Table 4.
Predictors of In-Hospital Exposure and Subsequent Discharge on an Antipsychotic, Among Admissions without Pre-Admission Exposure
| Variable | In-Hospital Exposure (n=16,953)
|
Discharged on an Antipsychotic Among In-Hospital Exposed (n=744)a
|
||||
|---|---|---|---|---|---|---|
| RRb | 95% CI | RRb | 95% CI | |||
| Age | ||||||
| 65–74 vs <65 | 1.0 | 0.8 | 1.2 | 0.9 | 0.7 | 1.2 |
| 75+ vs <65 | 1.4 | 1.2 | 1.7 | 0.6 | 0.4 | 0.7 |
| Gender | ||||||
| Male vs Female | 1.2 | 1.1 | 1.4 | 1.0 | 0.8 | 1.2 |
| Race | ||||||
| Asian vs White | 0.8 | 0.5 | 1.2 | 0.9 | 0.4 | 2.1 |
| Black vs White | 0.8 | 0.6 | 0.96 | 0.8 | 0.5 | 1.2 |
| Hispanic vs White | 0.9 | 0.7 | 1.3 | 0.8 | 0.5 | 1.4 |
| Other vs White | 1.0 | 0.9 | 1.2 | 1.0 | 0.7 | 1.3 |
| Diagnoses | ||||||
| Delirium | 4.8 | 4.2 | 5.7 | 1.1 | 0.9 | 1.4 |
| Dementia | 2.1 | 1.7 | 2.6 | 1.2 | 0.9 | 1.6 |
| Insomnia | 1.2 | 0.8 | 1.7 | 1.5 | 0.8 | 2.8 |
| Admitting Department | ||||||
| Medicine vs Non-Medicine | 1.2 | 1.1 | 1.4 | 1.1 | 0.8 | 1.4 |
| Any ICU Stay | 2.1 | 1.8 | 2.4 | 0.8 | 0.6 | 1.02 |
| Mechanical Ventilation | 2.0 | 1.7 | 2.4 | 0.8 | 0.6 | 1.1 |
| Admission Day of the Week | ||||||
| Weekend vs Weekday | 0.9 | 0.8 | 1.1 | N/A | N/A | N/A |
| Discharge Day of the Week | ||||||
| Weekend vs Weekday | N/A | N/A | N/A | 0.9 | 0.6 | 1.2 |
| Disposition Location | ||||||
| Not Home vs Home | N/A | N/A | N/A | 2.5 | 1.8 | 3.3 |
| In-Hospital Exposure | ||||||
| Atypical vs Typical | N/A | N/A | N/A | 1.6 | 1.1 | 2.3 |
| Both vs Typical | N/A | N/A | N/A | 2.7 | 1.9 | 3.8 |
| As needed only vs scheduled | N/A | N/A | N/A | 1.0 | 0.8 | 1.4 |
Abbreviations: RR = relative risk; CI = confidence interval; ICU = intensive care unit; N/A = not applicable
a
Excluding patients who died during hospitalization or left against medical advice.
b
Derived from a multivariable Poisson model simultaneously including all potential predictors as independent variables.