Table 1 Baseline characteristics presented as median [IQR] or incidence (%)

Age (y)

68 [57, 84]

62 [57, 68]

66 [62, 70]

BMI (kg/m²)

23.5 [22.8, 27.8]

23.4 [21.2, 28.3]

24.4 [21.6, 30.4]

Sex (female/male)

5/8 (39% / 61%)

5/9 (36% / 64%)

2/12 (14% / 86%)

ASA (2/3/4)

10/2/1 (77%/15%/8%)

12/2/0 (86%/14%/0%)

7/7/0 (50%/50%/0%)

Ischemic heart disease

0/13 (0%/100%)

1/13 (7%/93%)

0/12 (0%/100%)

Hypertension

9/4 (69%/31%)

7/7 (50%/50%)

7/7 (50%/50%)

Diabetes mellitus

1/12 (8%/92%)

0/14 (0%/100%)

3/11 (21%/79%

B-Hb (g/L)

124 [116, 130]

130 [112, 142]

129 [116, 143]

Plasma albumin (g/L)

34 [32, 39]

37 [33, 38]

36 [34, 37]

Plasma creatinine (µmol/L)

81 [70, 94]

81 [72, 97]

86 [74, 105]

GFR (mL/min)

78 [69, 89]

83 [65, 90]

82 [65, 89]