Participants who meet the following inclusion criteria and none of the exclusion criteria are eligible for enrollment in the cohort study.
Inclusion Criteria
1. Any age
2. Having any congenital or acquired non-neoplastic hematologic disorder; or
3. Having a bleeding phenotype as indicated by an age adjusted abnormal ISTH Bleeding Assessment Tool score with an unknown diagnosis; or
4. Connective tissue disorder with bleeding tendency as indicated by an age adjusted abnormal ISTH Bleeding Assessment Tool score.
5. Less than 50 exposure days to factor and/or factor-like products
Exclusion Criteria
1. Does not qualify for inclusion in a cohort
2. Unable to give informed consent or assent
3. Unwilling to perform study procedures
4. At least 50 exposure days to factor and/or factor-like products
This study will involve collecting medical information from the medical records, quarterly telephone calls, and bleed and treatment records of participants. Study procedures include:
Elliot Smith
Email: elliot.smith@cchmc.org
Phone Number: 513-636-7198