Cox multivariate regression analysis with backward directed stepwise procedure about the effect of diabetes on the risk of late death after pneumonia
| Adjusted HR | 95% CI | p Value | |
|---|---|---|---|
| Diabetes | 2.84 | 1.35 to 5.99 | 0.006 |
| Karnofsky equal or less than 80% | 4.19 | 1.86 to 9.46 | 0.001 |
| Age, years | 1.53* | 1.00 to 2.34 | 0.048 |
| Urea, mmol/L | 1.78* | 1.20 to 2.64 | 0.004 |
The included confounders were age, Karnofsky score equal or less than 80%, elevated plasma NT-proBNP, and plasma urea concentration. Only factors with at least suggestive independent association (p<0.10) with the risk of late death are presented. N=142 (1 patient with and 10 patients without diabetes were excluded due to lack of urea measurements).
*HR is expressed per quartile.