A case management occupational health model to facilitate earlier return to work of NHS staff with common mental health disorders: a feasibility study

BACKGROUND: The NHS is the biggest employer in the UK. Depression and anxiety are common reasons for sickness absence among staff. Evidence suggests that an intervention based on a case management model using a biopsychosocial approach could be cost-effective and lead to earlier return to work for staff with common mental health disorders. OBJECTIVE: The objective was to assess the feasibility and acceptability of conducting a trial of the clinical effectiveness and cost-effectiveness of an early occupational health referral and case management intervention to facilitate the return to work of NHS staff on sick leave with any common mental health disorder (e.g. depression or anxiety). DESIGN: A multicentre mixed-methods feasibility study with embedded process evaluation and economic analyses. The study comprised an updated systematic review, survey of care as usual, and development of an intervention in consultation with key stakeholders. Although this was not a randomised controlled trial, the study design comprised two arms where participants received either the intervention or care as usual. PARTICIPANTS: Participants were NHS staff on sick leave for 7 or more consecutive days but less than 90 consecutive days, with a common mental health disorder. INTERVENTION: The intervention involved early referral to occupational health combined with standardised work-focused case management. CONTROL/COMPARATOR: Participants in the control arm received care as usual. PRIMARY OUTCOME: The primary outcome was the feasibility and acceptability of the intervention, study processes (including methods of recruiting participants) and data collection tools to measure return to work, episodes of sickness absence, workability (a worker's functional ability to perform their job), occupational functioning, symptomatology and cost-effectiveness proposed for use in a main trial. RESULTS: Forty articles and two guidelines were included in an updated systematic review. A total of 49 of the 126 (39%) occupational health providers who were ...