. Author manuscript; available in PMC: 2020 Jun 1.

Published in final edited form as: Crit Care Med. 2019 Jun;47(6):e437–e444. doi: 10.1097/CCM.0000000000003710

Table 3.

Outcomes of patients undergoing non-cardiac major surgery by post-operative AKI.

Variable (n=3499)	No AKI (n=1536)	Early AKI (n=1459)	Late AKI (n=504)	p-value^*	p-value^**
LOS in ICU, median(IQR)	3.00(2.00)	4.00(6.00)	6.00(9.00)	<0.001	<0.001
LOS in hospital, median(IQR)	10.00(10.00)	14.0(14.00)	17.50(18.25)	<0.001	<0.001
Hospital mortality, n(%)	67(4.4%)	155(10.6%)	38(7.5%)	<0.001	0.06
90-day mortality, n(%)	123(8.0%)	229(15.7%)	61(12.1%)	<0.001	0.06
365-day mortality, n(%)	260(16.9%)	387(26.5%)	108(21.4%)	<0.001	0.03
Death or dialysis at day 90, n(%)	123(8.0%)	233(16.0%)	61(12.1%)	<0.001	0.04
Death or dialysis at day 365, n(%)	260(16.9%)	391(26.8%)	109(21.6%)	<0.001	0.03

LOS: length of stay. For continuous variables, ANOVA or Kruskal-Wallis test was used; for categorical variables, Chi-square test was used.

^*:

overall p-value is for comparison among no AKI, early AKI and late AKI.

^**:

p-value is for comparison between early AKI and late AKI, less than 0.0167 indicates significance due to multiple comparison adjustment; only shown if overall p-value is significant.