OBJECTIVE: The aims of the study were to (1) estimate the relative nurse effectiveness, or individual nurse value-added (NVA), to patients' clinical condition change during hospitalization; (2) examine nurse characteristics contributing to NVA; and (3) estimate the contribution of value-added nursing care to patient outcomes. DATA SOURCES/STUDY SETTING: Electronic data on 1,203 staff nurses matched with 7,318 adult medical-surgical patients discharged between July 1, 2011 and December 31, 2011 from an urban Magnet-designated, 854-bed teaching hospital. STUDY DESIGN: Retrospective observational longitudinal analysis using a covariate-adjustment value-added model with nurse fixed effects. DATA COLLECTION/EXTRACTION METHODS: Data were extracted from the study hospital's electronic patient records and human resources databases. PRINCIPAL FINDINGS: Nurse effects were jointly significant and explained 7.9 percent of variance in patient clinical condition change during hospitalization. NVA was positively associated with having a baccalaureate degree or higher (0.55, p = .04) and expertise level (0.66, p = .03). NVA contributed to patient outcomes of shorter length of stay and lower costs. CONCLUSIONS: Nurses differ in their value-added to patient outcomes. The ability to measure individual nurse relative value-added opens the possibility for development of performance metrics, performance-based rankings, and merit-based salary schemes to improve patient outcomes and reduce costs.
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Yakusheva et al. (2014) studied this question.
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