Table 3.
Patient reported outcomes (PROs) 1-year after total hip arthroplasty by education level
| Unadjusted | Adjusteda | |||
|---|---|---|---|---|
| β coefficient with 95% confident interval | P value | β coefficient with 95% confident interval | P value | |
| WOMAC Pain | ||||
| Low | -5.4 (-8.1 to -2.7) | <0.001 | -2.5 (-5.2 to 0.2) | 0.071 |
| Medium | -2.0 (-4.8 to 0.8) | 0.154 | -0.6 (-3.3 to 2.1) | 0.653 |
| High | Reference | Reference | ||
| WOMAC Function | ||||
| Low | -9.0 (-12.1 to -5.9) | <0.001 | -2.6 (-5.7 to 0.5) | 0.098 |
| Medium | -4.1 (-7.3 to -0.9) | 0.012 | -0.1 (-3.1 to 2.9) | 0.950 |
| High | Reference | Reference | ||
| SF-12 PCS | ||||
| Low | -4.2 (-5.7 to -2.7) | <0.001 | -1.9 (-3.3 to -0.5) | 0.009 |
| Medium | -1.6 (-3.1 to -0.1) | 0.037 | 0.2 (-1.6 to 1.2) | 0.760 |
| High | Reference | Reference | ||
| SF-12 MCS | ||||
| Low | -2.7 (-4.3 to -1.1) | 0.001 | -0.1 (-1.6 to 1.5) | 0.949 |
| Medium | -0.8 (-2.4 to 0.9) | 0.368 | 0.7 (-0.8 to 2.2) | 0.343 |
| High | Reference | Reference | ||
aAdjustment performed for corresponding preoperative PRO level, sex, ASA score, type of osteoarthritis, Charnley classification, age, BMI, and self-rated health (for WOMAC Pain and Function only)