Table 2.

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.