Table 2 Bleeding and transfusion-related data of the patients according to preoperative use of low-dose acetylsalicylic acid (LdAA)

Hemoglobin (g/L) at baseline

126 (15.8)

124 (14.2)

0.16

Platelet count (×10^9/L)

264 (125)

263 (90)

0.97

APTT

33.1 (5.9)

31.6 (4.1)

0.02

INR

1.07 (0.12)

1.04 (0.09)

0.01

Patients transfused pre- or intraoperatively

47 (39.8)

49 (35.8)

1.5 (0.78, 2.8)

0.23

Units transfused pre- or intraoperatively

0.7 (0.9)

0.7 (1.0)

0.1 (-0.1, 0.3)

0.27

Bleeding intraoperatively (mL)

363 (235)

316 (329)

45 (-27, 117)

0.22

Patients transfused postoperatively

74 (62.7)

76 (54)

1.8 (1.04, 3.3)

0.04

Units transfused postoperatively

1.3 (1.3)

1.1 (1.2)

0.3 (-0.01, 0.62)

0.06

Hemoglobin day 1 (g/L)

109 (11.1)

108 (10.4)

0.3 (-2.4, 3.0)

0.89

Hemoglobin day 5 (g/L)^†

111 (10.7)

113 (9.5)

-1.9 (-4.5, 0.77)

0.11