Table 2 Mortalities according to postoperative acute kidney injury (AKI).

From: Association between postoperative acute kidney injury and mortality after plastic and reconstructive surgery

 

No AKI (N = 7000)

AKI (N = 59)

Unadjusted HR (95% CI)

p-value

Adjusted HR (95% CI)

p-value

IPW Adjusted HR (95% CI)

p-value

One-year mortality

131 (1.9)

11 (18.6)

12.56 (6.79–23.24)

 < 0.001

3.34 (1.69–6.59)

0.001

6.69 (2.65–16.85)

 < 0.001

Overall mortality

324 (4.6)

17 (28.8)

9.61 (5.90–16.66)

 < 0.001

3.39 (1.99–5.77)

 < 0.001

4.94 (2.16–11.27)

 < 0.001

30-days mortality

17 (0.2)

6 (10.2)

45.73 (18.03–116)

 < 0.001

9.08 (2.94–28.02)

 < 0.001

21.40 (5.41–84.66)

 < 0.001

  1. IPW inverse probability weighting, HR hazrd ratio, CI confidence interval.
  2. Multivariable analysis retained age, male, hypertension, Charlson comorbidity index, preoperative creatinine and hemoglobin levels, operative duration, general anesthesia, emergency operation, and type of surgery.
  3. IPW adjustment analysis retained age, male, hypertension, smoking, alcohol, Charlson comorbidity index, preoperative creatinine and hemoglobin levels, operative duration, general anesthesia, emergency operation, and type of surgery, and variables with absolute standard mean difference over 10% were further adjusted with regression method.
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