Table 4.
Linear regression models for the association between SLE diagnosis and PCS and MCS before and after adjusting for potential confounders
| Model | Variable | PCS | p | MCS | p |
|---|---|---|---|---|---|
| 1 | Overall model | – | <0.01 | – | 0.70 |
| SLE | −10.4 | <0.01 | −1.0 | 0.70 | |
| 2 | Overall model | – | <0.01 | – | 0.99 |
| SLE | −4.1 | 0.07 | −1.8 | 0.59 | |
| Age (per 1 year) | 0.0 | 0.99 | 0.83 | ||
| Currently working | 4.5 | 0.07 | 0.3 | 0.93 | |
| Disabled | −9.8 | <0.01 | 0.6 | 0.87 | |
| Years of education (per 1 year) | −0.1 | 0.73 | 0.4 | 0.49 | |
| Has medical insurance | −1.4 | 0.67 | 1.8 | 0.72 | |
| Hypertension | −3.5 | 0.10 | 0.8 | 0.79 | |
| History of depression | −0.9 | 0.70 | −0.4 | 0.91 | |
| 3 | Overall model | – | 0.03 | – | 0.98 |
| SLE | −4.8 | 0.04 | −1.1 | 0.72 | |
| Age (per 1 year) | 0.0 | 0.77 | 0.0 | 0.91 | |
| Currently working | 3.9 | 0.13 | 1.0 | 0.77 | |
| Years of education (per 1 year) | 0.2 | 0.70 | 0.2 | 0.71 | |
| Has medical insurance | 1.0 | 0.79 | 3.3 | 0.49 | |
| Hypertension | −6.5 | 0.03 | −2.5 | 0.54 | |
| History of depression | 6.5 | 0.04 | 2.2 | 0.63 |
The difference in PCS and MCS and the p-value for the Wald test are presented for each variable, plus the overall model significance. Model 3 is restricted to those who are not disabled.