Functional Ovarian Reserve in Sickle Cell Disease

This is a non-therapeutic cross-sectional two-year pilot study within an eight-year longitudinal study. After the parent and/or patient has given permission to enroll on the research study, review of the electronic medical record and SCCRIP (NCT02098863) data base will be performed to obtain data on current medical therapy, number of vaso-occlusive events and types of events as well as ED or hospital visits, laboratory studies and use of sickle cell disease modifying therapies. A questionnaire will be distributed annually from time of enrollment until age 19.0 years to participants with SCD and consenting legal guardian (if applicable). For healthy controls, the same questionnaire will be provided to coincide with their one-time research visit. Pubertal status will be collected from questionnaires (prepubertal/no breast tissue, pubertal (breast tissue, but no menses), post-menarcheal. For those menstruating, regularity of menses will be ascertained through questionnaire answers and also date of last menstrual period. Questions for participants will also include questions regarding all forms of hormonal contraception and current opiate-containing medications. For subjects with SCD, blood will be collected at the time of a clinic visit and occur concurrently with an already scheduled lab draw for clinical care with a goal frequency of annually. For controls, blood will be collected at a one-time study visit.