Ou Y, Yau K K W, Poon C M, Hui Y V, Lee S S, Lee C K
Department of Management Sciences, City University of Hong Kong, Kowloon, Hong Kong.
Stanley Ho Centre for Emerging Infectious Diseases, The Chinese University of Hong Kong, Shatin, Hong Kong.
Transfus Med. 2015 Dec;25(6):366-73. doi: 10.1111/tme.12267. Epub 2016 Jan 5.
The aim of this study is to enhance the understanding of frequent blood donors' characteristics and devise strategies to achieve an optimal blood inventory.
Apart from donor recruitment and retention, an effective way to increase blood supply is to increase the donation frequency among donors. Understanding the characteristics of frequent donors will be helpful to impact their future donation pattern, which would in turn achieve a stable and adequate blood inventory to meet the changing demands of the society.
Demographic information of blood donors for each donation in Hong Kong (HK) was routinely collected and stored in the database of Hong Kong Red Cross Blood Transfusion Service. Logistic regression models (by gender group) with interaction effects were constructed to analyse the differences in the likelihood of being frequent donors and the associations with their demographic characteristics.
A total of 158,666 blood donors in 2010 gave 227,634 donations during the study. In general, male donors were more likely to be frequent donors. Logistic regression models further identified the characteristics of frequent donors in HK: older, blood type Rh D-ve and repeat donors, although their extent of impact was different for different gender group.
To achieve an optimal blood inventory to meet the challenge of ageing in the society, donors who donate less often should be targeted to increase their donation frequency. More efforts in promotion should be made to recruit those non-donors to join the blood donation pool and motivate 'targeted' existing donors in the population to participate blood donation more regularly.
本研究旨在加深对频繁献血者特征的理解，并制定策略以实现最佳血液库存。
除了招募和留住献血者外，增加血液供应的一种有效方法是提高献血者的献血频率。了解频繁献血者的特征将有助于影响他们未来的献血模式，进而实现稳定且充足的血液库存，以满足社会不断变化的需求。
香港红十字会输血服务中心的数据库中常规收集并存储了香港每位献血者每次献血的人口统计学信息。构建了具有交互作用的逻辑回归模型（按性别分组），以分析成为频繁献血者的可能性差异及其与人口统计学特征的关联。
2010年共有158,666名献血者进行了227,634次献血。总体而言，男性献血者更有可能成为频繁献血者。逻辑回归模型进一步确定了香港频繁献血者的特征：年龄较大、血型为Rh D阴性以及重复献血者，尽管不同性别组的影响程度有所不同。
为了实现最佳血液库存以应对社会老龄化的挑战，应针对献血频率较低的献血者提高其献血频率。应加大宣传力度，招募那些未献血者加入献血队伍，并激励目标人群中现有的献血者更定期地参与献血。
