Table 4.
Logistic Regression of Influence of Age and Comorbid Illness as Predictors of Clusters
| Cluster | Predictor | Odds ratio (95% CI) | SE | p | Estimate of variance |
|---|---|---|---|---|---|
| Acute symptom cluster | Age | .956 (.94-.98) | .012 | <.001 | |
| Lung disease | 1.21 (.72-2.0) | .265 | .472 | ||
| Diabetes | .952 (.59-1.5) | .248 | .841 | 7.3% | |
| Renal disease | .806 (.46-1.4) | .290 | .458 | ||
| PVD | .771 (.41-1.4) | .318 | .771 | ||
| Emotional cluster | Age | .965 (.95-.98) | .009 | <.001 | |
| Lung disease | .754 (.48-1.2) | .235 | .231 | ||
| Diabetes | .644 (.42-.99) | .221 | .046 | 7.4% | |
| Renal disease | 1.090 (.65-1.8) | .265 | .754 | ||
| PVD | .871 (.48-1.6) | .301 | .646 | ||
| Chronic symptom cluster | Age | .969 (.95-.99) | .009 | .001 | |
| Lung disease | 1.423 (.90-2.2) | .233 | .130 | ||
| Diabetes | 1.22 (.80-1.9) | .217 | .350 | 5.6% | |
| Renal disease | .989 (.59-1.7) | .264 | .966 | ||
| PVD | 1.080 (.61-.99) | .295 | .793 | ||
PVD = peripheral vascular disease
Estimate of variance = Nagelkerke R2