Female Sex Is Not an Independent Risk Factor for Poor Prognosis of Patients with Acute Type A Aortic Dissection Undergoing Surgery

Table 2

Operative details.

	Unmatched				Weighted
	Overall n = 1448	Female n = 352	Male n = 1096	value	Female n = 261.5	Male n = 250.5	P value
Aortic root sparing (%)	1102 (76.1)	298 (84.7)	804 (73.4)		215.6 (82.5)	178.4 (71.2)
Bentall (%)	323 (22.3)	50 (14.2)	273 (24.9)		42.8 (16.4)	66.1 (26.4)
David (%)	7 (0.5)	0 (0.0)	7 (0.6)	0.289	0.0 (0.0)	3.1 (1.2)
Wheats (%)	16 (1.1)	4 (1.1)	12 (1.1)	1	3.1 (1.2)	3.0 (1.2)	0.968
Total arch replacement (%)	13 (0.9)	4 (1.1)	9 (0.8)	0.825	2.4 (0.9)	1.1 (0.4)	0.340
Total arch replacement + frozen elephant trunk (%)	1031 (71.2)	200 (56.8)	831 (75.8)		162.5 (62.2)	164.7 (65.7)	0.334
Aortic balloon occlusion (%)	74 (5.1)	21 (6.0)	53 (4.8)	0.402	17.4 (6.7)	11.2 (4.5)	0.180
Hybrid (%)	170 (11.7)	70 (19.9)	100 (9.1)		43.8 (16.8)	41.7 (16.6)	0.968
Hemiarch (%)	87 (6.0)	39 (11.1)	48 (4.4)		24.3 (9.3)	18.7 (7.5)	0.412
Ascending aorta replacement (%)	73 (5.0)	18 (5.1)	55 (5.0)	0.943	11.0 (4.2)	13.1 (5.2)	0.519
Ascending aorta-femoral artery bypass (%)	23 (1.6)	5 (1.4)	18 (1.6)	0.772	5.0 (1.9)	4.8 (1.9)	0.997
Coronary artery bypass graft (%)	165 (11.4)	47 (13.4)	118 (10.8)	0.184	34.9 (13.4)	27.8 (11.1)	0.372
Hypothermic circulatory arrest (%)	1131 (78.1)	243 (69.0)	888 (81.0)		189.2 (72.4)	184.5 (73.7)	0.705
Operation time (median (IQR), hours)	6.3 (5.3, 7.5)	6.1 (5.1, 7.1)	6.4 (5.4, 7.7)		6.3 (5.2, 7.0)	6.3 (5.3, 7.4)	0.117
Cardiopulmonary bypass time (median (IQR), minutes)	172.0 (138.0, 208.0)	160.0 (128.0, 201.0)	174.0 (141.0, 212.0)		172.0 (132.0, 197.2)	172.0 (138.0, 200.0)	0.344
Aortic cross-clamp time (median (IQR), minutes)	95.0 (76.0, 115.0)	93.0 (72.0, 112.0)	95.0 (79.0, 116.0)		95.0 (74.0, 109.0)	94.0 (75.0, 112.0)	0.789

Statistically significant. IQR: interquartile range.