'We're all in the same boat': An Interpretative Phenomenological Analysis study of experiences of being an 'expert' during patient and public involvement within Child and Adolescent Mental Health Services (CAMHS).

Background: Patient and Public involvement (PPI) has rapidly evolved into a key component in shaping the delivery of health services. However, little is known about what it is like to participate in involvement procedures that include representatives of multiple groups and in the context of developing new interventions for Child and Adolescent Mental Health Services (CAMHS).

Objective: This study explored participants' experiences of PPI, following attending a 'consensus conference', during which their views were sought in relation to the development of a proposed staff-based intervention and key questions about its design and implementation.