Bleed volume and hematology test results at study entry and outcomes
. | Transfusion of RBC . | Transfusion of total allogeneic blood products (RBCs + FFP + platelets)* . | Total blood loss . | Invasive procedure . | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
. | <4 U (n = 324) . | ≥4 U (n = 32) . | MW statistic, P . | <8 U (n = 330) . | ≥8 U (n = 26) . | MW statistic, P . | ≤2500 mL (n = 310) . | >2500 mL (n = 37) . | MW statistic, P . | Not required (n = 315) . | Required (n = 41) . | MW statistic, P . |
Age (y) | 31 | 30 | .88 | 30 | 31 | .98 | 30 | 31 | .22 | 30 | 31 | .84 |
27-33 | 26-34 | 26-34 | 28-33 | 26-34 | 29-34 | 26-34 | 26-34 | |||||
BMI (kg/m2) | 26 | 26 | .78 | 26 | 28 | .43 | 26 | 26 | .79 | 26 | 26 | .95 |
22-29 | 23-30 | 23-30 | 24-29 | 23-30 | 23-29 | 23-30 | 23-29 | |||||
Hb on admission (g/L) | 121 | 115 | .004 | 121 | 113 | .007 | 121 | 119 | .90 | 121 | 119 | .74 |
113-139 | 106-123 | 113-128 | 106-123 | 113-128 | 112-128 | 113-128 | 113-128 | |||||
Estimated blood loss at study entry (mL) | 1200 | 1400 | .21 | 1200 | 1350 | .48 | 1200 | 1600 | <.001 | 1200 | 1250 | .5 |
1000-1500 | 1045-1800 | 1000-1500 | 1200-1712 | 1000-1500 | 1200-2000 | 1000-1500 | 1100-1790 | |||||
Hb at study entry (g/L) | 104 | 84 | <.001 | 104 | 81 | <.001 | 110 | 94 | .002 | 104 | 96 | .02 |
95-113 | 68-102 | 95-113 | 67-103 | 95-113 | 84-105 | 94-103 | 84-107 | |||||
Clauss fibrinogen (g/L) | 3.9 | 2.4 | <.001 | 3.9 | 2.1 | <.001 | 3.9 | 2.8 | <.001 | 3.8 | 3.6 | <.001 |
3.2-4 | 1.9-3.5 | 3.2-4.5 | 1.8-3.4 | 3.2-4.5 | 2.1-3.8 | 3.1-4.5 | 2.4-4.1 | |||||
Fibtem A5 (mm) | 19 | 13 | <.001 | 19 | 12 | <.001 | 19 | 13 | <.001 | 19 | 17 | .01 |
17-23 | 10-17 | 17-23 | 7-17 | 17-23 | 10-19 | 16-23 | 12-22 | |||||
PT (s) | 10.5 | 11.3 | <.001 | 10.5 | 11.3 | <.001 | 10.5 | 10.7 | .009 | 10.5 | 11.1 | .08 |
10.1-11.0 | 10.5-12.3 | 10.1-11 | 10.5-12.3 | 10.1-11.0 | 10.3-11.6 | 10.0-10.8 | 10.3-11.6 | |||||
aPTT (s) | 24.6 | 25.6 | .047 | 24.6 | 26.2 | .015 | 24.6 | 25.9 | .035 | 24.6 | 24.8 | .09 |
22.9-26.5 | 24-28.8 | 22.9-26.5 | 24.3-30.9 | 22.9-26.5 | 23.9-27.4 | 22.9-26.6 | 23.8-26.8 | |||||
Platelet number (×109/L) | 171 | 192 | .22 | 171 | 192 | .31 | 173 | 192 | .31 | 159 | 192 | .03 |
134-239 | 155-241 | 138-240 | 154-240 | 144-230 | 154-241 | 127-226 | 154-243 |
. | Transfusion of RBC . | Transfusion of total allogeneic blood products (RBCs + FFP + platelets)* . | Total blood loss . | Invasive procedure . | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
. | <4 U (n = 324) . | ≥4 U (n = 32) . | MW statistic, P . | <8 U (n = 330) . | ≥8 U (n = 26) . | MW statistic, P . | ≤2500 mL (n = 310) . | >2500 mL (n = 37) . | MW statistic, P . | Not required (n = 315) . | Required (n = 41) . | MW statistic, P . |
Age (y) | 31 | 30 | .88 | 30 | 31 | .98 | 30 | 31 | .22 | 30 | 31 | .84 |
27-33 | 26-34 | 26-34 | 28-33 | 26-34 | 29-34 | 26-34 | 26-34 | |||||
BMI (kg/m2) | 26 | 26 | .78 | 26 | 28 | .43 | 26 | 26 | .79 | 26 | 26 | .95 |
22-29 | 23-30 | 23-30 | 24-29 | 23-30 | 23-29 | 23-30 | 23-29 | |||||
Hb on admission (g/L) | 121 | 115 | .004 | 121 | 113 | .007 | 121 | 119 | .90 | 121 | 119 | .74 |
113-139 | 106-123 | 113-128 | 106-123 | 113-128 | 112-128 | 113-128 | 113-128 | |||||
Estimated blood loss at study entry (mL) | 1200 | 1400 | .21 | 1200 | 1350 | .48 | 1200 | 1600 | <.001 | 1200 | 1250 | .5 |
1000-1500 | 1045-1800 | 1000-1500 | 1200-1712 | 1000-1500 | 1200-2000 | 1000-1500 | 1100-1790 | |||||
Hb at study entry (g/L) | 104 | 84 | <.001 | 104 | 81 | <.001 | 110 | 94 | .002 | 104 | 96 | .02 |
95-113 | 68-102 | 95-113 | 67-103 | 95-113 | 84-105 | 94-103 | 84-107 | |||||
Clauss fibrinogen (g/L) | 3.9 | 2.4 | <.001 | 3.9 | 2.1 | <.001 | 3.9 | 2.8 | <.001 | 3.8 | 3.6 | <.001 |
3.2-4 | 1.9-3.5 | 3.2-4.5 | 1.8-3.4 | 3.2-4.5 | 2.1-3.8 | 3.1-4.5 | 2.4-4.1 | |||||
Fibtem A5 (mm) | 19 | 13 | <.001 | 19 | 12 | <.001 | 19 | 13 | <.001 | 19 | 17 | .01 |
17-23 | 10-17 | 17-23 | 7-17 | 17-23 | 10-19 | 16-23 | 12-22 | |||||
PT (s) | 10.5 | 11.3 | <.001 | 10.5 | 11.3 | <.001 | 10.5 | 10.7 | .009 | 10.5 | 11.1 | .08 |
10.1-11.0 | 10.5-12.3 | 10.1-11 | 10.5-12.3 | 10.1-11.0 | 10.3-11.6 | 10.0-10.8 | 10.3-11.6 | |||||
aPTT (s) | 24.6 | 25.6 | .047 | 24.6 | 26.2 | .015 | 24.6 | 25.9 | .035 | 24.6 | 24.8 | .09 |
22.9-26.5 | 24-28.8 | 22.9-26.5 | 24.3-30.9 | 22.9-26.5 | 23.9-27.4 | 22.9-26.6 | 23.8-26.8 | |||||
Platelet number (×109/L) | 171 | 192 | .22 | 171 | 192 | .31 | 173 | 192 | .31 | 159 | 192 | .03 |
134-239 | 155-241 | 138-240 | 154-240 | 144-230 | 154-241 | 127-226 | 154-243 |