Table 4.

Bleeding and transfusion data

Variable	Percent or mean, SD (Median, range) n = 964)
24-hour chest tube drainage (ml)	439 ± 280 (380, 8–2740)
Allogeneic blood products transfusion	325 (33.7%)
Magnitude of Donor Units Transfused
Red Blood Cells (units)	1.0 ± 1.9 (0, 0–17)
Fresh Frozen Plasma (units)	0.3 ± 1.2 (0, 0–18)
Platelets (units)*	0.3 ± 1.8 (0, 0–22)
Cryoprecipitate (units)*	0.1 ± 1.1 (0, 0–20)
Total (units)	1.7 ± 4.7 (0, 0–70)
Preoperative hematocrit (%)	40.7 ± 4.6 (41.1, 24.0-56.9)
Discharge hematocrit (%)	33.4 ± 9.3 (32.9, 22.7-28.4)

*One pack of platelets contains five units (five donors) and one pack of cryoprecipitate contains ten units (ten donors).