Table 1.

Main baseline clinical data in patients with r-AKI versus controls

Characteristicr-AKI (n=105)Controls (n=24,640)P Value
Demographics
 Age at first prenatal visit, yr31.3±6.030.3±6.00.08
 Nonwhite race34 (36)45 (10,992)0.04
  Black6 (6)6 (1431)
  Hispanic18 (19)25 (6056)
  Asian2 (2)6 (1543)
  Other9 (9)8 (1962)
 Married68 (71)69 (16,980)0.75
 High school education68 (70)82 (17,738)0.24
Initial prenatal visit characteristics
 Gestational age at visit, wk12.7±5.412.7±5.8>0.90
 BMI at first prenatal visit, kg/m225.6±5.225.5±5.00.74
 Nulliparous46 (48)48 (11,743)0.67
 Preexisting hypertension3 (3)3 (590)0.96
 Preexisting diabetes12 (13)3 (731)<0.001
 Systolic BP, mmHg112±14111±110.32
 Diastolic BP, mmHg70±1068±90.13
 Preconception creatinine, mg/dl0.70±0.200.69±0.100.36
 Baseline urine dipstick proteinuria
  Trace14 (15)19 (4728)0.22
  1+1 (1)2 (492)0.45
  • Data are presented as percentage (n) or mean±SD. Preconception creatinine (dated within 6 months of initial prenatal visit) was available in all patients with r-AKI and 8971 of controls.