Skip to main content

Table 3 The effect of ABO blood type on 30-day mortality in critically ill patients—individual patient data meta-analyses

From: ABO blood types and sepsis mortality

Blood type (percentage of cohort) Univariable Multivariablea
Fixed effect Heterogeneity Fixed effect Heterogeneity
HR (95%-CI) p I2 (%) p HR (95%-CI) p I2 (%) p
A (38%) 1.00      1.00     
B (14%) 0.88 (0.78–0.98) 0.02 13 0.32 0.87 (0.77–0.97) 0.01 16 0.30
O (44%) 0.97 (0.90–1.05) 0.42 0 0.69 0.96 (0.89–1.04) 0.33 0 0.82
AB (4%) 0.98 (0.82–1.18) 0.87 53 0.12 0.99 (0.82–1.18) 0.87 51 0.13
Non-B (86%) 1.00          
B (14%) 0.89 (0.80–0.99) 0.03 48 0.15 0.88 (0.80–0.98) 0.02 38 0.20
  1. aAll cohorts adjusted for age, sex, ischemic heart disease, previous stroke and whether the patient had a pulmonary infection focus. The analyses are stratified for recruiting centre