Table 3.
Comparison of postoperative patient-perceived outcomes and clinical hip scores between patients with and without vitamin D insufficiency (groups set by each threshold)
| Dependent measure | Insufficiency threshold set at 20 ng/mL | Insufficiency threshold set at 30 ng/mL | ||||
|---|---|---|---|---|---|---|
| Insufficient group (n = 18) | Normal group (n = 42) | p value* | Insufficient group (n = 39) | Normal group (n = 21) | p value† | |
| QWB-7 total score (points) | 0.549 ± 0.04 | 0.577 ± 0.08 | 0.378 | 0.602 ± 0.12 | 0.587 ± 0.1 | 0.772 |
| SF-36 physical component summary score (points) | 42 ± 6 | 42 ± 5 | 0.385 | 45 ± 4 | 40 ± 7 | 0.103 |
| SF-36 mental component summary score (points) | 55 ± 1 | 55 ± 3 | 0.395 | 55 ± 2 | 56 ± 3 | 0.307 |
| WOMAC total score (points) | 2 ± 0 | 4 ± 4 | 0.717 | 4 ± 4 | 3 ± 3 | 0.478 |
| Harris hip score (points) | 85 ± 6 | 89 ± 10 | 0.334 | 83 ± 9 | 92 ± 6 | 0.002 |
| Merle d’Aubigné-Postel hip score (points) | 14 ± 4 | 16 ± 2 | 0.257 | 14 ± 3 | 17 ± 2 | < 0.001 |
Values are expressed as mean ± SD; * multivariate analysis of covariance was used to adjust for BMI and compare the groups set using the 20-ng/mL cutoff; †independent t-tests were used to compare the groups set using the 30-ng/mL cutoff; QWB-7 = Quality of Well-Being Index.