Table 2.
Mean (SD) scores, ranges, possible ranges and interpretation of the variables included in the theoretical model
| Questionnaire | n | Mean (SD) | Range | Possible range | Interpretation |
|---|---|---|---|---|---|
| Constructs | |||||
| Appraisal | |||||
| GSES | n = 262 | 30.5 (4.7) | 11–40 | 10–40 | Higher values indicate more self-efficacy |
| ICQ-helplessness | n = 263 | 16.9 (3.3) | 9–23 | 6–24 | Higher values indicate less helplessnessa |
| ICQ-acceptation | n = 263 | 15.1 (3.8) | 6–24 | 6–24 | Higher values indicate more acceptation |
| Participation | |||||
| IPA autonomy indoors | n = 263 | 3.2 (0.6) | 1–4 | 0–4 | Higher values indicate better participationa |
| IPA family role | n = 263 | 2.5 (0.7) | 0.7–4 | 0–4 | |
| IPA autonomy outdoors | n = 263 | 2.3 (0.7) | 0.4–4 | 0–4 | |
| IPA social life and relationships | n = 263 | 3.0 (0.5) | 1.1–4 | 0–4 | |
| IPA work and education | n = 253 | 2.1 (0.8) | 0–4 | 0–4 | |
| Confounding variables | |||||
| CIS20r-fatigue | n = 264 | 43.4 (7.6) | 14–56b | 8–56 | Higher values indicate more fatigue |
| CIS20r-concentration | n = 264 | 20.9 (7.6) | 5–35 | 5–35 | Higher values indicate more concentration problems |
| EDSS median, (ICQ1–ICQ3) | n = 255 | 2.5 (2.0–3.5) | 0–6c | 0–10 | Higher scores indicate more disease severity |
| SF36-physical functioning | n = 265 | 59.0 (23.9) | 0–100 | 0–100 | Higher values indicate better physical functioning |
| SF36-mental health | n = 262 | 67.1 (13.2) | 24–92 | 0–100 | Higher values indicate better mental health |
| Mediating coping styles | |||||
| CISS21 task-oriented | n = 263 | 24.3 (4.8) | 7–35 | 7–35 | Higher values indicate a stronger tendency to a certain coping style |
| CISS21 emotion-oriented | n = 263 | 18.0 (6.1) | 7–31 | 7–35 | |
| CISS21 avoidance-oriented | n = 264 | 18.7 (4.8) | 7–31 | 7–35 |
CIS20r, Checklist Individual Strength; CISS21, Coping Inventory Stressful Situations; EDSS, Expanded Disability Status Scale; GSES, General Self-Efficacy Scale; ICQ, Illness Cognition Questionnaire; ICQ1–3, Interquartile; IPA, Impact on Participation and Autonomy; SF36, Short Form 36
aScores are reversed for interpretation
bCIS20r fatigue enrollment scores differed incidentally from baseline scores used in this article; CIS20r-fatigue = 14 appeared in 1 participant
cUsed as an inclusion criterion; EDSS 0–6