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Table 1 Patient characteristics

From: Lower gastrointestinal bleeding—Computed Tomographic Angiography, Colonoscopy or both?

 

All patients

(n = 183)

CTA

(n = 32)

LE

(n = 122)

P

Age, median (range)

75 (21–99)

68 (21–94)

77 (33–99)

0.004

Male, n (%)

109 (59.6)

19 (59.4)

71 (58.2)

0.909

Hb (g/L), Mean ± SD

110 ± 27

102 ± 30

112 ± 24

0.090

MAP (mmHg), Mean ± SD

93 ± 18

85 ± 18

95 ± 16

0.006

HR, Mean ± SD

83 ± 16

82 ± 15

83 ± 16

0.881

SI, Mean ± SD

0.66 ± 0.22

0.72 ± 0.27

0.63 ± 0.18

0.082

Diagnostic, n (%)

 Diverticular

48 (26.2)

9 (28.1)

38 (31.1)

0.741

 Unknown location

41 (22.4)

5 (15.6)

21 (17.2)

0.831

 Colo-rectal lesion

34 (18.6)

5 (15.6)

27 (22.1)

0.419

 Post-interventional

23 (12.6)

2 (6.2)

17 (13.9)

0.239

 Small bowel

20 (10.9)

11 (34.4)

4 (3.3)

<0.001

 Colo-rectal neoplasia

17 (9.3)

0 (0)

15 (12.3)

0.037

  1. Comparison of baseline characteristics of patients who had CTA and patients who had LE. Significant P-values (<0.05) are indicated in bold characters. SI is defined as HR/Systolic blood pressure
  2. CTA Computed tomographic angiography, LE Lower endoscopy, Hb Hemoglobin level, MAP Mean arterial pressure, HR Heart rate, SI Shock index