Table 5 Postoperative Clinical Outcomes by Status of AKIa.

From: The Incidence, Risk Factors and Outcomes of Postoperative Acute Kidney Injury in Neurosurgical Critically Ill Patients

Outcomes

All patients (n = 624)

Non-AKI (n = 540)

AKI (n = 84)

P value

Duration of mechanical ventilation, hours

3 (1, 6)

3 (1, 5)

5 (3, 20)

<0.001

Reintubation, n (%)

19 (3.0)

10 (1.9)

9 (10.7)

<0.001

Tracheotomy, n (%)

19 (3.0)

11 (2.0)

8 (9.5)

0.002

RRT, n (%)

2 (0.3)

0 (0)

2 (2.4)

0.018

ICU mortality, n (%)

13 (2.1)

2 (0.4)

11 (13.1)

<0.001

Hospital mortality, n (%)

15 (2.4)

2 (0.4)

13 (15.5)

<0.001

ICU length of stay, days

1 (1, 2)

1 (1, 2)

2 (1, 3)

<0.001

Hospital length of stay, days

14 (10, 18)

13 (10, 18)

15 (11, 23)

0.029

Total ICU costs, CNY

8888 (6959, 13470)

8549 (6894, 12758)

11658 (8126, 23985)

<0.001

  1. aContinuous variables were expressed as mean ± SD or median (25th percentile–75th percentile, IQR); Categorical variables were expressed as a number (%). Abbreviations: AKI, acute kidney injury; RRT, renal replacement therapy ICU, intensive care unit; CNY, Chinese yuan.
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