human factors - singapore healthcare management · 2013-09-30 · affordance: a quality or feature...
TRANSCRIPT
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Dr. Yin Shanqing
Human Factors Specialist
HUMAN FACTORS BACKGROUND, FOREGROUND, & FORESEEABLE FUTURE
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Today’s Menu
BACKGROUND what Human Factors is about
FOREGROUND how Human Factors expertise is being used within healthcare today
FORESEEABLE FUTURE why Human Factors will play a big role in the future of healthcare
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Institute of Aviation, U. of Illinois
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Pilot Training
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Aviation Human Factors
Pilot performance under adverse conditions
Human error
Air accident investigation
Mental workload
Situational awareness
Crew resource management
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History Dating Back to World War 2
Aviation: talented individuals in million-dollar machines
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Source: Air Crash Investigation Series
Tenerife Airport Disaster
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KLM Celebrity
“Regardless of how well-qualified, experienced … (or) exact profession …”
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Don’t Forget to Check Out
HM4 - Doctor in the Cockpit: Diffusion of Industrial Quality & Safety Innovations in Hospitals
2.30pm
Dr Dirk De Korne
Deputy Director
Health Innovation, Academic Clinical Program Singapore National Eye Centre
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What is Human Factors?
Science of improving human performance and reducing human error
(simple definition)
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A Weak Link
If you possess any of these components, you can cause errors
MEMORY
PERCEPTION
MOTOR
SKILLS
INFORMATION
PROCESSING
LIMITED
STRENGTH
PERSONALITY
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Applying Psychology Theories
Perception: visual search, attention, lighting in environments, communication Memory & Cognition: decision-making biases, training, procedure design Social (Cultural) Psychology: crew resource management, authority Personality Psychology: personnel selection Stress & Workload: multi-tasking, fatigue management
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Multi-Disciplinary Field
PSYCHOLOGY
DESIGN ENGINEERING
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Ordinary Humans in Extraordinary Environments
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HOW OMNIPRESENT IS HUMAN FACTORS?
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Same Design, Opposite Instructions
Designs and affordances can encourage us to make mistakes
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Distractions While Driving
Do you use the phone or the GPS while driving?
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Pushing the Limit
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Going Beyond The Limit?
Technology appeals to us where we are most vulnerable
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HOW VULNERABLE ARE WE? To answer this question, we must first understand ourselves.
Are you ready?
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T T T T T T
Can You Find The Odd One Out?
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Increased difficulty in detection = Increased risk of error
I
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How About Now?
Automatically drawing our attention
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Parallel Search
Effective, regardless of how many distractors present
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The Boss Stage
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• Items in entire array are processed “in parallel”
• “pop-out” effect; boomz
• Color, contrast, size,
motion etc.
• Time it takes to detect target in 5 search items is the same for 50 search items
Boomz! Something that shouts “me”!
Parallel Processing
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Road Signs
(not so good)
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“serial processing”
need to focus attention on each item before deciding and identifying target
more search items = longer search time
suffers from speed-accuracy tradeoff
Serial Search
SERIAL SEARCH TASKS EFFORTFUL PAY ATTENTION
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Look for “L”
Similarity of Target and Distractors
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T T
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Same Same but Different
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Where’s Wally?
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Packing The Right Drug
Serial search and inspection all day long
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Heparin Vials
Designed to err
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Death by Decimal Points
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Medical Error in the USA
“Never” Events:
•Wrongful surgery
•Surgical site infections
•Blood incompatibility
•Falls in the hospital
•Administering wrong meds
•Retained foreign object
… etc
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Source: NHS Institute for Innovation & Improvement
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HOW CAN HUMAN FACTORS HELP?
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Human Factors Activities in Healthcare
Quality Improvement & Solution Planning
applying HF concepts and findings based on evidence-based research
User Research
facilitating user experience insights through task analyses and other HF methods
Subject Matter Consultant
for research and innovation, investigations, as well as education and training programs
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RESEARCH & INNOVATION provide new insights on complex issues, and
generate creative solutions which are evidence-based
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There are many ways for patient information to be communicated.
Various features found in different methods can encourage or afford certain behaviors which are beneficial during handovers.
