Table 1.

Characteristics of donor, recipient, and transplant factors in the steroid group

CharacteristicsSteroid Induction CategoriesP Value
IL2-RAr-ATGAlemtuzumabNo InductionBefore IPTWAfter IPTWa
N=59,010 (%)15,549 (26.4)27,732 (47)2497 (4.2)13,232 (22.4)
Donors
 Age, yr36.7±16.636.5±16.637.5±16.736.5±16.60.020.07
 Women, %39.238.538.539.30.34
 Race, %<0.001
  White69.466.969.767.4
  Black12.614.516.615.4
  Hispanic14.114.511.614.1
  Other3.94.12.13.1
 ECD, %14.814.816.4150.17
 KDPI, %43.2±27.443.9±27.446.2±28.143.6±27.6<0.0010.18
Recipients
 Age, yr51.3±13.450.1±12.949.9±12.949.8±12.9<0.0010.89
 Women, %36.441.943.839.3<0.0010.93
 Race, %<0.0010.98
  White49.843.249.144
  Black27.535.337.136
  Hispanic1414.3913
  Other8.87.24.87
 DM (yes), %42.144.145.842.8<0.0010.66
 CVD (yes), %6.77.15.35.7<0.0010.92
 Retransplant, %7.214.115.49.3<0.0010.12
 Dialysis before transplant, %<0.0010.03
  Preemptive14.313.615.314.8
  <1 yr6.54.475.7
  1–3 yr2927.127.430
  >3 yr50.354.950.349.5
 PRA, %<0.0010.29
  0–2055.838.226.356.5
  21–806.88.168.7
  81–1003.47.36.85.6
  Missing34.146.460.929.1
Transplants
 CIT, h16.6±7.916.5±820.1±11.817.2±8.5<0.0010.01
 Weight ratio D/R1.02±0.371.03±0.371.03±0.391.02±0.370.120.89
 HLA mismatch, %<0.0010.83
  12.621.72.8
  25.14.765.1
  314.914.216.114.8
  427.927.82727.6
  532.433.931.732.6
  617.117.417.417.2
 Transplant year, %<0.001<0.001
  2000–200115.13.4016.3
  2002–200315.99.41.716.2
  2004–200512.513.112.617.9
  2006–200714.4171715.4
  2008–200916.420.521.113.9
  2010–201225.836.647.520.3
  • IL2-RA, IL-2 receptor antagonist; r-ATG, rabbit antithymocyte globulin; IPTW, inverse probability of treatment weight; ECD, expanded criteria donor; KDPI, kidney donor profile index; DM, diabetes; CVD, cardiovascular disease; PRA, panel reactive antibody; CIT cold ischemia time; D/R, donor/recipient.

  • a Some of the P values are not reported, because those variables are not included in the propensity score analysis.