Donation frequency and its association with demographic characteristics--a 1-year observational study

Area of Science:

• Transfusion Medicine
• Public Health

Background:

• Increasing blood supply requires boosting donation frequency.
• Understanding frequent blood donor characteristics aids in maintaining an adequate blood inventory.
• Societal demands for blood necessitate stable and sufficient blood supplies.

Purpose of the Study:

• To characterize frequent blood donors in Hong Kong.
• To identify demographic factors associated with frequent blood donation.
• To inform strategies for optimizing blood inventory.

Main Methods:

• Analysis of demographic data from 158,666 blood donors in Hong Kong (2010).
• Logistic regression models used to identify characteristics of frequent donors.
• Models stratified by gender to explore interaction effects.

Main Results:

• Male donors were generally more likely to be frequent donors.
• Frequent donors were identified as older individuals with Rh D-negative blood type.
• The influence of these characteristics varied between male and female donors.

Conclusions:

• Targeting less frequent donors can increase overall donation frequency.
• Strategies should focus on recruiting non-donors and motivating existing donors.
• Addressing the needs of an aging society requires a stable and optimal blood inventory.