Factors influencing decision-making capacity assessments in involuntary care and treatment in Norway: A qualitative exploration of multi-stakeholder perspectives

BACKGROUND: Decision-making capacity (DMC) is a widely used criterion in health laws to balance respect for patient autonomy with protection from the potential consequences of treatment decisions. In 2017, lacking DMC was introduced as an additional criterion for involuntary care and treatment following comprehensive amendments to the Norwegian Mental Health Care Act. Despite the amendments aiming to reduce involuntary care and treatment rates, national health registry data indicate continued rising rates along the pre-2017 trajectory after an initial reduction in 2017. While previous studies suggesting varying DMC assessment quality, little is known about the potential factors influencing these variations. AIMS: To identify factors influencing DMC assessments after introducing a capacity-based mental health law governing involuntary care and treatment. METHODS: 60 purposively sampled stakeholders, including patients, families, health professionals, and lawyers, participated in semi-structured interviews and focus groups in 2018, with 26 of these participating in follow-up interviews in 2022-23. The transcribed interviews were analysed using thematic analysis. RESULTS: Data analysis generated four themes: 1) available resources' influence on DMC assessments; 2) health professionals' values and practices regarding involuntary care; 3) legal interpretations by supervisory bodies regarding involuntary care; and 4) political signals from the health authorities regarding involuntary care. CONCLUSION: DMC assessments appear to be influenced by several factors, including resource availability, health professionals' values and practices, legal interpretations by supervisory bodies, and political signals from health authorities. Combined with a lack of systematic training and validated tools, these factors may have raised the threshold for accessing mental healthcare beyond what systematic DMC assessments would suggest, contributing to increased illness severity among patients and rising involuntary care rates post-2017. Further research is needed to better understand the complex dynamics involved in DMC assessments and how to effectively implement capacity-based health laws.