00 (0–27) 0.12
  1. 1RAOS score, with 100 indicating no problems and 0 indicating severe problems. 2Sports active is based on the question: ‘Do you do any sports in you spare time?’ Rated as yes/no. 3Activity level is based on the question: ‘At what level are you practising you primary sports activity?’ With the answering categories: Sub elite, elite or exercise level. 4Hours per week is based on the question: ‘How many hours a week are you practicing your primary sports activity?’ Measured as the group average.
  2. Methods/Hypothesis testing: RAOS, Physical activity (hours per week): Mann–Whitney u-test; SPD, Physical activity: X 2 (Pearson’s). Significant difference between groups are marked with *and written with bold.