This project set out to explore the costs and consequences of variations in nurse staffing levels in acute hospital wards in NHS hospitals. We used routine hospital data from one large NHS hospital trust to see whether the ability of the nursing team to monitor patients and prevent deterioration was reduced on days of lower staffing. We also explored the cost effectiveness of different staff groups in the nursing team. We found that higher numbers of registered nurses in the workforce were linked to fewer missed opportunities to prevent deterioration and a a lower risk of death. While registered nurses appeared to be cost effective in preventing death, increases in the number of support staff was not.
The results of this study are part of an important body of work that demonstrate the likely consequences of nurse staffing shortages. They also show that there are no 'quick fixes' by employing lesser trained staff whose contribution, while important, is not able to replace registered nurses in maintaining patient safety in modern NHS hospital wards.