TABLE 2.
Association between preoperative vitamin D status and outcomes after hip fracture surgery1
| Vitamin D concentration | |||||
|---|---|---|---|---|---|
| <12 ng/mL | 12 to <20 ng/mL | 20 to <30 ng/mL | ≥30 ng/mL | P overall | |
| Ability to walk | |||||
| 30 d, % who walk | 35 | 56 | 64 | 58 | |
| Unadjusted OR (95% CI) | — | 2.30 (1.03, 5.17) | 3.24 (1.45, 7.26) | 2.57 (1.04, 6.36) | 0.040 |
| Adjusted OR (95% CI) | — | 2.61 (1.13, 5.99) | 3.48 (1.53, 7.95) | 2.84 (1.12, 7.20) | 0.031 |
| 60 d, % who walk | 51 | 67 | 74 | 73 | |
| Unadjusted OR (95% CI) | — | 1.89 (0.86, 4.15) | 2.70 (1.22, 5.95) | 2.62 (1.05, 6.55) | 0.079 |
| Adjusted OR (95% CI) | — | 2.67 (1.14, 6.25) | 3.42 (1.46, 8.00) | 3.67 (1.37, 9.82) | 0.028 |
| Mortality | |||||
| 30 d, % who died | 3 | 5 | 2 | 2 | |
| Unadjusted OR (95% CI) | — | 1.85 (0.21, 16.39) | 0.64 (0.06, 7.30) | 0.71 (0.04, 11.72) | 0.582 |
| Adjusted OR (95% CI) | — | 1.44 (0.15, 13.58) | 0.54 (0.04, 6.62) | 0.52 (0.03, 9.22) | 0.631 |
| 60 d, % who died | 11 | 9 | 6 | 2 | |
| Unadjusted OR (95% CI) | — | 0.80 (0.23, 2.79) | 0.46 (0.12, 1.72) | 0.16 (0.02, 1.51) | 0.304 |
| Adjusted OR (95% CI) | — | 0.56 (0.15, 2.08) | 0.34 (0.08, 1.40) | 0.11 (0.01, 1.05) | 0.206 |
1
n = 290 patients in 4 categories: <12 ng/mL (n = 35), 12 to <20 ng/mL (n = 98), 20 to <30 ng/mL (n = 108), ≥30 ng/mL (n = 49); ORs were determined by binary logistic regression analysis, unadjusted or adjusted for age and sex.