Table 3.

Comparison of complications after ABO-incompatible versus ABO-compatible kidney transplantation

Variable% ABO-Incompatible (Events/Total)% ABO-Compatible (Events/Total)RR (95% CI)P Value
Infection
 Severe nonviral infection12 (105 of 876)6 (163 of 2666)1.44 (1.13 to 1.82)<0.01
 CMV22 (210 of 976)19 (465 of 2462)1·0.20 (1.04 to 1.37)0.01
 BK14 (121 of 875)8 (215 of 2644)1.70 (1.14 to 2.56)0.01
Biopsy-proven acute rejection24 (193 of 806)17 (523 of 3117)1.39 (1.19 to 1.61)<0.001
Antibody-mediated rejection10 (75 of 744)2 (65 of 2839)3.86 (2.05 to 7.29)<0.001
Bleeding11 (63 of 579)4 (53 of 1450)1.92 (1.36 to 2.72)<0.001
  • RR, relative risk; 95% CI, 95% confidence interval; CMV, cytomegalovirus.