en Public Administration & Health management and economics Public Administration & Health management and economics Original Research Original Research <p><strong>Background: </strong>Long-term financial support is essential for the survival of a charitable organization. Health charities need to identify<br> the effective factors influencing donor retention.<br> <strong>Methods: </strong>In the present study, the items of a questionnaire were derived from both literature review and semi-structured interviews<br> related to donor retention. Using a purposive sampling, 300 academic and executive practitioners were selected. After the follow- up, a<br> total of 243 usable questionnaires were prepared for factor analysis. The questionnaire was validated based on the face and content<br> validity and reliability through Cronbach&rsquo;s &alpha;-coefficient.<br> <strong>Results:</strong> The results of exploratory factor analysis extracted 2 factors for retention: donor factor (variance = 33.841%; Cronbach&rsquo;s &alpha;-<br> coefficient = 90.2) and charity factor (variance = 29.038%; Cronbach&rsquo;s &alpha;-coefficient = 82.8), respectively. Subsequently, confirmatory<br> factor analysis was applied to support the overall reasonable fit.<br> <strong>Conclusions: I</strong>n this study, it was found that repeated monetary donations are supplied to the charitable organizations when both<br> aspects of donor factor (retention factor and charity factor) for retention are taken into consideration. This model could provide a perspective<br> for making sustainable donations and charitable giving.</p> Charitable Giving, Donor, Retention, Factor Analysis, Health care 71 76 http://mjiri.iums.ac.ir/browse.php?a_code=A-10-2578-1&slc_lang=en&sid=1 Sara Aghababa 200319475328460031212 200319475328460031212 No Department of Health Services Management, Science and Research Branch, Islamic Azad University, Tehran, Iran. Amir Ashkan Nasiripour 200319475328460031213 200319475328460031213 No Department of Health Services Management, Science and Research Branch, Islamic Azad University, Tehran, Iran. Mohammadreza Maleki maleki.mr@iums.ac.ir 200319475328460031214 200319475328460031214 Yes Department of Health Service Management, School of Health Management and Information Sciences, Iran University of Medical Sciences, Tehran, Iran. Mahmoodreza Gohari 200319475328460031215 200319475328460031215 No Department of Biostatistics, Iran University of Medical Sciences, Tehran, Iran.