Table 2. Cox proportional hazard model of survival in bedridden patients.
| Characteristics | Univariate HR (95% CI) |
P | Multivariate HR (95% CI) |
P |
|---|---|---|---|---|
| Age | 1.001 (0.997–1.004) | 0.723 | 1.006 (1.000–1.011) | 0.036* |
| Gender | ||||
| male | 1.00 | 1.00 | ||
| female | 0.981 (0.869–1.109) | 0.762 | 0.947 (0.834–1.076) | 0.405 |
| Education | ||||
| Elementary school or below | 1.00 | 1.00 | ||
| Junior/ senior high school | 0.966 (0.852–1.095) | 0.589 | 1.045 (0.910–1.201) | 0.530 |
| Junior college or above | 1.102 (0.894–1.359) | 0.362 | 1.205 (0.969–1.498) | 0.094 |
| Total bedridden time | 0.991(0.988–0.995) | <0.001** | 0.988 (0.984–0.992) | <0.001** |
| Pressure ulcer |
—— |
|||
| No | 1.00 | |||
| Yes | 1.119 (0.938–1.335) | 0.212 | ||
| Deep venous thrombosis |
—— |
|||
| No | 1.00 | |||
| Yes | 1.038 (0.747–1.441) | 0.825 | ||
| Urinary tract infection | ||||
| No | 1.00 | 1.00 | ||
| Yes | 0.569 (0.426–0.761) | <0.001** | 0.613 (0.456–0.825) | 0.001* |
| Pulmonary infection | ||||
| No | 1.00 | 1.00 | ||
| Yes | 1.230 (1.092–1.386) | 0.001* | 1.439 (1.266–1.635) | <0.001** |
| Charlson comorbidity index score | ||||
| 0 | 1.00 | 1.00 | ||
| 1~2 | 1.036 (0.622–1.726) | 0.892 | 0.824 (0.490–1.385) | 0.464 |
| 3~4 | 1.015 (0.622–1.654) | 0.954 | 0.722 (0.428–1.218) | 0.222 |
| ≥5 | 0.984 (0.608–1.593) | 0.947 | 0.631 (0.370–1.077) | 0.091 |
*p<0.05
** p<0.001