Systematic review of involuntary hospitalisation and long-term compliance

Introduction Involuntary hospitalisation denies autonomy and freedom of decision-making and is frequent in psychiatric clinical practice. However, there is still a lack of knowledge of long-term compliance after Involuntary commitment. Methods We conducted a systematic review of published studies reporting people compliance after involuntary hospitalisation and people compliance after voluntary admission. Two investigators independently searched PubMed, PsycINFO, EMBASE and CINAHL up to December 17th, 2021 to identify eligible studies. The study is registered with PROSPERO number CRD42022299437. Results Ten independent studies analysing the main indicators of compliance, engagement with services and medication adherence, were included. Three studies show that compliance is worse in people that have been involuntary hospitalised and in the others no association is found. Just two of the ten studies show an association with improved compliance. Outcomes are assessed from the first follow-up appointment after discharge up to 96 months. Conclusions Although evidences carried out so far are weak, the data do not show a trend of improvements and do not seem to exclude the possibility of worse compliance after compulsory hospitalisation. More appropriate methodologies and reliable assessment are needed in future research to provide scientific evidence on involuntary admission health effects.