Identification of risk factors for postoperative stage 3 acute kidney injury in patients who received surgical repair for acute type A aortic dissection

Table 3 Operative variables of the unmatched and propensity matched groups

Variables	Total (n = 993)	Overall cohort			PSM Cohort
Variables	Total (n = 993)	Stage 3 (n = 236)	Control (n = 757)	P value*	Stage 3 (n = 119)	Control (n = 119)	P value*
TAR (%)	478 (48.1)	131 (55.5)	347 (45.8)	0.009	71 (59.7)	75 (63.0)	0.594
CABG (%)	59 (5.9)	22 (9.3)	37 (4.9)	0.012	12 (10.1)	10 (8.4)	0.654
CPB time (min)	233.8 ± 68.0	258.6 ± 74.6	226.1 ± 63.9	< 0.001	258.3 ± 66.2	261.8 ± 73.3	0.701
Aortic cross-clamp time (min)	164.2 ± 55.6	176.7 ± 61.6	160.3 ± 53.1	< 0.001	180.8 ± 62.2	182.9 ± 61.7	0.801
DHCA time (min)	29.3 ± 12.9	32.1 ± 13.5	28.5 ± 12.6	< 0.001	32.0 ± 14.5	29.8 ± 11.8	0.216

Data presented as n (%), median (IQR), or mean ± standard deviation
TAR total arch replacement; CABG coronary artery bypass graft; CPB cardiopulmonary bypass; DHCA deep hypothermic circulatory arrest; PSM propensity score matching
*P values indicate differences between stage 3 AKI and control group patients. P < 0.05 was considered statistically significant

ISSN: 1471-2482