Table 1 Baseline information of study subjects

Age

63.44 ± 10.91

63.53 ± 8.51

64.60 ± 11.89

0.764

Gender

35/17

41/27

52/31

0.729

BMI

24.51 ± 2.37

23.54 ± 2.92

23.67 ± 2.64

0.110

Smoking

29/23

37/31

43/40

0.894

Basic disease

0.957

Hypertension

-

30, 44.12%

36, 43.37%

Diabetes

-

28, 41.18%

39, 46.99%

Coronary heart disease

-

11, 16.18%

15, 18.07%

Others

-

5, 7.35%

8, 9.64%

LAC

-

1.72 ± 0.29

3.38 ± 0.79

< 0.001

PCT

-

1.20 ± 0.27

2.34 ± 0.48

< 0.001

PSI socre

-

81.07 ± 7.74

130.43 ± 10.88

< 0.001

NLR

-

7.68 ± 1.37

8.05 ± 0.79

0.054