Patient safety culture improvements depend on basic healthcare education: a longitudinal simulation-based intervention study at two Danish hospitals

BACKGROUND: A growing body of evidence supports the existence of an association between patient safety culture (PSC) and patient outcomes. PSC refers to shared perceptions and attitudes towards norms, policies and procedures related to patient safety. Existing literature shows that PSC varies among health professionals depending on their specific profession and specialty. However, these studies did not investigate whether PSC can be improved. This study investigates whether length of education is associated with improvements in PCS following a simulation intervention. METHODS: From April 2017 to November 2018, a cross-sectional intervention study was conducted at two regional hospitals in Denmark. Two groups with altogether 1230 health professionals were invited to participate. One group included nurses, midwives and radiographers; the other group included doctors. A train-the-trainer intervention approach was applied consisting of a 4-day simulation instructor course that emphasised team training, communication and leadership. Fifty-three healthcare professionals were trained as instructors. After the course, instructors performed in situ simulation in their own hospital environment. OUTCOMES: The Safety Attitude Questionnaire (SAQ), which has 6 dimensions and 32 items, was used to collect main outcome variables. All employees from both groups were surveyed before the intervention and again four and nine months after the intervention. RESULTS: Mean baseline scores were higher among doctors than among nurses, midwives and radiographers for all SAQ dimensions. At the second follow-up, four of six dimensions improved significantly (p ≤ 0.05) among nurses, midwives and radiographers, whereas no dimensions improved significantly among doctors. CONCLUSION: Over time, nurses, midwives and radiographers improved more in PSC attitudes than doctors did.