Table 2b.

Characteristics of the operated patients in the surgery ward

CharacteristicsnrHA-AKI n (%) 272 (17)lrHA-AKI n (%) 840 (53)erHA-AKI n (%) 481 (30)Pa
Age, years60 ± 1361 ± 1062 ± 150.91
Women122 (45)395 (47)221 (46)0.82
Men150 (55)445 (53)260 (54)0.69
Emergency25 (9)143 (17)24 (5)0.02
admission source (%)
    home94.895.194.70.86
    hospital3.83.43.90.93
    chronic care1.41.51.40.61
Type of surgery
    general94 (19)33 (7)362 (74)<0.01
    urologic26 (10)27 (10)208 (80)<0.01
    vascular18 (9)26 (13)150 (77)<0.01
    thoracic17 (15)8 (7)90 (78)<0.01
    cardiac101 (27)33 (9)247 (65)<0.01
    neurosurgery8 (9)8 (9)69 (81)<0.01
    orthopedic8 (12)8 (12)52 (76)<0.01
Wound infection17 (6.3)97 (11.6)15 (3.1)0.01
  • Values are expressed as number (percent), mean ± SD, or median (range). nrHA-AKI, hospital-acquired acute kidney injury; without nephrology referral; lrHA-AKI, late-referred HA-AKI; erHA-AKI, early-referred HA-AKI.

  • a Group-wise differences were calculated using ANOVA with Bonferroni correction when necessary.

  • b Oliguria was defined as urinary output <500 ml/24 h.