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Deferral from donation is usually for conditions that make the donor only temporarily unable to give. Based on questionnaires given to 1247 donors with subsequent follow-up of their donation records for 6 months, permanent psychological effects of deferral are suggested. Only one of 36 deferred first-time donors (2.8%) compared with 27.3 percent of those who were not deferred returned for a second donation during the next 6 months. Among most first-time donors, temporary deferral may be interpreted psychologically as providing a permanent excuse for not donating.
Jane Allyn Piliavin (Wed,) studied this question.