A 10% increase in nurse engagement accounted for a 2.6% decrease to the proportion of senior doctors leaving the NHS for good.
Firefighters logged the highest number of steps per week on average, with over 80,000 steps per worker.
Nurses were asked to assess their mental health alongside the quality of care their organisation provided.
Researchers at King's College London analysed anonymised data from more than 160,000 clinical e-records of patients from South London.
Healthcare professionals working more closely with the patients of sick children could lead to better outcomes.
The majority said they felt abandoned by leadership, either within their NHS services or by the government.