Table.1 Preoperative patient characteristics

Age, y, median (median, range)

74.33, 64–94

71.5, 58–81

72.0, 43–83

70.1, 56–82

Gender (%)

 Male

8 (88.9%)

8 (80.0%)

12 (85.7%)

25 (69.4%)

 Female

1 (11.1%)

2 (20.0%)

2 (14.3%)

11 (30.6%)

BMI^a, kg/m2 (median, range)

22.3, 20.5–32.3

21.7, 19.3–28.8

22.5, 19.0–31.9

23.1, 17.3–29.7

Albumin, g/dl (median, range)

4.0, 3.3–4.6

3.9, 3.4–4.6

4.4, 3.6–4.8

4.1, 3.0–4.6

Hemoglobin, g/dl (median, range)

13.2, 10.7–14.6

12.8, 11.7–14.9

13.7, 9.2–15.3

13.2, 8.6–15.5

Lymphocytes count, × 10² /μL (median, range)

15.5, 11.8–29.1

16.1, 14.1–22.7

15.6, 11.5–31.2

15.2, 2.5–23.8