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Table 1 Baseline characteristics in the study cohorts

From: ABO blood types and sepsis mortality

Characteristic Procalcitonin and survival study (PASS) (n = 936) Transfusion requirements in septic shock (TRISS) trial (n = 856) Cleveland clinics medical ICU cohort (n = 10,550)
Median age—years (IQR) 67 (58–76) 66 (58–74) 64 (54–74)
Male sex—no. (%) 515 (55) 390 (46) 5502 (52)
Median BMI—index (IQR) 25 (22–28)   28 (23–34)
Median weight—kg (IQR) 75 (63–87) 75 (64–87) 80 (66–98)
Blood type—no. (%)    
 A 420 (45) 368 (43) 3942 (37)
 B 102 (11) 95 (11) 1523 (14)
 AB 39 (4) 31 (4) 433 ( 4)
 O 375 (40) 362 (42) 4652 (44)
Diabetes—no. (%) 138 (15) 4552 (43)
Hypertension—no. (%) 168 (18) 7109 (67)
Charlson Score ≥ 2—no. (%) 333 (36) 8828 (84)
Median SOFA—score (IQR) 7 (4–9) 10 (8–12) 6 (4–9)
Mechanical ventilation—no. (%) 629 (67) 611 (71) 1356 (13)
Median creatinine µmol/L (IQR) 127 (80–215) 131 (79–203) 129 (80–241)
Renal replacement therapy—no. (%) 152 (16) 103 (12) 148 ( 1)
Median urinary output—mL/kg/h (IQR) 1.1 (0.5–1.7)  
Median MAP—mmHg (IQR) 71 (61–84) 58 (52–63) 63 (54–72)
Vasopressor treatment—no. (%) 433 (46) 765 (89) 2330 (22)
Inotropic treatment—no. (%) 201 (22)
Septic shock—no. (%) 603 (64) 856 (100) 4714 (55)
Median platelet count— × 106/L (IQR) 234 (148–333) 165 (93–244)
Median WBC—× 106/L (IQR) 13 (9–19)
Median bilirubin—µmol/L (IQR) 10 (5–18) 12 (7–27)