A comparative study was made between 146 patients receiving blood transfusion at the State Hospital, Sarajevo, in a 3-month period of peace (group 1) and 250 patients receiving transfusions in a 3-month period of war (group 2). In group 1, trauma accounted for only 7% of transfusions while it accounted for 99% in group 2. The threshold for transfusion was increased in war and the mean pretransfusion haematocrit in group 2 was 21%, compared with 27% in group 1 (P < 0.001). Less blood was also transfused per patient in war with a mean transfusion volume of 1.1 units in group 2 compared with 2.6 units in group 1 (P < 0.001). The reasons and justification for such a conservative transfusion practice in a besieged city are discussed.
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机译：在三个月的和平时期（第1组）中有146名在萨拉热窝国立医院接受输血的患者（第1组）和在战争的3个月中有250例接受输血的患者（第2组）之间进行了比较研究。在第1组中，创伤仅占输血的7％，而在第2组中占99％。战争中的输血阈值增加，第2组的平均输血前血细胞比容为21％，而第1组为27％（ P <0.001）。战争中每位患者的输血量也更少，第2组的平均输血量为1.1单位，而第1组为2.6单位（P <0.001）。讨论了在被围困的城市采取这种保守输血做法的原因和理由。
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