“…Reflecting the wide range of focus and variation in study populations across the included studies, they also differed in who were invited as public collaborators. In seven studies, individuals with experience of living with mental illness, or service user experience within mental health were the public collaborators ( Baker & Procter, 2014 ; Birken & Bryant, 2017, 2019; Bryant et al, 2016 ; Hancock et al, 2015 ; Makdisi et al, 2013 ; Williamson & Ennals, 2020 ). Other public collaborators included older adults ( Andonian & MacRae, 2011 ), residents in prison ( Crabtree, Ohm, et al, 2016 ), or persons living with chronic conditions ( Nielsen et al, 2019 ; Restall et al, 2017 ).…”