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Table 4 Baseline characteristics according to preoperative high-sensivity c-reactive protein

From: Hemoglobin and B-type natriuretic peptide preoperative values but not inflammatory markers, are associated with postoperative morbidity in cardiac surgery: a prospective cohort analytic study

Hs C-reactive protein

Quintile 1 (0.02 - 0.19) (n = 114)

Quintile 2 (0.2 – 0.42 ) (n =111)

Quintile 3 (0.43 – 0.78) (n =108)

Quintile 4 ( 0.79 – 2.14) (n = 111)

Quintile 5 (2.15 - 16) (n = 110)

Trend test

Mean age (SD)

58.7 (11.3)

57.9 (12.5)

60.1 (10.9)

61.4 (9.7)

61.9 (10.8)

P = 0.01

Males (%)

74.5

71.1

68.5

78.3

76.3

P = 0.42

Residents in a city with an altitude of 2000- 3000 m (%)

75.4

79.2

87.9

81.9

86.3

P = 0.03

Mean ejection fraction (%)

51.8 (12.3)

54.9 (11.1)

52.3 (11.9)

50.7 (11.5)

50.7 (11.5)

P = 0.06

Diabetes mellitus (%)

19.3

22.5

20.3

19.8

18.1

P = 0.69

Acute coronary syndrome ≤ 30 days (%)

10.5

18.9

30.5

51.3

60.0

P < 0.001

Obesity (%)

11.4

23.4

22.2

19.8

12.7

P = 0.96

Previous cardiac surgery (%)

7.0

9.9

6.4

6.3

2.7

P = 0.10

Proportion of patients undergoing CABG (%)

59.6

62.1

72.2

77.4

78.1

P < 0.001