| Quality of life | ||||
---|---|---|---|---|---|
 | Estimate | SE | 95 % CI | P-value | |
Income | Â | Â | Â | Â | Â |
  Low | −3.3404 | 0.2728 | −3.875 | −2.806 | <.0001 |
  Middle | −1.4308 | 0.2253 | −1.872 | −0.989 | <.0001 |
  High | ref |  |  |  |  |
Education | Â | Â | Â | Â | Â |
  Low | −4.4015 | 0.3285 | −5.045 | −3.758 | <.0001 |
  Middle | −1.1785 | 0.2378 | −1.645 | −0.712 | <.0001 |
  High | ref |  |  |  |  |
Subjective social class | Â | Â | Â | Â | Â |
  Low | −4.7276 | 0.2228 | −5.164 | −4.291 | <.0001 |
  Middle | −1.8744 | 0.2450 | −2.355 | −1.394 | <.0001 |
  High | ref |  |  |  |  |