Division of Healthcare Quality Promotion, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA.
Lantana Consulting Group, East Thetford, Vermont, USA.
Transfusion. 2023 Oct;63 Suppl 4(Suppl 4):S8-S18. doi: 10.1111/trf.17360. Epub 2023 Apr 18.
National Blood Collection and Utilization Surveys (NBCUS) have reported decreases in U.S. blood collections and transfusions since 2008. The declines began to stabilize in 2015-2017, with a subsequent increase in transfusions in 2019. Data from the 2021 NBCUS were analyzed to understand the current dynamics of blood collection and use in the United States.
In March 2022, all community-based (53) and hospital-based (83) blood collection centers, a randomly selected 40% of transfusing hospitals performing 100-999 annual inpatient surgeries, and all transfusing hospitals performing ≥1000 annual inpatient surgeries were sent a 2021 NBCUS survey to ascertain blood collection and transfusion data. Responses were compiled, and national estimates were calculated for the number of units of blood and blood components collected, distributed, transfused, and outdated in 2021. Weighting and imputation were applied to account for non-responses and missing data, respectively.
Survey response rates were 92.5% (49/53) for community-based blood centers, 74.7% (62/83) for hospital-based blood centers, and 76.3% (2102/2754) for transfusing hospitals. Overall, 11,784,000 (95% confidence interval [CI], 11,392,000-12,177,000) whole blood and apheresis red blood cell (RBC) units were collected in 2021, a 1.7% increase from 2019; 10,764,000 (95% CI, 10,357,000-11,171,000) whole blood-derived and apheresis RBC units were transfused, a 0.8% decrease. Total platelet units distributed increased by 0.8%; platelet units transfused decreased by 3.0%; plasma units distributed increased by 16.2%; and plasma units transfused increased by 1.4%.
The 2021 NBCUS findings demonstrate a stabilization in U.S. blood collections and transfusions, suggesting a plateau has been reached for both.
自 2008 年以来，美国国家血液采集和利用调查（NBCUS）报告称美国血液采集和输血量有所下降。2015-2017 年，下降趋势开始趋于稳定，随后 2019 年输血量有所增加。对 2021 年 NBCUS 的数据分析，以了解美国目前血液采集和使用的动态。
2022 年 3 月，所有社区（53 个）和医院（83 个）采血中心、随机抽取的 40%开展 100-999 例年度住院手术的输血医院以及所有开展≥1000 例年度住院手术的输血医院，均收到 2021 年 NBCUS 调查，以确定血液采集和输血数据。汇总回复，计算 2021 年血液和血液成分采集、分配、输血和过期的单位数，计算全国估计数。分别采用加权和插补来处理不回复和缺失数据。
社区采血中心的调查回复率为 92.5%（49/53），医院采血中心为 74.7%（62/83），输血医院为 76.3%（2102/2754）。总的来说，2021 年采集了 1178.4 万（95%置信区间[CI]，1139.2 万至 1217.7 万）全血和单采红细胞（RBC）单位，比 2019 年增长 1.7%；1076.4 万（95%CI，1035.7 万至 1117.1 万）全血衍生和单采 RBC 单位被输血，减少 0.8%。血小板单位分发量增加 0.8%；血小板单位输血减少 3.0%；血浆单位分发量增加 16.2%；血浆单位输血增加 1.4%。
2021 年 NBCUS 的调查结果表明，美国血液采集和输血量趋于稳定，这表明两者都达到了一个平台期。
