Goldman Mindy, Steele Whitney R, Di Angelantonio Emanuele, van den Hurk Katja, Vassallo Ralph R, Germain Marc, O'Brien Sheila F
Canadian Blood Services, Ottawa, Ontario, Canada.
American Red Cross, Rockville, Maryland.
Transfusion. 2017 Oct;57(10):2469-2476. doi: 10.1111/trf.14307. Epub 2017 Sep 4.
We compared donor and general population demographics over time to provide insight into current donation patterns and the future adequacy of the blood supply.
Seventeen blood center members of the Biomedical Excellence for Safer Transfusion (BEST) Collaborative from 12 countries provided the number of donors and people in the general population by demographic category for 2001 and 2011, changes in age criteria, and percentage of first-time donors. We calculated the median age of donors and the general population and determined the percentage of each group in age and sex cohorts.
Age criteria vary, with upper limits recently liberalized in several countries. In 2011, the percentage of first-time donors ranged from 10% to 41%. The median age of the donor and general population increased from 2001 to 2011 in most countries, as did the percentage of the general population over 60. The youngest donor cohort is overrepresented to a variable degree; this tendency increased over time. Although still underrepresented, older donors contributed more in 2011. A large middle-aged cohort is aging at a rate exceeding the progression of time, while 25- to 45-year-olds are relatively underrepresented.
All participating countries are experiencing aging of their general population. Donor demographics differ substantially between countries; this can be only partly explained by population demographics and age criteria. Many countries have an aging middle-aged donor and population cohort and are increasingly relying on their youngest donors to contribute disproportionately to the blood supply.
我们比较了不同时间的献血者和普通人群的人口统计学特征，以深入了解当前的献血模式和未来血液供应的充足性。
来自12个国家的17个“安全输血生物医学卓越合作组织”（BEST）协作组的血液中心成员提供了2001年和2011年按人口统计学类别划分的献血者数量和普通人群数量、年龄标准的变化以及首次献血者的百分比。我们计算了献血者和普通人群的年龄中位数，并确定了各年龄和性别人群组中每组的百分比。
年龄标准各不相同，最近几个国家放宽了年龄上限。2011年，首次献血者的百分比在10%至41%之间。在大多数国家，从2001年到2011年，献血者和普通人群的年龄中位数以及60岁以上普通人群的百分比都有所增加。最年轻的献血者群体在不同程度上占比过高；这种趋势随着时间的推移而增加。尽管老年献血者的占比仍然较低，但在2011年他们的贡献更大。一个庞大的中年人群体的老龄化速度超过了时间的推移，而25至45岁的人群相对占比不足。
所有参与国家的普通人群都在老龄化。不同国家的献血者人口统计学特征存在很大差异；这只能部分地由人口统计学特征和年龄标准来解释。许多国家的中年献血者和人群正在老龄化，并且越来越依赖最年轻的献血者为血液供应做出不成比例的贡献。
