Logistic and Cox Proportional Hazards Models for Mortality from the Geriatric Continuity Clinic Data Set
| Without Function Variables | With Function Variables | |||
|---|---|---|---|---|
| Mortality* | P | Mortality* | P | |
| Logistic model | ||||
| Age | 0.95 (0.92–0.98) | .002 | 0.96 (0.92–0.99) | .015 |
| Sex (female) | 0.45 (0.24–0.81) | .009 | 0.42 (0.24–0.75) | .005 |
| BMI | 0.91 (0.87–0.95) | <.0001 | 0.92 (0.88–0.96) | .0002 |
| ADL | 0.83 (0.65–1.04) | .03 | ||
| IADL | 0.88 (0.78–0.99) | .03 | ||
| Dementia | 6.62 (3.45–14.08) | <.0001 | 4.10 (2.03–8.30) | <.0001 |
| Night sweats | 1.25 (0.68–2.38) | .48 | 1.14 (0.60–2.24) | .70 |
| Cox proportional hazards model | ||||
| Age | 0.96 (0.95–0.97) | <.0001 | 0.96 (0.95–0.98) | <.0001 |
| Sex (female) | 0.74 (0.61–0.89) | .002 | 0.75 (0.61–0.90) | .003 |
| BMI | 0.95 (0.94–0.97) | <.0001 | 0.96 (0.94–0.98) | <.0001 |
| ADL | 0.88 (0.85–0.95) | <.0001 | ||
| Dementia | 2.02 (1.68–2.43) | <.0001 | 1.75 (1.45–2.12) | <.0001 |
| Night sweats | 1.29 (1.00–1.67) | .054 | 1.21 (0.93–1.57) | .16 |
* Data in Mortality columns provided as odds ratio (95 CI).
BMI, body mass index; ADL, activities of daily living; IADL, instrumental activities of daily living.