Table 6.
Results of the multiple regression analysis showing the influence of gender on the 12-month postoperative scores for each of the PROMs while controlling for baseline scores of the given PROM and the covariates comorbidity, age, BMI, SF-12 MCS, and sociodemographic differences
| Predictors | OHS | WOMAC | ||
|---|---|---|---|---|
| B | p value | B | p value | |
| Gender | −0.2 (−2.2 to 1.9) | 0.873 | −0.5 (−3.9 to 3.0) | 0.779 |
| Baseline PROM | 0.3 (0.2−0.4) | < 0.001 | 0.1 (0.0−0.2) | 0.010 |
| Age | −0.0 (−0.1 to 0.1) | 0.959 | −0.1 (−0.3 to 0.1) | 0.513 |
| BMI | −0.2 (−0.4 to 0.1) | 0.166 | −0.5 (−0.9 to −0.2) | 0.018 |
| Number of comorbidities | −0.4 (−1.3 to 0.5) | 0.397 | −1.2 (−2.7 to 0.4) | 0.141 |
| SF-12 MCS | 0.1 (0.0–0.2) | 0.159 | 0.1 (−0.1 to 0.2) | 0.534 |
| High education versus lower education | −0.7 (−3.2 to 1.8) | 0.576 | −0.5 (4.6–3.6) | 0.812 |
| Living with partner versus living alone | 0.5 (−1.5 to 2.4) | 0.643 | 1.8 (−1.5 to 5.1) | 0.299 |
| Full-time employed versus retired | 0.8 (−1.7 to 3.3) | 0.529 | 0.8 (−3.8 to 5.0) | 0.725 |
| Homeworker versus retired | −0.7 (−3.9 to 2.4) | 0.640 | 2.3 (−2.9 to 7.6) | 0.382 |
PROMs = patient-reported outcome measures; BMI = body mass index; MCS = mental component summary; OHS = Oxford Hip Score.