Table 1 Unmatched pre-operative demographic, clinical, and echocardiographic parameters (without regurgitation patients)

Age / years

71 (65; 76)

74 (69; 79)

<0.001*

% Female (n)

32% (80)

55% (55)

0.060

BMI / kgm^-2

28.6 ± 5.2

28.6 ± 5.1

0.990

EuroSCORE II

1.69 (1.1; 2.7)

1.89 (1.3; 2.9)

0.081

Diabetes

26% (66)

23% (31)

0.534

Previous or current smoker

54% (136)

56% (74)

0.756

Previous PCI

9.6% (24)

6.1% (8)

0.235

Hypertension

76% (190)

73% (97)

0.589

‘Good’ EF (>50%)

85% (213)

84% (111)

0.508

‘Moderate’ EF (30-49%)

12% (31)

11% (15)

Poor EF (<30%)

2.4% (6)

4.6% (6)

Concomitant CABG / %

42% (106)

39% (51)

0.477

Valve size 21 mm / %

18% (44)

17% (22)

0.004*

Valve size 23 mm / %

46% (115)

33% (43)

Valve size 25 mm / %

31% (78)

36% (48)

Valve size 27 mm / %

5.2% (13)

14% (19)