Fig. 1From: In search of potential predictors of erythropoiesis-stimulating agents (ESAs) hyporesponsiveness: a population-based studyFlow-chart of study population. * no treatment within 6 months prior to Index Date (ID, i.e. date of ESA treatment start). ESA = erythropoiesis-stimulating agents; Hb = hemoglobin; CKD = chronic kidney diseaseBack to article page