Table 1.

Baseline characteristics of the study cohort

CharacteristicOverallPRA 0%PRA 1%–19%PRA 20%–79%PRA 80%–100%P Value
No. of Patients (n=161,308)Summary MeasuresNo. of Patients (n=120,888)Summary MeasuresNo. of Patients (n=22,112)Summary MeasuresNo. of Patients (n=13,000)Summary MeasuresNo. of Patients (n=5308)Summary Measures
Mean candidate age, yr (SD)161,30851.0 (13.0)120,88851.0 (13.1)22,11251.0 (13.1)13,00050.8 (12.4)530850.2 (12.2)<0.001
Candidate sex, %
 Men96,42859.879,57965.812,84958.1333725.766312.5
 Women64,88040.241,30934.2926341.9966374.3464587.5<0.001
Candidate blood type, %
 A53,31233.040,46833.5705131.9410831.6168531.7
 B23,55414.617,72314.7320914.5187814.574414.0
 AB62493.947063. 98493.84973.81973.7
 O78,19348.557,99147.911,00349.8651750.1268250.5<0.001
Candidate race, %
 White75,14046.658,30448.2972144.0510839.3200737.8
 Black48,07629.834,42428.5699031.6469336.1196937.1
 Hispanic25,58915.918,64315.4374116.9225817.494717.8
 Asian92555.770545.912785.86735.22504.7
 Other32482.024632.03821.72682.11352.5<0.001
Candidate BMI category
 <18.546202.932522.76392.94903.82394.5
 18.5< BMI <2558,64936.443,90736.3807336.5469036.1197937.3
 25< BMI <3051,51031.939,04732.3699831.7393930.3152628.8
 >3046,52928.834,68228.7640229.0388129.8156429.5<0.001
Cause of ESRD, %
 GN30,62419.022,80218.9412218.6263420.3106620.1
 Diabetes53,13332.940,22633.3715332.4403331.0172132.4
 PKD12,9518.098488.217567.910197.83286.2
 Hypertension38,58523.928,84023.9529423.9315924.3129224.3
 Other26,01516.119,17215.9378717.1215516.690117.0<0.001
Activation era, %
 2000–200354,48633.842,16334.9732333.1357827.5142226.8
 2004–200652,23832.439,56132.7691231.3404831.1171732.4
 2007–200954,58433.839,16432.4787735.6537441.3216940.9<0.001
Median time from dialysis initiation to activation, yr (IQR)161,3080.7 (1.6)120,8880.7 (1.5)22,1120.7 (1.6)13,0000.8 (1.7)53080.9 (1.8)<0.001
Dialysis modality on activation, %
 HD96,90760.172,18859.713,34660.4784160.3353266.5
 PD16,91010.512,97110.720829.4135410.45039.5
 No dialysis39,10424.230,10624.9524023.7281621.794217.8
 Modality unknown83875.256234.714446.59897.63316.2<0.001
Multilisted, %
 No142,28988.2106,58388.219,57788.511,47788.3465287.6
 Yes19,01911.814,30511.8253511.5152311.765612.40.24
Diabetes, %
 No95,29259.171,08358.813,20159.7786960.5313959.1
 Yes66,01640.949,80541.2891140.3513139.5216940.9<0.001
Peripheral vascular disease, %
 No152,90994.8114,48894.721,04195.212,37495.2500694.3
 Yes83995.264005.310714.86264.83025.70.002
Accept HCV-positive kidney, %
 No153,99595.5115,50895.620,83194.212,51996.3513796.8
 Yes73134.553804.512815.84813.71713.2<0.001
  • BMI, body mass index; PKD, polycystic kidney disease; HD, hemodialysis; PD, peritoneal dialysis.