Characteristics of an Ideal Handover Method
Main Investigators: Dr Kewin Siah (NUH) & Ms Jessie Yang (NTU)
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Affordance: a quality or feature that allows specific behavior or action
Affordances Support from Medical Literature
Interactivity Able to engage in dynamic, two-way discussions (Q&A, seek clarification, interrupt the speaker etc.)
Positive support from WHO guidelines and quasi-experiments (Joint commission, 2006; Obstfelder and Moen, 2006; Horwitz et al., 2009)
Reviewability Extent to which communicated information can be reviewed during and after the handover process
Positive support from experiments (Bhabra et al.2007 ; Pothier et al., 2005)
Shared Workspace Able for both to simultaneously access e-case notes (but not necessarily able to see each other)
Positive support from field observation (Anderson and Mangino, 2006)
Visibility Able to see each other (but not necessarily share a workspace)
Positive support from expert opinion (Solet et al., 2005), Opposite opinions from communication theories
(Cloud)
HOW WILL EACH CHARACTERISTIC AFFECT HANDOVERS ?
Four Characteristics of Handovers
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Receiver in Transit
Cellphone Handover
Discussion & Pre-Notes
Audio Recording
Face-to-Face Handover
Remote Data Access
Discussion with
no note-taking
Discussion with
note-taking
Discussion with
prepared notes
by outgoing Dr.
Voicemail with
note-taking
In a meeting
room with note-
taking
(no case notes)
Simultaneous
discussion, note-
taking, and case
notes review
Interactivity
Visibility
Shared Space
Interactivity
Visibility
Shared Space
Interactivity
Visibility
Shared Space
Interactivity
Visibility
Shared Space
Interactivity
Visibility
Shared Space
Interactivity
Visibility
Shared Space
Low Review Medium Review High Review Medium Review Medium Review Medium Review
Six Possible Handover Methods
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“on-shift doctor” was surveyed regarding each unique case that was handover over via each unique method:
Memory Recall of case details and specifics
Case Comprehension of what needs to be done
Subjective Evaluation of the quality of the handover
THE HIGHER THE SCORE, THE MORE POSITIVE THE EFFECTS
Measuring the Effects of Each Characteristic
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Handover Study: Summary of Results
Interactivity
When on-shift doctors were allowed to query and clarify during discussions, they demonstrated higher memory recall and case comprehension.
Reviewability
Providing handover notes significantly improved on-shift doctors’ memory recall and subjective evaluation scores.
Shared Workspace
When handover teams were able to simultaneously interact with patient case notes, on-shift doctors had better memory recall of case details.
Visibility
There were no evidence suggesting that face-to-face handover is better than cell phone handover
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HQI2F’11 Funded Research Project
Explore the viability of a patient safety proactive reporting system
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Patient Safety Site Visits / Proactive Notification
Utilizing the benefits of HFACS in proactive hazard identification and assessment
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Single-page Form using SBAR Format
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Data Analysis using HFACS & Risk Assessment
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ON-SITE SOLUTION-PLANNING working closely on the ground to review existing processes,
identify gaps, and propose solutions
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CGH Outpatient Pharmacy
Attached as pharmacy packer for two weeks
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Good information, inconsistent layout Top down, left to right
Location code increases from right to left; Some not in chronological order; Inconsistent information location.
Location code increases from left to right; Details on drug package, packing instructions
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First thing packer sees on the label; mental impression created potential capture error
Important information located middle-to-last
Label hinders packing by location
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A&E Out-patient Department
“The patient’s allergy information isn’t very prominent in the system.”
“The existing documentation system occasionally causes unnecessary confusion between different patients.”
Review system and processes for safety gaps and possible solutions
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AEPSS and Citrix side-by-side
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AEPSS and Citrix side-by-side
Patient ID information is clear, prominent, and salient
Patient ID information is at edge of screen, small, not
easily readable
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AEPSS and Citrix side-by-side
Tendency to associate patient profile in Citrix with active AEPSS case notes
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Similar layout as Citrix
(includes Allergies)
Pattern Recognition, Information Saliency
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USER RESEARCH designing out systemic problems
by first understanding the operational requirements
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The Need to Understand the User
How are important user requirements captured and conveyed?
