Abstract
BackgroundUsing maps and spatial analysis are technologies to evaluate the magnitude and spatial distribution of disease in epidemiology investigations. We aimed to conduct a Bayesian spatial analysis on epidemiologic data of transfusion-dependent β-thalassemia (TDT) patients. MethodsIn this cross-sectional study, data of all TDT patients diagnosed during 1955–2018 in all counties of Fars Province were obtained from data registry of the Organization of Special Diseases of Shiraz University of Medical Sciences in Shiraz, Fars Province, Iran. Besag, York, and Mollie's (BYM) model was used for mapping. ResultsThe estimated relative risk ranged from 0.23 to 1.66 for TDT patients. The highest and lowest relative risks of TDT were observed in Larestan located in Southern and Abadeh in Northern Fars Province respectively. ConclusionsDetermining the accurate geographical distribution of a chronic disease such as β-thalassemia can be an essential prerequisite in allocation of regional health system resources.
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