[Effect of nurse staffing on patient outcomes: a review of the literature].

Staff shortages present nurses with ever increasing levels of stress and working hours. This has resulted in a corresponding increase in talent flight away from the nursing profession. Responding to financial constraints imposed by the Bureau of National Health Insurance (NHI), Taiwan hospitals have reduced nursing staff numbers and recruited nurses at lower levels of competencies and experience. However, few studies have explored the impact of nurse staffing on patient outcomes in Taiwan. Accordingly, we review relevant literature on nurse classifications, the current status of Taiwan nursing manpower, Taiwan and other national regulations on nursing staffing, and the impact of nursing staffing on patient outcomes in an effort to facilitate future study. Our literature review demonstrated that insufficient nursing staffing relates significantly to rates of nosocomial infections, patient mortality, patient falls, pressure ulcers, and rates of patient and family satisfaction. Insufficient nurse staffing leads to increases in adverse patient events, prolonged average hospital stay lengths, and total healthcare expenditures. Evidence shows that nurse staffing is closely linked to patient outcomes.