Table 2

Multivariate analysis showing the independent risk factors for mortality using the Cox proportional hazards model

Hazards ratio (95% CI)p value
DM=diabetes mellitus.
†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 years3.5 (1.2 to 10.2)0.02*
Presence of DM/cardiac disease9.1 (2.8 to 29.1)<0.001*
Presence of other comorbidities†5.2 (1.4 to 19.7)0.01*