Limitations
Both trials recruited a convenience sample with substantially more specialist service users than participants who had not used specialist services. All sociodemographic characteristics were self-rated; characteristics that could be described in state records (such as mental health service use and educational attainment) were not verified against these records. More limited information on service use was collected for the NEON-O Trial than for the NEON Trial. Participants not identifying as male or female were excluded for hypothesis testing owing to the small numbers. Although grouping ethnicity responses into 2 categories (White British and Other ethnicity) was necessary because of small numbers in most ethnicity categories other than White British, we acknowledge that this could be perceived as a reductive approach to working with ethnicity data. Some missing EQ-5D data were caused by a mismatch on the constructs of sex and gender between the requirements of an external library and the design of a demographic item. Although statistically significant relationships have been found between service use history and baseline participant characteristics, the absence of longitudinal data means that no conclusions can be drawn on causality. Although information on some protected characteristics has been collected through the demographics form, the inclusion of a broader range of demographic items drawn from the UK Equality Act [