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. Author manuscript; available in PMC: 2010 Jun 1.
Published in final edited form as: Am J Transplant. 2009 May 20;9(6):1460–1466. doi: 10.1111/j.1600-6143.2009.02651.x

Table 1.

Clinical correlates for graft failure occurring more than 1 week after transplantation.

Graft Function and Institution UMMC+HCMC (N=4957)
N1 RR (95% CI) P-Value2
Transplanted at HCMC 1687 1.03 (0.92–1.17) P=0.5921
SGF3 v. IF4 at HCMC 172 0.99 (0.77–1.28) P=0.9686
SGF v. IF at UMMC 502 1.43 (1.25–1.64) P<0.0001
Short DGF5 v. IF at HCMC 214 1.27 (1.04–1.56) P=0.0170
Short DGF v. IF at UMMC 180 1.27 (1.02–1.57) P=0.0296
Prolonged DGF v. IF at HCMC 342 1.51 (1.27–1.79) P<0.0001
Prolonged DGF v. IF at UMMC 224 2.12 (1.78–2.51) P<0.0001
1

The number of transplantations having the characteristic described in column 1.

2

P values > 0.05 are underlined.

3

SGF was defined as not having DGF but serum creatinine on posttransplant day 5 > 3.0 mg/dL without dialysis. When values for serum creatinine were missing on day 5, an average of days 4 and 7 was substituted, or when day 4 was missing day 7 was substituted. Of the 918 (18.1%) SGF missing values, 884 were substituted. A missing value indicator for the remaining 34 missing included in the model was not statistically significant.

4

IF was defined as not having either DGF or SGF.

5

DGF was defined as the need for dialysis within the first week after transplantation. It was called short if only 1 or 2 dialysis treatments were required, and prolonged if 3 or more treatments were required.

Abbreviations: UMMC, University of Minnesota Medical Center; HCMC, Hennepin County Medical Center; CI, confidence interval; SGF, slow graft function; IF, immediate function; DGF, delayed graft function.