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The relationship between nurse staffing and patient outcomes: A case study

Shuldham, Caroline, Parkin, Claire, Firouzi, Ashi, Roughton, Michael and Lau-Walker, Margaret (2009) The relationship between nurse staffing and patient outcomes: A case study International Journal of Nursing Studies, 46 (7). pp. 986-992.

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Background Research has shown a direct relationship between staffing levels and patient outcomes for specific nurse-sensitive indicators, with lower patient to nurse ratios (i.e. less patients per nurse) associated with better outcomes. Objectives To explore the relationship between nurse staffing characteristics (the nursing hours worked by permanent and temporary staff and nurse hours per patient day) and patient outcomes: pressure sores, patient falls, upper gastrointestinal bleed, pneumonia, sepsis, shock and deep vein thrombosis. Design A case study using retrospective hospital data, at ward level. Setting A tertiary cardio-respiratory NHS Trust in England, comprising two hospitals. Participants All patients, including day cases, who were admitted to either hospital as an in-patient over 12 months. Methods Data were extracted from corporate hospital systems. The clinical areas were categorised as lower dependency, i.e. wards, or critical care which included ICU and high dependency units. The relationship between nurse staffing characteristics and patient outcomes was assessed using either a Poisson or negative binomial regression model as appropriate. We sought to establish whether the outcomes were affected by the nurse hours per patient day, the permanent nurse hours worked as a percentage of the total hours, and the permanent nurse hours worked as a percentage of the permanent and bank hours combined. Results In the lower dependency category wards there was only a weak association demonstrated between nurse staffing and the majority of the outcomes. The results from the high dependency critical care areas showed few significant results with only the rate of sepsis being significantly reduced as the ratio of permanent staff hours increased. Conclusions The study demonstrated the possibility of using existing hospital data to examine the relationship between nurse staffing and patient outcomes, however the associations found were weak and did not replicate reliably the findings from previous work.

Item Type: Article
Divisions : Faculty of Health and Medical Sciences > School of Health Sciences
Authors :
Shuldham, Caroline
Parkin, Claire
Firouzi, Ashi
Roughton, Michael
Date : July 2009
DOI : 10.1016/j.ijnurstu.2008.06.004
Copyright Disclaimer : © 2008 Elsevier Ltd. All rights reserved.
Uncontrolled Keywords : Nurse staffing; Patient outcomes; Quality of care
Depositing User : Clive Harris
Date Deposited : 18 Jul 2017 08:16
Last Modified : 16 Jan 2019 18:54

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