Cox regression analyses with dichotomous depression variable
| Variable | Hospital admissions, HR (95% CI) | Inpatient death, HR (95% CI) | ||
|---|---|---|---|---|
| Univariate | Multivariate | Univariate | Multivariate | |
| Depression* | 2.46 (2.08–2.92) | 1.67 (1.38–2.01) | 3.82 (1.85–7.9) | 1.81 (0.82–4.04) |
| Age | 1.34 (1.25–1.43) | 2.42 (1.78–3.31) | ||
| Education level | 0.91 (0.86–0.97) | 1.14 (0.87–1.50) | ||
| Duke Social Support Index tertiles | 0.97 (0.90–1.04) | 0.84 (0.58–1.20) | ||
| Smoking | 0.76 (0.67–0.86) | 0.56 (0.29–1.19) | ||
| Charlson index (weighted) | 1.17 (1.14–1.20) | 1.19 (1.08–1.25) | ||
Note: CI = confidence interval, GDS-15 = 15-item Geriatric Depression Scale, HR = hazard ratio.
↵* No clinically significant depression = GDS-15 score < 7; clinically significant depression = GDS-15 score ≥ 7.