Table.
Patient characteristics and demographics.
| Non-Vitamin D Deficient* | Vitamin D Deficient* | |
|---|---|---|
| Median age (IQR) | 74 (69, 82) | 72 (67, 79) |
| Female gender | 51 (54.8%) | 22 (53.7%) |
| Non-white race | 6 (6.5%) | 8 (19.5%) |
| Median pre-illness IQCODE (IQR) | 3.56 (3.06, 4.13) | 3.19 (3.00, 4.00) |
| Median OARS ADL (IQR) | 22 (15, 27) | 25 (17, 27) |
| Median Charlson Comorbidity Index (IQR) | 4 (3, 6) | 4 (2, 5) |
| Median APS (IQR) | 13 (12, 15) | 15 (13, 18) |
| CNS diagnosis | 20 (21.5%) | 3 (7.3%) |
| ED chief complaint | ||
| Abdominal pain | 4 (4.4%) | 4 (10.3%) |
| Altered mental status | 16 (17.4%) | 7 (18.0%) |
| Chest pain | 6 (6.5%) | 5 (12.8%) |
| Generalized weakness | 9 (9.8%) | 2 (5.1%) |
| Nausea/vomiting | 5 (5.4%) | 0 (0.0%) |
| Shortness of breath | 10 (10.9%) | 5 (12.8%) |
| Syncope | 4 (4.4%) | 0 (0.0%) |
IQR, Interquartile range; APS, Acute Physiology Score; IQCODE, Informant Questionnaire on Cognitive Decline in the Elderly score; OARS ADL, Older American Services Activities of Daily Living; CNS, central nervous system.
The APS also incorporates age from the Acute Physiology and Chronic Health Evaluation II (APACHE II).
*
Vitamin D deficiency was defined as a serum concentration of less than 20 ng/dL.