Background And Objectives: In July 2019, Australia removed the upper age limit for returning donors (previously 80 years) and increased the upper age for new donors from 70 to 75 years. This study assessed the safety of our new policy for our newly eligible upper age donors (NEUADs).
Materials And Methods: For the period, 14 July 2019 to 30 June 2023, the relative risk (RR) of individual adverse events in NEUADs was compared with younger cohorts.
Results: There were 4529 NEUADs who made 8000 donations. The overall rates of vasovagal reactions (VVRs) were significantly lower in the NEUAD cohort. However, compared with younger donors; returning NEUADs had a significantly higher rate of loss of consciousness (RR 2.62; 95% confidence interval [CI]: 1.41-4.86) and new NEUADs had a significantly higher rate of offsite VVRs (RR 1.60; 95% CI: 1.08-2.37). Both new and returning NEUADs had significantly higher rates of VVR requiring outside medical care (RR 2.48; 95% CI: 1.28-4.79 and RR 4.45; 95% CI: 2.00-9.91 respectively).
Conclusion: Our findings support historical findings that overall VVR rates decline with age but suggest a higher risk of more serious VVRs.
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