Comparison among SSc patients, their rheumatologists and their GPs based on seven illness perception dimensions
| ICC, patients–rheumatologists (n111) | Patients (n=111), mean (SD) | Rheumatologists (n=111), mean (SD) | Cohen’s d | ICC, patients–GPs (n=74) | Patients (n=75), mean (SD) | GPs (n=75) Mean (SD) | Cohen’s d | ICC, rheumatologists–GPs (n=77) | Rheumatologists (n=77), mean (SD) | GPs (n=77), mean (SD) | Cohen’s d | |
| Consequences | 0.339** | 18.5 (4.8) | 22.4 (5.7) | 0.61 | 0.424*** | 18.0 (4.7) | 22.2 (4.6) | 0.80 | 0.628‡*** | 23.2 (5.3) | 22.2 (4.6) | 0.19 |
| Timeline acute/chronic | 0.078 | 24.9 (4.0) | 25.9 (3.2) | 0.20 | −0.047 | 24.7 (4.1) | 27.5 (2.7) | 0.56 | 0.134 | 26.2 (3.2) | 27.5 (2.6) | 0.31 |
| Personal control | 0.166 | 17.1 (3.4) | 17.9 (4.2) | 0.16 | 0.575*** | 16.9 (3.6) | 16.1 (4.3) | 0.18 | 0.371* | 17.9 (4.6) | 16.2 (4.3) | 0.31 |
| Treatment control | −0.040 | 14.9 (2.6) | 16.6 (2.6) | 0.44 | 0.168 | 15.0 (2.4) | 16.7 (2.3) | 0.55 | 0.108 | 16.4 (2.8) | 16.7 (2.4) | 0.09 |
| Illness coherence | 0.320* | 15.8 (3.8) | 16.1 (4.0) | 0.07 | 0.439** | 15.5 (4.1) | 17.5 (3.4) | 0.44 | 0.295* | 15.2 (4.3) | 17.5 (3.5) | 0.46 |
| Timeline cyclical | 0.058 | 14.2 (3.2) | 12.9 (2.9) | 0.31 | 0.170 | 13.9 (3.1) | 12.9 (2.2) | 0.29 | −0.191 | 12.6 (2.7) | 12.8 (2.2) | 0.04 |
| Emotional representations | 0.319* | 18.1 (5.2) | 19.7 (5.1) | 0.24 | 0.040 | 18.4 (5.7) | 18.0 (4.5) | 0.05 | 0.313* | 19.9 (5.1) | 18.0 (4.5) | 0.31 |
*P≤0.05.
**P≤0.01.
***P≤0.001.
GP, general practitioner; ICC, intraclass correlation coefficient.