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Cited by 607Statistical Methods in EpidemiologyMeta-analysis and systematic reviewsMental Health Treatment and Access

The DOI matches its Crossref record; 28 of the 28 references it cites were found in a registry or an index.

The Clinician's Illusion

Cohen, Patricia·1984·Archives of General Psychiatry
DOI 10.1001/archpsyc.1984.01790230064010
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Abstract

There are several diseases, including schizophrenia, alcoholism, and opiate addiction, for which the long-term prognosis is subject to disagreement between clinicians and researchers and also among researchers. Part of this disagreement may be attributable to a difference in the populations they sample. The clinician samples the population currently suffering from the disease (a "prevalence" or census sample), while research samples tend to more nearly represent the population ever contracting the disease (an "incidence" sample). The clinician's sample is biased toward cases of long duration, since the probability that a case will appear in a prevalence sample is proportional to its duration, hence "the clinician's illusion." The statistical mechanism of this bias is illustrated and its consequences detailed. Other sources of sampling bias in clinical and research samples are briefly described and partial remedies are suggested.

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Metadata

Authors
Cohen, P.
Affiliations
New York State Psychiatric Institute (US)
Corresponding author
Cohen, Patricia
Venue
Archives of General Psychiatry
Publisher
American Medical Association (AMA)
Published
1984-12-01
Volume
41
Issue
12
Pages
1178
ISSN
0003-990X (ISSN-L)
DOI
10.1001/archpsyc.1984.01790230064010
OpenAlex
W1978848619
Cited by
607
References
28
Citations by year
2026: 6 · 2025: 7 · 2024: 11 · 2023: 10 · 2022: 17 · 2021: 8 · 2020: 30 · 2019: 41 · 2018: 14 · 2017: 23 · 2016: 15 · 2015: 26 · 2014: 35 · 2013: 19 · 2012: 22
FWCI
4.98
Type
journal article
Language
en
Open access
closed
Locations
  • Archives of General Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Mathematics › Statistics and Probability › Statistical Methods in Epidemiology
  • Social Sciences › Decision Sciences › Statistics, Probability and Uncertainty › Meta-analysis and systematic reviews
  • Health Sciences › Medicine › Psychiatry and Mental health › Mental Health Treatment and Access
Keywords
sampling bias, disease duration, long-term prognosis, schizophrenia, alcoholism, opioid use disorder, sample selection bias
MeSH terms
Alcoholism, Attitude of Health Personnel, Mental Disorders, Cross-Sectional Studies, Epidemiologic Methods, Humans, Probability, Prognosis, Psychiatry, Research, Sampling Studies, Schizophrenia, Substance-Related Disorders

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