Table 1 Baseline characteristics (intention-to-treat)

Sex (%)

Female

63 (35.6)

55 (31.1)

0.367^a

Age (years)

Mean (± standard deviation)

53.4 (13.8)

52.3 (13.5)

0.422^b

Body mass index (kg/m²)

Mean (± standard deviation)

26.7 (6.5)

25.8 (4.9)

0.139^b

Current chemotherapy (%)

Yes

3 (1.7)

5 (2.8)

0.474^a

Current smoking (%)

Yes

38 (21.5)

22 (12.4)

0.023^a

ASA score (%)

I

32 (18.1)

30 (16.9)

0.768

II

106 (59.9)

110 (62.1)

III

36 (20.3)

36 (20.3)

IV

3 (1.7)

1 (0.6)