Eligibility criteria
Age 5–17.5 years
Enrolled in the CARRA Registry with a diagnosis of SLE
Receiving hydroxychloroquine for ≥3 months
Access to internet
No predefined exclusion criteria
*Recruitment limited to states in which subinvestigators held medical licences.
†Full inclusion criteria available at ClinicalTrials.gov.
CARRA, Childhood Arthritis and Rheumatology Research Alliance.