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Table 3 Patient and surgical wound-related factors of patients undergone general surgery at specialized hospitals in the Amhara region, between march—April 2021 (n = 447)

From: Time to development of surgical site infection and its predictors among general surgery patients admitted at specialized hospitals in Amhara region, northwest Ethiopia: a prospective follow-up study

Variable

Category

Frequency

Percent

History of Previous Surgery

No

376

84.1

Yes

71

15.9

Preoperative Blood Transfusion

No

409

91.5

Yes

38

8.5

Surgical Wound Class

Clean

95

21.3

Clean-contaminated

352

78.7

ASA Score

ASA I

179

40.0

ASA II

118

26.4

ASA III

100

22.4

ASA IV

44

9.8

ASA V

6

1.4

Body Mass Index

18.5—24.9

355

79.4

 > 24.9

67

15.0

 < 18.5

25

5.6

Length of Pre-Operative Hospital Stay (hours)

Median

IQR

32

(18, 73)