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    Nurse Fatigue Increases the Risk of Sickness Absence

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    Author
    Sagherian, Knar
    Advisor
    Geiger-Brown, Jeanne
    Date
    2017
    Type
    dissertation
    
    Metadata
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    Abstract
    Introduction: Sickness absence (SA) is problematic in occupations requiring 24/7 coverage where one person's SA cascades into more work days, longer shift durations and elevated fatigued states for remaining workers. As part of this dissertation, a systematic literature review found strong evidence that fatigue increased the risk of SA in the workforce. Few studies examined this relationship in nurses, despite reported high fatigue and differences in shiftwork characteristics. Fatigue-risk scores generated from bio-mathematical fatigue models are popular in safety-sensitive industries and may be useful for assessing and monitoring fatigue on nursing units and predicting SA. Purpose: The purpose of this study was to explore prospective associations between work-related fatigue, bio-mathematically modeled fatigue-risk and SA in 12-hour shift hospital nurses. Methods: Two studies were conducted that used retrospective cohort design of hospital nurses representing four nursing units from a major pediatric hospital. Baseline data on work-related fatigue were from Fatigue Risk, Alertness Management Effectiveness (FRAME) study (n=40) using the self-reported Occupational Fatigue Exhaustion Recovery Scale. Data on fatigue-risk scores were generated from work-rest schedules of 197 nurses working 41,538 shifts using Fatigue Audit InterDyne (FAID) and Fatigue Risk Index (FRI) software programs. Work-related fatigue and fatigue-risk scores were then linked to SA data that were extracted from the hospital's attendance system. The statistical approach was generalized linear mixed models that account for non-independency of repeated measures. Results: The SA rate in both studies was ~5%. Among FRAME participants, for every 1SD increase in acute fatigue scores, nurses were 1.29 times more likely to be absent from work (OR=1.29, 95%CI=1.02-1.63). In the bio-mathematical model study, when FAID-scores were moderate (scores=41-79, OR=1.38, 95%CI=1.21-1.58) or high (scores=81-150, OR=1.67, 95%CI=1.42-1.95), nurses were more likely to take SA than nurses with lower (<41) scores. Similarly, when FRI-scores were >60, nurses were 1.58 times (95%CI=1.05-2.37) more likely to take SA compared to nurses with lower scores. Conclusion: Work-related acute fatigue and fatigue-risk modeled bio-mathematically significantly predicted nurses' SA. While surveys are instrumental in identifying the nature and severity of fatigue, bio-mathematical fatigue models may be more practical to monitor for day-to-day fatigue changes in the workplace.
    Description
    University of Maryland, Baltimore. Nursing. Ph.D. 2017
    Keyword
    bio-mathematical fatigue models
    sickness absence
    Absenteeism (Labor)
    Fatigue
    Nursing Staff, Hospital
    Workload
    Identifier to cite or link to this item
    http://hdl.handle.net/10713/6748
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    Theses and Dissertations School of Nursing
    Theses and Dissertations All Schools

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