Subject characteristics for the action and maintenance stages. Values are mean (SD) unless otherwise specified.
| Items | Action | Maintenance | ||||||
|---|---|---|---|---|---|---|---|---|
| JIA, n = 4 | JDM, n = 0 | CF, n = 3 | Total, n = 7 | JIA, n = 20 | JDM, n = 6 | CF, n = 4 | Total, n = 30 | |
| Age, yrs | 14.7 (1.7) | — | 16 (1.7) | 15.3 (1.7) | 13.8 (2.2) | 14.7 (2.7) | 15 (1.3) | 14.2 (2.2) |
| Sex, n | ||||||||
| Male | 2 | — | 2 | 4 | 4 | 2 | 2 | 8 |
| Female | 2 | — | 1 | 3 | 16 | 4 | 2 | 22 |
| Medical status | ||||||||
| Disease severity, out of 100 | 21 (34) | — | 29 (2.8) | 45 (34) | 26 (26) | 16 (20) | 5.8 (6.0) | 14 (17) |
| CHAQ, out of 10 | 0.28 (0.56) | — | — | 0.16 (0.43) | 0.21 (0.27) | 0.1 (0.1) | — | 0.16 (0.24) |
| CHAQ illness VAS | 1.0 (1.5) | — | 3.4 (0.4) | 2.0 (1.7) | 2.1 (2.7) | 0.2 (0.4) | 0.2 (0.2) | 1.5 (2.4) |
| CHAQ pain VAS | 0.7 (0.8) | — | 1.4 (1.3) | 0.98 (1.0) | 2.3 (2.9) | 0.1 (0.2) | 0.2 (0.2) | 1.6 (2.5) |
| CHAQ QOL VAS | 1.1 (2.0) | — | 4.2 (1.3) | 2.4 (2.3) | 1.6 (2.5) | 0.2 (0.4) | 0.2 (0.2) | 1.3 (2.1) |
| Psychosocial | ||||||||
| Self-efficacy | 3.1 (0.9) | — | 2.9 (0.3) | 3.0 (0.7) | 3.3 (0.5) | 3.5 (0.9) | 3.3 (1.1) | 3.3 (0.7) |
| Decisional balance, pros | 3.9 (0.7) | — | 2.6 (1.0) | 3.3 (1.0) | 4.0 (1.0) | 3.9 (1.1) | 3.3 (0.7) | 3.8 (1.0) |
| Decisional balance, cons | 2.2 (0.5) | — | 1.9 (0.5) | 2.1 (0.5) | 2.1 (0.7) | 1.6 (0.6) | 1.5 (0.6) | 1.9 (0.7) |
| Process of change, behavioral | 2.8 (1.2) | — | 2.6 (0.4) | 2.6 (0.8) | 3.5 (0.7) | 3.3 (0.5) | 3.0 (0.7) | 3.4 (0.7) |
| Process of change, cognitive | 2.9 (1.0) | — | 2.5 (0.2) | 2.7 (0.7) | 3.6 (0.7) | 3.4 (0.6) | 3.2 (0.7) | 3.5 (0.7) |
| Physical activity, mins | ||||||||
| Sedentary | 540 (62) | — | 498 (38) | 522 (54) | 447 (66) | 541 (78) | 481 (40) | 465 (71) |
| Light | 234 (45) | — | 188 (54) | 214 (51) | 192 (66) | 212 (79) | 199 (33) | 196 (63) |
| Moderate | 26 (7) | — | 11 (4) | 19 (10) | 21 (12) | 25 (7) | 30 (4) | 23 (11) |
| Vigorous | 12 (5) | — | 1 (0.4) | 7 (7) | 12 (14) | 14 (7) | 9 (5) | 12 (13) |
| MVPA | 39 (12) | — | 13 (5) | 28 (17) | 35 (25) | 40 (13) | 42 (3) | 36 (22) |
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.