P1488: ASSOCIATION BETWEEN HEMOGLOBIN LEVELS AND END-ORGAN DAMAGE IN SICKLE CELL DISEASE: A RETROSPECTIVE LINKED PRIMARY AND SECONDARY CARE DATABASE ANALYSIS IN ENGLAND - P. Telfer; S. Carvalho; J. Ruzangi; M. Arici; M. Binns; A. Beaubrun; C. Rice; J. J. Were (HemaSphere, 2022)