Table 4.
Unadjusted and adjusted associations between pre-hospital vitamin D status and hospital-acquired new-onset delirium (HANOD)* (Odds ratios and 95% confidence intervals, n 4508)
| Pre-hospital 25(OH)D |
||||
|---|---|---|---|---|
| <10 ng/ml | 10–199 ng/ml | 20–299 ng/ml | ≥30 ng/ml | |
| Unadjusted | ||||
| OR | 2·34 | 1·53 | 1·23 | 1·00 |
| 95% CI | 1·45, 3·77 | 0·97, 2·40 | 0·76, 1·97 | Referent |
| P | <0·001 | 0·065 | 0·40 | |
| Adjusted | ||||
| OR | 2·15 | 1·54 | 1·23 | 1·00 |
| 95% CI | 1·32, 3·50 | 0·98, 2·43 | 0·76, 1·99 | Referent |
| P | 0·002 | 0·063 | 0·39 | |
25(OH)D, 25-hydroxyvitamin D.
*
Unadjusted associations between 25(OH)D groups and HANOD were estimated by bivariable logistic regression models. Adjusted OR were estimated by multi-variable logistic regression models with inclusion of covariate terms considered to plausibly associate with both 25(OH)D concentrations and HANOD. Estimates adjusted for age, sex, race (non-white v. white), patient type (medical v. surgical) and Deyo–Charlson Index.