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Table 2 Patient outcomes after cardiac surgery

From: Validating a scoring tool to predict acute kidney injury (AKI) following cardiac surgery

  No AKI (N = 1980) KDIGO stage 1 (N = 142) KDIGO stage 2 (N = 60) KDIGO stage 3 (N = 134)  
  N (%) N (%) N (%) N (%) p-value
Type of dialysis N/A N/A N/A   N/A
Continuous Renal Replacement Therapy     45 (36%)  
In-Patient Hemodialysis     75 (60%)  
Peritoneal Dialysis     1 (0.8%)  
Unknown     4 (3.2%)  
Discharge destination      
Died (n = 148)^ 50 (2.5%) 20 (14.1%) 14 (23.3%) 64 (47.8%)  
Home (n = 1327) 1220 (61.6%) 66 (46.5%) 16 (26.7%) 25 (18.7%)  
Support services (n = 598) 537 (27.1%) 32 (22.5%) 10 (16.7%) 19 (14.2%)  
Inpatient facility (n = 204) 147 (7.4%) 20 (14.1%) 17 (28.3%) 20 (14.9%)  
Long-term care facility (n = 31) 19 (1.0%) 4 (2.8%) 3 (5.0%) 5 (3.7%)  
Other (n = 8) 7 (0.4%) 0 0 1 (0.7%)  
  Mean (SD) Mean (SD) Mean (SD) Mean (SD) p-value
Length of stay (days) 14.02 (11.55) 23.83* (35.80) 24.97* (18.31) 32.96*,& (33.05) <0.001
  1. Abbreviations: AKI acute kidney injury, KDIGO kidney disease: improving global outcomes, SD standard deviation.
  2. ^Mortality only: Χ2 (3) = 475.69, p < 0.001, Cramer’s V = 0.45.
  3. *significantly different from No AKI (p < 0.05, Bonferroni).
  4. &significantly different from Stage 1 (p < 0.05, Bonferroni).