Reasons for nonadherence and response to treatment in an adherence intervention trial for relapsing-remitting multiple sclerosis patients.

Objectives: To explore whether patients in an adherence trial who appeared not to take disease modifying therapy (DMT) for avoidance reasons could be reliably identified, by observational coding, for their main reason of not taking DMT. To determine whether reason groups could be distinguished by clinical and self-report psychological characteristics and intervention outcomes.

Method: Participants were multiple sclerosis patients (N = 78, 88.