. Author manuscript; available in PMC: 2022 Apr 1.

Published in final edited form as: J Thorac Cardiovasc Surg. 2019 Nov 25;161(4):1346–1355.e3. doi: 10.1016/j.jtcvs.2019.11.004

Table 5.

Unadjusted and adjusted primary and secondary outcomes of the entire cohort by acute kidney injury.

	Stage 1 AKI		Stage 2 & 3 AKI
Outcomes	Odds Ratio (95% CI)	P value	Odds Ratio (95% CI)	P value
In-hospital mortality
Unadjusted^*	4.394 (1.812-10.656)	.001	10.508 (3.181-34.709)	<.001
Propensity matched^†	2.030 (0.597-6.902)	.26	8.089 (0.865-75.664)	.07

Infection
Unadjusted^*	2.992 (2.120-4.224)	<.0001	6.003 (3.276-11.003)	<.001
Propensity matched^†	2.242 (1.373-3.662)	.001	3.570 (1.449-8.799)	.01

Stroke
Unadjusted^*	2.806 (1.203-6.546)	.02	3.592 (0.795-16.231)	.10
Propensity matched^†	1.343 (0.454-3.977)	.59	3.872 (0.336-44.602)	.28

ICU length of stay greater than 72 hours
Unadjusted^*	3.353 (2.576-4.365)	<.0001	7.036 (3.581-13.825)	<.001
Propensity matched^†	2.381 (1.714-3.309)	<.0001	7.674 (3.521-16.728)	<.001

Hospital length of stay^‡
Unadjusted^*	1.449 (1.353-1.551)	<.0001	1.822 (1.578-2.103)	<.001
Propensity matched^†	1.301 (1.167-1.451)	<.0001	1.858 (1.394-2.475)	<.001

Abbreviations: AKI, acute kidney injury; CI, confidence interval; ICU, intensive care unit.

Sample size was 1,271 for no AKI and 297 for stage 1 AKI and 1,271 for no AKI and 52 for stage 2 & 3 AKI.

^†

Sample size was 277 for no AKI and 277 for stage 1 AKI and 92 for no AKI and 49 for stage 2 & 3 AKI.

^‡

Length of stay was fitted to a negative binomial model.