. 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 2.

Cr cutoffs to predict death stratified by baseline BUN quartile

BUN Strata	ΔCr cutpoint	Sensitivity In-hospital death	Specificity In-hospital death	Sensitivity + Specificity	Odds Ratio
0 < BUN ≤ 15	0.2	94.4 (17/18)	48.9 (822/1680)	143.3	16.29
	0.3	72.2 (13/18)	67.7 (1137/1680)	139.9	5.44
	0.5	50.0 (9/18)	88.5 (1487/1680)	138.5	7.70
16 ≤ BUN ≤ 22	0.3	62.5 (20/32)	63.5 (1279/2014)	126	2.90
	0.5	59.4 (19/32)	82.2 (1656/2014)	141.6	6.76
	0.6	59.4 (19/32)	88.0 (1772/2014)	147.4	10.70
23 ≤ BUN ≤ 32	0.3	63.9 (23/36)	60.0 (1039/1731)	123.9	2.66
	0.5	50.0 (18/36)	79.4 (1375/1731)	129.4	3.86
	0.7	44.4 (16/36)	89.3 (1546/1731)	133.7	6.69
33 ≤ BUN < 200	0.3	67.8 (80/118)	56.9 (1005/1765)	124.7	2.78
	0.5	60.2 (71/118)	74.2 (1310/1765)	134.4	4.35
	0.8	54.9 (65/118)	85.8 (1514/1765)	140.7	7.40
BUN Strata	ΔCr cutpoint	Sensitivity Post-discharge death	Specificity Post-discharge death	Sensitivity + Specificity	Odds ratio
0 < BUN ≤ 15	0.3	83.0 (181/218)	18.4 (206/1118)	101.4	1.11
0 < BUN ≤ 15	0.5	93.6 (204/218)	7.4 (83/1118)	101	1.17
16 ≤ BUN ≤ 22	0.3	42.6 (142/333)	65.4 (902/1380)	108	1.40
16 ≤ BUN ≤ 22	0.5	22.5 (75/333)	83.7 (1155/1380)	106.2	1.49
23 ≤ BUN ≤ 32	0.1	73.3 (302/412)	33.0 (362/1096)	106.3	1.35
	0.3	56.6 (233/412)	46.9 (514/1096)	103.5	1.15
	0.5	20.9 (86/412)	80.1(878/1096)	101	1.06
33 ≤ BUN < 200	0.1	69.2 (477/689)	37.0 (331/895)	106.2	1.32
	0.3	46.0 (317/689)	58.4 (523/895)	104.4	1.20
	0.5	28.0 (193/689)	74.2 (664/895)	102.2	1.19