Table 1 Baseline characteristics of patients categorized according to blood type.

From: The impact of blood type on the mortality of patients with severe abdominal trauma: a multicenter observational study

 

O, n = 288

A, n = 345

B, n = 186

AB, n = 101

p-value

Characteristics

Age (years), median [IQR]

48 [30–68]

42 [29–63]

51 [35–66]

42 [28–66]

0.099

Male sex, n (%)

191 (66.3)

249 (72.2)

133 (71.5)

69 (68.3)

0.410

Blunt trauma, n (%)

260 (90.3)

305 (88.4)

173 (93.0)

95 (94.1)

0.087

RTS, median [IQR]

6.90 [5.70–7.84]

7.84 [6.61–7.84]

7.84 [6.61–7.84]

7.84 [6.81–7.84]

0.007

ISS, median [IQR]

19 [16–25]

18 [14–24]

17 [13–24]

18 [16–24]

0.061

AIS head, median [IQR]

0 [0–1]

0 [0–0]

0 [0–1]

0 [0–1]

0.372

AIS face, median [IQR]

0 [0–0]

0 [0–0]

0 [0–0]

0 [0–0]

0.215

AIS chest, median [IQR]

2 [0–2]

2 [0–2]

1 [0–2]

0 [0–2]

0.083

AIS abdomen, median [IQR]

4 [3, 4]

3 [3, 4]

3 [3, 4]

4 [3, 4]

0.141

AIS pelvis, median [IQR]

1 [0–2]

0 [0–2]

0 [0–2]

0 [0–2]

0.078

AIS surface, median [IQR]

0 [0–1]

0 [0–1]

0 [0–1]

0 [0–1]

0.130

Interventions

Surgery, n (%)

62 (28.5)

45 (13.0)

29 (15.6)

18 (17.8)

< 0.001

IVR, n (%)

40 (13.9)

30 (9.0)

19 (10.2)

12 (11.9)

0.018

Both, n (%)

31 (10.8)

22 (6.4)

15 (8.1)

6 (5.9)

0.018

  1. Categorical variables are expressed as numbers (%), while continuous variables are presented as medians (25th–75th percentiles).
  2. AIS abbreviated injury scale, IQR interquartile range, RTS revised trauma score, ISS injury severity score, IVR interventional radiology.