A neglected area of patient safety research is how the characteristics of mental health staff and teams may influence incidents, specifically, through unintended and harmful consequences of clinical care. While the research literature into patient safety has increased, there is still a need to further consider safety on mental health wards, for example, the role of the staff team in containment and conflict. This review aims to explore the question, ‘How do staff and team characteristics relate to safety incidents in adult inpatient mental health settings?’.

The review will follow Whittemore and Knafl’s integrative review framework. CINAHL, Cochrane, Embase, MEDLINE, PsycINFO, Web of Science will be searched. Literature published after 1999, that includes extractable quantitative, qualitative and mixed methods data exploring the relationship between staff and team characteristics on incidents in adult inpatient mental health settings, will be suitable for inclusion. The Mixed Methods Appraisal Tool will be used for quality appraisal and data analysis and will comprise data reduction, display and comparison.

No new data or access to participants will be involved in this review. As such, ethical review will not be required. Dissemination will include publication in peer-reviewed journals and presentations at national and international conferences.

This review has been registered on PROSPERO (ref. CRD420251119981; https://www.crd.york.ac.uk/PROSPERO/view/CRD420251119981).

A key part of the patient safety system is how it responds to and learns from safety incidents. To date, there is limited research on understanding system-based approaches to investigating incidents that occur within this complex interacting system.

The aims of this study were to qualitatively explore mental health professionals’ perceptions of patient safety incident investigations; to understand the impact of the transition to systems-based approaches and to explore the influence of different elements of the system on the goals of patient safety.

The qualitative study involved 19 semi-structured interviews with professionals working within the patient safety system across two mental health National Health Service trusts. The data were analysed using thematic analysis.

Those interviewed identified that a change in approach to incident investigation, from root cause analysis to systems-based, would lead to rigorous investigations that are effectively linked to learning. Over time, this was described as a contributory factor to reducing feelings of blame and positively influencing safety culture. There were considerations of potential negative effects from a systems-based approach, such as the shifting rather than elimination of blame, and the possibility of missing individual poor practice. The findings identify the presence of several interdependencies across the system that could have a positive or negative influence on the outcomes of incident responses.

This study demonstrates that the interdependencies within the system and our limited understanding of safety in mental healthcare introduces complexity and uncertainty to incident investigation outcomes. This is likely to impact on safety incident responses and learning, where acknowledging and evaluating this complexity is likely to reduce any potential negative outcomes that exist.