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Table 1 Comparison of the proportions of different diseases between the two groups

From: Effect of the COVID-19 pandemic on complications and mortality of patients with cardiac surgery

Type of disease All patients (n = 422) Control group (n = 292) Observation group (n = 130) P-value
Aortic dissection 53 17 36 0.000
V-A ECMO 5 3 2 0.654
Valvular heart disease 251 195 56 0.000
Constrictive pericarditis 2 0 2 0.344
Congenital heart disease 62 44 18 0.743
Coronary heart disease 49 33 16 0.766