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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