Age (years) | 16.0 (1.7) | 15.5 (1.6) | 0.5 (−0.1 to 1.2) |
Gender (% girls) | 88 | 60 | 28 (9 to 45) |
Median illness duration in months (range) | 27 (6–192) | NA | |
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Mean total hours physical exercise per week (h/wk) | 2.3 (3.3) | 8.0 (3.9) | −5.7 (−7.2 to −4.2) |
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School type level 1 (%) | 19 | 20 | 0 (−15 to 16) |
School type level 2 (%) | 81 | 80 | 0 (−15 to 16) |
Minimal school absence (less than 5% last 6 months) (n (%)) | 4 (13) | 149 (89) | −76 (−89 to −65) |
Considerable school absence (5–50%) (n (%)) | 19 (59) | 18 (11) | 48 (35 to 62) |
Almost complete school absence (50–100%) (n (%)) | 9 (28) | 0 | 28 (21 to 35) |
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Fatigue assessment: Checklist Individual Strength | | | |
(20 items, 7-point Likert scale) | 45.2 (11.0) | 22.9 (11.0) | 22.2 (18.0 to 26.4) |
Total score subscale subjective fatigue (8 items) | 21.6 (8.7) | 15.2 (7.0) | 6.3 (3.0 to 9.6) |
Total score subscale concentration (5 items) | 13.5 (5.2) | 9.0 (4.0) | 4.5 (2.5 to 6.4) |
Total score subscale motivation (4 items) | 14.4 (4.9) | 7.4 (3.8) | 7.1 (5.3 to 8.9) |
Total score subscale physical activity (3 items) | | | |
| | | |
Self-reported sporting activities | | | |
Mothers, % active on outdoor sports | 47 | 76 | −29 (−46 to −12) |
Fathers, % active on outdoor sports | 47 | 62 | −15 (−34 to 4) |
Prevalence (%) of self-reported fatigue in parents | | | |
Fatigue in mothers | 56 | 21 | 35 (6 to 64) |
Fatigue in fathers | 13 | 17 | −4 (−19 to 11) |