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Video: Bad User Experience
Usability
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Human Factors Informed Procurement for Technological Solutions
The Practice of User Research
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Why Conduct User Research
Attain user buy-in for proposed design and solution implementation
Increased employee productivity due to optimized tool / environment
Risk mitigating strategies identified early (versus reactive responses)
Save time and resources later on
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Human Factors Methods
Cognitive Task Analysis
Heuristic Evaluation
GOMS (Goals, Operations, Methods, & Selection Rules)
Usability / User Experience Testing
Naturalistic Observations
Quantitative Research etc.
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I would like an OT that features … it should have enough space for … reuse some of
the existing equipment like …
Sure, we’ll come up with
a proposal and seek your approval
Verbal (mis)Communication
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“Please imagine what it looks like and see if it’s ok”
It started with good intentions
A Wonderful Plan?
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“Let me help you visualize!”
“But you still need to use your imagination to go through the processes and tell me if this is what you want.”
3D Modeling?
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wood
hollow plastic
existing equipment
Perks of Prototyping
Visualize physically
Simulate actual processes
Examine 3D layout and
dynamic movements
Understand user needs
and intentions
Facilitate interactive
discussions and
demonstrations
Potential immediate
resolution of problems
Communication via Prototyping
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Pre-development Modifications
• Modifying the plans ($)
• Finding a mock-up space ($)
• Building low-fidelity features ($$)
• Work on a blank slate
Post-development Modifications
• Removing paid work ($$$$$)
• Additional vendor labor ($$$)
• Additional disruptions to operation to be scheduled ($$)
• Work with infrastructural constraints; “first-aid”
$ = resources and time
Cost of fixing an error after development is 100x
that of fixing an error before development
ROI of Proper User Research
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Redesigning the Biometry Room
Patients undergo a sequence of tests, some of whom are wheel-chair users
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mock-up to scale
HF Specialist observes for users’ cognitive needs and process challenges
proposed curtain tracks in lieu of walls
actual wheelchair
standby to make changes
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simulate work processes and patient journey
check for sufficient clearance
immediate documentation of
final layout
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check for sufficient clearance
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THE INTEGRATED BUILDING Patient-centered care
in a home-like environment
(2014)
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EDUCATION & OUTREACH creating the awareness of patient safety issues
equipping the organization with the knowledge of human factors
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“Ten Minutes of Human Factors”
Building culture and awareness Ten minutes at a time
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Feedback on 10-Minutes-of-Human-Factors
The presentations supported planning and enabled setting of realistic policies;
enabled supervisors and managers to make better judgment and implement more effective corrective actions when they need to work with staff to resolve non-compliance issues;
and provided a good education for self-awareness to avoid booby traps, both in the professional and personal lives.
Dr. Lee Chien Earn CEO, Changi General Hospital
“
”
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WHAT’S NEXT IN MEDICAL HUMAN FACTORS?
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Humans Going Forward
Man once dreamt to touch the moon, can now do so through technology
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Future Healthcare Workers?
Able to achieve more through technology integration
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Dreamers and Innovators
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Hybrid Assistive Limb by Prof. Yoshiyuki Sankai (University of Tsukuba)
YouTube
HAL Exoskeleton
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Machines Are Getting Smarter
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Empowered by Technology
… is the brain I never had
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Keratome LASIK Surgery
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Technology changes the nature of the errors
New Challenges
User interface
Automation trust and reliability
Troubleshooting skill sets
Lack of practice
“Black Swans”
Man-Machine Systems
IntraLASIK
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Imperfect Automation
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To Be Continued …
ERM 5 : Interface of Care – Human vs. Technology in Integrated Healthcare Delivery
Enterprise Risk Management Congress 2013 21st August, 4pm
Prof Albert Boquet,
Associate Professor
Human Factors & Systems Embry-Riddle Aeronautical University
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What Can Human Factors Do For You Today?
Human Factors Research / Solution Planning
evidence-based insights and solutions, healthcare innovation
Subject Matter Consultations
investigations, education & training
Human-Systems Integration
user research, identifying systemic issues, interfacing with new technology,
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HUMAN CAPABILITIES AND LIMITATIONS
Understand the User
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EFFECTIVE HUMAN-SYSTEMS INTEGRATION
Support the User
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