These sentinel studies led to significant policy changes. 4 Higher levels of education for nurses, especially BSN preparation, correlated with decreased mortality and failure to rescue, and higher RN skill mix was associated with decreased pneumonia and decreased mortality. 3 And when staffing targets weren't met, mortality increased. 1, 2 Likewise, lower HPPD correlated with longer length of stay. For instance, the number of nurses available to care for patients, measured by full-time equivalents and hours per patient day (HPPD), was found to be inversely correlated with patient mortality and failure to rescue.
Over the past 2 decades, a significant body of research has substantiated the link between nurse staffing factors and patient outcomes.
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