Table 3. Predicted risk scores for mortality in elder dementia patients using Cox proportional hazard regression models in derivation group.
| Characteristics | Adjusted HR (95% CI) | β | Points in risk score |
|---|---|---|---|
| Sex | |||
| Male | 1.21 (1.17–1.26) | 0.19300 | 1 |
| Female | 1.00 (Ref.) | 0 | 0 |
| Age, years | |||
| 65–69 | 1.00 (Ref.) | 0 | 0 |
| 70–74 | 1.13 (1.05–1.22) | 0.12456 | 1 |
| 75–79 | 1.33 (1.24–1.43) | 0.28493 | 2 |
| 80–84 | 1.71 (1.59–1.83) | 0.53616 | 3 |
| ≥85+ | 2.45 (2.28–2.63) | 0.89657 | 4 |
| Comorbidity | |||
| Cancer | 1.70 (1.61–1.80) | 0.53151 | 2 |
| Stroke | 1.37 (1.32–1.41) | 0.31198 | 1 |
| Renal failure | 1.43 (1.37–1.50) | 0.35911 | 1 |
| Liver cirrhosis | 1.36 (1.22–1.51) | 0.30543 | 1 |
| Pressure injury | 1.45 (1.37–1.53) | 0.36965 | 2 |
| Hospitalization | |||
| Ward care ≥ 2 times | 1.21 (1.16–1.26) | 0.19020 | 1 |
| Emergency services ≥ 1 times | 1.24 (1.19–1.29) | 0.21432 | 1 |
| Medical procedure | |||
| NG tube placement | 1.53 (1.46–1.61) | 0.42955 | 2 |
| Oxygen supply | 1.54 (1.47–1.62) | 0.43172 | 2 |
| ET ≥ 2 times | 1.88 (1.80–1.97) | 0.63292 | 3 |
| CPR ≥ 2 times | 1.51 (1.45–1.58) | 0.41409 | 2 |
NG, nasogastric; ET, endotracheal intubation; CPR, cardiopulmonary resuscitation.