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Looking at Level Three: Critical Incidents, Fatigue and Mood

Looking at Level Three: Critical Incidents, Fatigue and Mood. Patrick Sherry, Ph.D. University of Denver. Fatigue Risk Management System Model. Fatigue Scores are Indicators Only. Fatigue scores are indicators only of the impact of sleep deprivation.

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Looking at Level Three: Critical Incidents, Fatigue and Mood

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  1. Looking at Level Three: Critical Incidents, Fatigue and Mood Patrick Sherry, Ph.D. University of Denver

  2. Fatigue Risk Management System Model

  3. Fatigue Scores are Indicators Only • Fatigue scores are indicators only of the impact of sleep deprivation. • They are based on a statistical analysis of research performed into fatigue levels over a broad sample of population and provide guidance on the fatigue of an individual.

  4. Level #3: Assessment of Symptoms Related to Fatigue

  5. Symptom Checklists Self-report Behavioral Scales Physiological Monitoring Sleep Disorder Screening Behavioral Symptoms 3

  6. Symptom Checklists Self-report Behavioral Scales Physiological Monitoring Sleep Disorder Screening Behavioral Symptoms 3 Focus on Behavioral Symptoms Associated with Fatigue • Sleepiness (Epworth) • Sleep Problems (Pittsburgh) • Weight • Performance • Mood/Depression (Beck)

  7. Symptom Checklists Self-report Behavioral Scales Physiological Monitoring Sleep Disorder Screening Behavioral Symptoms 3 Focus on Behavioral Symptoms Associated with Fatigue Depression Individual Differences Sleepiness Biological Capability & Adaptive Resources Job Demands Lapses Life Events Errors Work Schedule Accidents Diathesis Stress Model Vulnerability Genetic Predisposition Sherry (2009)

  8. Behavioral Consequences Resulting of Fatigue in Workplace Diathesis Stress Model Depression Individual Differences Sleepiness Biological Capability & Adaptive Resources Job Demands Lapses Critical Incidents Errors Work Schedule Accidents Vulnerability Genetic Predisposition Sherry (2009)

  9. Studies Done in Several Locations • Kansas City • San Antonio • Seattle • Los Angeles • Roseville • Denver • Salt Lake City

  10. Method is always to invite all employees arriving on duty to complete a survey packet • Packet includes a number of measures including: • Epworth • Pittsburgh • Beck • PCL-C

  11. Demographics • Marital Status: • Married 65.9% • Divorced 7.1% • Single 27.1% • Gender • Male 97.3% • Race • White 80.4% • Hispanic 9.9% • African Am 4.4%

  12. Involved in a Traumatic Event

  13. N=622

  14. N=659

  15. Relationships Between Critical Incidents Mood and Fatigue

  16. Critical Incidents and Trouble Sleeping OR = 1.28

  17. Traumatic Events & Trouble Sleeping OR =1.5, Chi Square = .08

  18. Trauma & Sleepiness OR = 1.02, Chi Sq = ns

  19. Grade Crossing Events & Sleepiness OR= 1.7, Chi Square = .05

  20. The Issue… Depression Fatigue Traumatic Events

  21. Issues of causality • Fatigue and depression are related • Need for additional research • Follow-up with structured clinical interviews • Health education & screening

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