The impact of blood donation deferral strategies on the eligibility of men who have sex with men and other sexual risk behavior in Australia

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BACKGROUND: In Australia, a man cannot donate blood if he has had sex with another man within the past 3 months. However, this policy has been criticized as being discriminatory as it does not consider lower risk subgroups, and led to calls for modifications to the policy that more accurately distinguish risk among gay, bisexual, and other men who have sex with men (GBM). STUDY DESIGN AND METHODS: We used data from a nationally representative survey to estimate the proportion of GBM aged 18-74 years old who would be eligible to donate under current criteria and other scenarios. RESULTS: Among the 5178 survey participants, 155 (3.0%) were classified as GBM based on survey responses, Among the GBM, 40.2% (95% CI 28.0%-53.7%) were eligible to donate based on current criteria, and 21.0% (95% CI 14.5%-29.5%) were ineligible due to the 3 months deferral alone. Eligibility among GBM, all men, and the population increased as criteria were removed. Under the new Australian plasma donation criteria, 73.6% (95% CI 64.4%-81.1%) of GBM, 68.4% (95% CI 65.5%-71.2%) of all men, and 60.8% (95% CI 58.8%-62.8%) of the full population were estimated to be eligible. Only 16.1% (95% CI 8.6%-28.1%) of GBM knew that the male-to-male sex deferral period is 3 months. DISCUSSION: Changing the deferral criteria and sexual risk evaluation would lead to a higher proportion of GBM being eligible to donate blood. Knowledge of the current GBM deferral period is very low. Improved education about the current criteria and any future changes are required to improve blood donation rates.

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