. Author manuscript; available in PMC: 2013 Jul 29.

Published in final edited form as: J Cardiovasc Med (Hagerstown). 2012 Apr;13(4):246–253. doi: 10.2459/JCM.0b013e3283516767

Table 3a.

Simplified/optimized renal risk classification

BUN Strata	ΔCr cutpoint	Sensitivity In-hospital death	Specificity In-hospital death	Odds ratio^*
BUN ≤ 30	0.6	54.1 (40/74)	88.5 (4595/5190)	9.1 (5.71 –14.5)
BUN > 30	0.8	52.3 (68/130)	86.1 (1722/2000)	6.8 (4.71 – 9.8)
BUN Strata	ΔCr cutpoint	Sensitivity Post-discharge death	Specificity Post-discharge death	Odds ratio
BUN ≤ 30	0.1	75.5 (673/891)	31.2 (1080/3462)	1.4 (1.18 – 1.66)
BUN > 30	0.3	44.5 (339/761)	59.7 (608/1018)	1.2 (0.99 – 1.44)

Odds ratio of Cr above threshold vs. below, within given BUN category