Changes in the daily life experience of patients with obsessive-compulsive disorder following mindfulness-based cognitive therapy: Looking beyond symptom reduction using ecological momentary assessment.

•MBCT participation did not result in significant changes of daily life experienced positive and negative affect, distress associated with OC symptoms, or acceptance of momentary emotions.•Results indicate decreased insight into the unreasonableness of OC symptoms in the MBCT group at post-treatment. However, momentary OC symptoms at post-treatment predicted higher insight in the MBCT group.•The finding concerning changes of insight post MBCT warrants further investigation.•Future research should explore if longer and/or more intense guidance is needed for this patient group.