Totals for subject characteristics. Values are mean (SD) unless otherwise specified.
| Items | Total | |||
|---|---|---|---|---|
| JIA, n = 39 | JDM, n = 14 | CF, n = 12 | Total, n = 67 | |
| Age, yrs | 14.3 (2.0) | 15.5 (2.0) | 14 (2.1) | 14.6 (2.1) |
| Sex, n | ||||
| Male | 9 | 5 | 9 | 24 |
| Female | 30 | 9 | 3 | 43 |
| Medical status | ||||
| Disease severity, out of 100 | 22 (24) | 20 (24) | 15 (16) | 21 (23) |
| CHAQ, out of 10 | 0.23 (0.36) | 0.1 (0.1) | 0.1 (0.1) | 0.23 (0.36) |
| CHAQ illness VAS | 1.7 (2.2) | 0.8 (1.6) | 0.8 (1.7) | 1.5 (2.0) |
| CHAQ pain VAS | 1.7 (2.2) | 1.2 (2.3) | 1.2 (2.3) | 1.4 (2.2) |
| CHAQ QOL VAS | 1.4 (2.1) | 0.7 (1.3) | 0.7 (1.3) | 1.3 (1.9) |
| Psychosocial | ||||
| Self-efficacy | 3.1 (0.6) | 3.1 (0.8) | 2.9 (0.8) | 3.0 (0.7) |
| Decisional balance, pros | 3.8 (0.9) | 3.6 (0.8) | 2.8 (0.9) | 3.6 (1.0) |
| Decisional balance, cons | 2.3 (0.9) | 2.2 (0.9) | 2.0 (0.7) | 2.3 (0.8) |
| Process of change, behavioral | 3.2 (0.7) | 3.1 (0.7) | 2.5 (0.6) | 3.0 (0.7) |
| Process of change, cognitive | 3.2 (0.7) | 3.0 (0.6) | 2.6 (0.7) | 3.1 (0.8) |
| Physical activity, mins | ||||
| Sedentary | 469 (72) | 544 (75) | 470 (68) | 483 (77) |
| Light | 184 (59) | 177 (62) | 217 (46) | 189 (58) |
| Moderate | 21 (13) | 20 (12) | 23 (9) | 21 (12) |
| Vigorous | 10 (11) | 9 (7) | 9 (7) | 10 (10) |
| MVPA | 34 (24) | 31 (18) | 34 (14) | 33 (21) |
JIA: juvenile idiopathic arthritis; JDM: juvenile dermatomyositis; CF: cystic fibrosis; CHAQ: Childhood Health Assessment Questionnaire; VAS: visual analog scale; QOL: quality of life; pros: advantages; cons: disadvantages; MVPA: moderate and vigorous physical activity.