I would call it incorporation bias. It is similar to the use of a test to define the illness and then measuring the sensitivity of the test.
Dan
A priori selection bias
Prof Zbys Fedorowicz
Director
The Bahrain Branch of the UK Cochrane Centre
The Cochrane Collaboration
For information on the Bahrain branch see: http://bahrain.cochrane.org/en/index.html
From: Evidence based health (EBH) [mailto:[log in to unmask]]
On Behalf Of Brian Alper MD
Sent: Monday, March 07, 2016 2:12 PM
To: [log in to unmask]
Subject: Re: Name that bias
Sounds like Selection bias.
Brian S. Alper, MD, MSPH, FAAFP
Founder of DynaMed
Vice President of Innovations and EBM Development
www.dynamed.com, health.ebsco.com
Twitter: @BrianAlperMD
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From: Evidence based health (EBH) [mailto:[log in to unmask]]
On Behalf Of Kev Hopayian
Sent: Monday, March 07, 2016 4:39 AM
To:
[log in to unmask]
Subject: Name that bias
Hi,
I have sometimes seen cross-sectional studies where a variable (e.g. hyperglycaemia) is one of the inclusion criteria for a study of the prevalence of the same variable in a population (e.g. metabolic syndrome). Not surprisingly, the prevalence would be 100%. Does this self-fulfilling selection bias have a specific name?
Dr Kev (Kevork) Hopayian,
MD FRCGP
General Practitioner, Suffolk,
General Practice Trainer,
Hon Sen Lecturer, Norwich Medical School, University of East Anglia
Primary Care Tutor, East Suffolk
RCGP Clinical Skills Assessment examiner
NHS Senior Appraiser, East Anglia
RCGP International Adviser
Dr Kev (Kevork) Hopayian,
MD FRCGP
General Practitioner, Suffolk,
General Practice Trainer,
Hon Sen Lecturer, Norwich Medical School, University of East Anglia
Primary Care Tutor, East Suffolk
RCGP Clinical Skills Assessment examiner
NHS Senior Appraiser, East Anglia
RCGP International Adviser