Unadjusted and adjusted associations between prehospital 25(OH)D level and 90-day mortality in patients with acute respiratory failure
| OR | 95% CI | p Value | |
|---|---|---|---|
| Unadjusted | |||
| 25(OH)D | |||
| <20 ng/mL | 2.19 | 1.31 to 3.63 | 0.003 |
| 20–29.9 ng/mL | 1.37 | 0.77 to 2.44 | 0.285 |
| ≥30 ng/mL | 1.00 | Referent | |
| Adjusted | |||
| 25(OH)D | |||
| <20 ng/mL | 2.48 | 1.45 to 4.25 | 0.001 |
| 20–29.9 ng/mL | 1.48 | 0.82 to 2.70 | 0.195 |
| ≥30 ng/mL | 1.00 | Referent | |
CI, OR for 90-day mortality. N=381, 90-day mortality 39.9%. Referent in each case is 25(OH)D ≥30 ng/mL.
<20 ng/mL cut point chosen for power issues. Estimates adjusted for age, race, sex, Deyo-Charlson Index and patient type (medical vs surgical). 100% of the cohort had vital status follow-up at 90 days.