Table 1 Characteristics of older patients stratified by surgical procedure

Patient variable

 Age [years], median (IQR)

73 (70–81)

80 (73–85)

< 0.001

 Female sex, n (%)

41 (43.6)

92 (49.5)

0.38

 BMI: median (IQR)

kg/m²

22.6 (19.8–25.3)

21.3 (19.0–23.7)

0.01

Vital Signs, median (IQR)

 Respiratory Rate

/min

18 (16–20)

19 (17–23)

0.03

 Heart Rate

/min

84 (72–96)

89 (75–100)

0.04

 Systolic Blood Pressure

mmHg

130 (118–154)

134 (111–155)

0.81

 Body Temperature

^◦C

36.7 (36.3–37.3)

36.6 (36.3–37.0)

0.48

CCI, n, (%)

< 0.001

 ≥ 4

50 (53.2)

137 (73.7)

Blood tests, median (IQR)

 pH

7.39 (7.36–7.43)

7.41 (7.37–7.44)

0.03

 Lactate

mg/dL

16 (11–22)

18 (12–32)

0.16

 Albumin

g/dL

4.0 (3.6–4.3)

3.5 (2.9–4.0)

< 0.001

 White Blood Cell

× 1000/μL

13 (8.1–15)

9.5 (6.6–13)

< 0.01

 Platelet

× 10000/μL

20.8 (18.0–26.1)

22.5 (17.1–28.5)

0.43

 Hemoglobin

g/dL

13.5 (12.6–14.9)

12.3 (10.4–13.8)

< 0.001

 Creatine

mg/dL

0.9 (0.7–1.1)

0.9 (0.7–1.5)

0.31

C-reactive protein

mg/dL

3.6 (0.3–13)

2.2 (0.2–13)

0.93

 Bilirubin

mg/dL

0.9 (0.6–1.5)

0.8 (0.6–1.1)

0.11

ASA score, n, (%)

< 0.001

 I

10 (10.6)

3 (1.6)

 II

68 (72.3)

90 (48.4)

 III

15 (16.0)

83 (44.6)

 IV

1 (1.1)

10 (5.4)