Table 1.
Main baseline clinical data in patients with r-AKI versus controls
| Characteristic | r-AKI (n=105) | Controls (n=24,640) | P Value |
|---|---|---|---|
| Demographics | |||
| Age at first prenatal visit, yr | 31.3±6.0 | 30.3±6.0 | 0.08 |
| Nonwhite race | 34 (36) | 45 (10,992) | 0.04 |
| Black | 6 (6) | 6 (1431) | |
| Hispanic | 18 (19) | 25 (6056) | |
| Asian | 2 (2) | 6 (1543) | |
| Other | 9 (9) | 8 (1962) | |
| Married | 68 (71) | 69 (16,980) | 0.75 |
| High school education | 68 (70) | 82 (17,738) | 0.24 |
| Initial prenatal visit characteristics | |||
| Gestational age at visit, wk | 12.7±5.4 | 12.7±5.8 | >0.90 |
| BMI at first prenatal visit, kg/m2 | 25.6±5.2 | 25.5±5.0 | 0.74 |
| Nulliparous | 46 (48) | 48 (11,743) | 0.67 |
| Preexisting hypertension | 3 (3) | 3 (590) | 0.96 |
| Preexisting diabetes | 12 (13) | 3 (731) | <0.001 |
| Systolic BP, mmHg | 112±14 | 111±11 | 0.32 |
| Diastolic BP, mmHg | 70±10 | 68±9 | 0.13 |
| Preconception creatinine, mg/dl | 0.70±0.20 | 0.69±0.10 | 0.36 |
| Baseline urine dipstick proteinuria | |||
| Trace | 14 (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.