عوامل موثر بر اهدای خون مستمر در اهداکنندگان استان اصفهان مبتنی بر نظریه رفتار برنامه‌ریزی شده

Abstractbackground and objectivesthe aim of this study was to determine the effective factors on regular blood donation in donors in isfahan province based on the theory of planned behavior in 2009.materials and methodsthis is a descriptive-analytical study performed on 600 blood donors in blood centers scattered across isfahan province. the sampling method was stratified random proportional to the size of the cities. subjects were randomly selected from each center. data were then collected by a validated and reliable questionnaire based on the theory of planned behavior. finally, we used spss software v18 for data analysis in which t-test, fisher test, correlation tests, and mann-whitney applied. resultsout of the total number of subjects, 77 (12.8%) returned after 6 months for blood donation and 523 (87.2%) did not. most of the donors were 21-30 years old. the mean of age in regular donors was significantly higher than that of non-regular blood donors. regular blood donation has the strongest correlation with intention and self efficacy (r= 0.577, p < 0.001) followed by self identify (r= 0.481), subjective norms (r= 0.353), and attitude (r= 0.355).conclusions self efficacy is one of the effective factors on one’s intention to return for donation. so, by improving this construct we can help recruitment and retention of blood donors in the community.