Table 4 Comparison of the outcomes of patients with blood type O versus those of other blood types.

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

 

Type O, n = 288

Non-O type, n = 632

p-value

Primary outcome

In-hospital mortality, n (%)

64 (22.2)

80 (12.7)

< 0.001

Secondary outcomes

Death due to exsanguination, n (%)

50 (17.3)

63 (10.0)

0.002

Death due to other reasons, n (%)

14 (4.9)

17 (2.7)

0.021

Ventilation-free days, median [IQR]

17 [4–27]

27 [19–28]

< 0.001

Median RBC volume administered within 24 h, units [IQR]

6 [0–18]

0 [0–10]

< 0.001

  1. IQR interquartile range, RBC red blood cell.