Multivariate analysis showing the independent risk factors for mortality using the Cox proportional hazards model
| Hazards ratio (95% CI) | p value | |
|---|---|---|
| DM=diabetes mellitus. | ||
| *p<0.05. | ||
| †Other comorbidities include hypertension, chronic lung diseases, cerebrovascular accidents. | ||
| Reference group is patient under 60 with no history of DM or cardiac disease and no history of other comorbidities. | ||
| Age >60 years | 3.5 (1.2 to 10.2) | 0.02* |
| Presence of DM/cardiac disease | 9.1 (2.8 to 29.1) | <0.001* |
| Presence of other comorbidities†| 5.2 (1.4 to 19.7) | 0.01* |