Table 2.
Predictors of mortality according to Cox proportional-hazards regression.
| Variable | H.R. | 95%CI | p-Value | ||
|---|---|---|---|---|---|
| Age | 1.07 | 1.03 | − | 1.11 | <0.001 |
| Gender (woman = 1) | 0.38 | 0.23 | − | 0.63 | <0.001 |
| BI | 0.98 | 0.97 | − | 1.00 | 0.006 |
| Medical history (yes = 1) | |||||
| Aspiration pneumonia | 1.33 | 0.36 | − | 5.01 | 0.670 |
| Cerebrovascular disorder | 0.97 | 0.63 | − | 1.51 | 0.901 |
| Circulatory disorder | 1.17 | 0.74 | − | 1.86 | 0.503 |
| Neoplastic disease | 1.98 | 0.94 | − | 4.17 | 0.071 |
| Diabetes mellitus | 1.80 | 1.07 | − | 3.04 | 0.028 |
| Number of medications (≧3 types = 1) | 0.91 | 0.56 | − | 1.46 | 0.682 |
| CDR | |||||
| 0/0.5 | Reference | ||||
| 1 | 0.74 | 0.33 | − | 1.66 | 0.471 |
| 2 | 0.99 | 0.46 | − | 2.14 | 0.983 |
| 3 | 1.31 | 0.53 | − | 3.23 | 0.559 |
| MNA®-SF | |||||
| Normal nutritional status | Reference | ||||
| At risk of malnutrition | 1.17 | 0.60 | − | 2.31 | 0.641 |
| Malnourished | 1.66 | 0.74 | − | 3.74 | 0.218 |
| Food morphology (defined formula diet = 1) | 0.86 | 0.47 | − | 1.56 | 0.621 |
| Rinsing ability (poor = 1) | 1.18 | 0.70 | − | 2.00 | 0.538 |
| Articulation of /TA/ (poor = 1) | 0.71 | 0.39 | − | 1.31 | 0.272 |
| MWST (poor = 1) | 0.92 | 0.54 | − | 1.57 | 0.770 |
| Oral dryness (yes = 1) | 1.83 | 1.12 | − | 3.00 | 0.015 |
HR, hazard ratio; CI, confidence interval; BI, Barthel index; CDR, clinical dementia rating; MNA®-SF, mini nutritional assessment-short form; MWST, modified water swallowing test. Bold text indicates a statistically significant association (p < 0.05).