Does donating blood for the first time during a national emergency create a better commitment to donating again?

Area of Science:

• Public Health
• Hematology
• Emergency Response

Background:

• National emergencies, such as the September 11th attacks, often inspire public altruism, leading to increased blood donations.
• This surge includes a significant number of first-time donors (FTD).

Purpose of the Study:

• To compare the return rates of first-time blood donors (FTD) after the September 11, 2001, attacks with those from a comparable period in 2000.
• To identify factors influencing donor return among FTD.

Main Methods:

• Retrospective analysis of 3315 allogeneic whole blood donations from FTD between September 11-30, 2001.
• Comparison of return rates within six months post-donation to a control group of 1279 FTD from September 2000.
• Analysis of deferral rates and donor demographics.

Main Results:

• The return rate for FTD after September 11, 2001, was 32.8%, statistically similar to the control group's 33.4%.
• The deferral rate was significantly lower in the post-9/11 group (P < 0.01).
• Older donors and female donors showed a higher likelihood of returning.

Conclusions:

• While the September 11, 2001, attacks motivated first-time blood donations, it did not increase the proportion of repeat donors.
• Demographic factors like age and sex influenced donor retention.
• Targeted strategies are necessary to improve the retention of eligible first-time blood donors.