Assessing patient safety culture in 15 intensive care units: a mixed-methods study

Within hospitals, intensive care units (ICUs) are particularly high-risk areas for medical errors and adverse events that could occur due to the complexity of care and the patients' fragile medical conditions. Assessing patient safety culture (PSC) is essential to have a broad view on patient safety issues, to orientate future improvement actions and optimize quality of care and patient safety outcomes. This study aimed at assessing PSC in 15 Tunisian ICUs using mixed methods approach.

A cross-sectional mixed methods approach using a sequential explanatory design was conducted from December 2019 to January 2020. The first quantitative stage was conducted in 15 ICUs belonging to the two university hospitals in the region of Sousse (Tunisia). All the 344 healthcare professionals (clinical staff) working for more than 1 month in these ICUs were contacted in order to take part in the study. In the second qualitative stage 12 participants were interviewed based on purposive sampling.

All of the PSC dimensions had a score of less than 50%. The developed dimension was 'teamwork within units' (48.8%). The less developed dimensions were 'frequency of event reporting' (20.8%), 'communication openness' (22.2%) and 'non-punitive response to error' (19.7%). Interviews' thematic analysis revealed four main themes including "Hospital management/system failure", "Teamwork and communication", "Error management" and "Working conditions".

This research revealed that PSC is still in need of improvement and provided a clearer picture of the patient safety issues that require specific attention. Improving PSC through the use of quality management and error reporting systems may help to improve patient safety outcomes.