Table 1.

Baseline and postoperative characteristics by AKI progression status

CharacteristicAKI without Progression, n=148AKI with Progression, n=28P Valuea
Age, yr2.7 (4.0)1.9 (2.9)0.51
Women67 (45%)12 (43%)0.81
Nonwhite race25 (17%)7 (25%)0.31
Preoperative eGFR98.3 (32.0)106.3 (32.5)0.19
RACHS-1 category
 11 (1%)0.92
 276 (52%)13 (46%)
 361 (41%)13 (46%)
 49 (6%)2 (7%)
CPB time, min116.0 (64.6)142.3 (54.8)0.003
Crossclamp time, min48.0 (46.8)59.5 (42.5)0.09
Type of surgery, urgent12 (8%)6 (21%)0.03
Type of surgery
 Septal defect repair47 (33%)7 (27%)0.50
 Inflow/outflow tract or valve procedure19 (13%)2 (8%)
 Combined procedure76 (54%)17 (65%)
Index hospitalization
 Dialysis0 (0%)3 (11%)<0.001
 Length of stay in ICU, d4.4 (4.68)10.7 (10.5)<0.001
 Length of stay in hospital, d9.6 (10.0)19.2 (18.5)<0.001
 In-hospital death4 (3%)1 (4%)0.80
 No. of days on ventilator2.0 (1.6)3.5 (1.6)<0.001
  • RACHS-1, risk adjustment of congenital heart surgery 1; CPB, cardiopulmonary bypass; ICU, intensive care unit.

  • a P values were obtained by the Kruskal–Wallace test.