Treatment adherence and transitioning youth in pediatric multiple sclerosis.

•Recognize that pediatric MS patients transitioning into adult care are a vulnerable group of patients.•Non-adherence was reported in 37% of patients versus 30% of parents of teenagers with MS.•Patients reported the most common cause for non-adherence as forgetting to take their medication (reported in 50% of patients versus 33% of parents).•Young patients with higher disability and worse cognitive functioning may be the ones with more difficulty transitioning to adult care.•Some discrepancies occur between parent and patient reports of non-adherence and other self-management skills.