Results from final regression models showing coefficients (95% confidence interval) for independent variables associated with SF-36 subscales and summary scales. Only mental health and mental health summary were normally distributed, log 10 transformation was performed for other scales before entering the regression analysis.
| Physical Function | Role Limitation Due to Physical Problems | Bodily Pain | General Health | Physical Health Summary | Vitality | Social Function | Role Limitation Due to Emotional Problems | Mental Health | Mental Health Summary | |
|---|---|---|---|---|---|---|---|---|---|---|
| Age (per year) | −0.37 (−0.63, −0.11) | −0.32 (−0.56, −0.07) | −0.13 (−0.22 to −0.04) | |||||||
| SLEDAI score (per unit, 0–105) | −1.1 (−2.0, −0.7) | |||||||||
| SDI score (per unit, 0–47) | −4.8 (−7.6, −2.1) | −5.7 (−10.2, −1.2) | −2.6 (−4.8, −0.4) | −1.5 (−2.4 to −0.5) | −2.7 (−5.2, −0.1) | −5.7 (−10.3, −1.0) | ||||
| Number of flares | −19.1 (−28.6, −9.6) | |||||||||
| Musculoskeletal flare | −22.5 (−38.1, −6.9) | −34.2 (−49.2, −19.1) | −13.2 (−26.1, −0.3) | −9.2 (−14.6 to −3.7) | −13.0 (−25.4, −0.5) | −30.0 (−44.7, −15.4) | −32.8 (−59.5, −6.1) | −8.1 (−15.1, −1.2) | ||
| Adjusted R2 | 0.097 | 0.069 | 0.078 | 0.056 | 0.114 | 0.014 | 0.065 | 0.038 | – | 0.018 |