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Epidemiology, 2021
Supplemental Digital Content is available in the text. Background: International classification of disease (ICD) codes used to study sarcoidosis has previously been validated in only 1 study.
S. Ceder +5 more
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Supplemental Digital Content is available in the text. Background: International classification of disease (ICD) codes used to study sarcoidosis has previously been validated in only 1 study.
S. Ceder +5 more
semanticscholar +1 more source
BMJ, 2009
A 50 year old man presents with a sore throat. You suspect streptococcal pharyngitis and request a rapid streptococcal antigen test. The sensitivity of this test is 80% and the specificity is 95%. The prevalence of streptococcal pharyngitis in adults with pharyngitis is 10%. What is the likelihood that the patient has streptococcal pharyngitis if the
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A 50 year old man presents with a sore throat. You suspect streptococcal pharyngitis and request a rapid streptococcal antigen test. The sensitivity of this test is 80% and the specificity is 95%. The prevalence of streptococcal pharyngitis in adults with pharyngitis is 10%. What is the likelihood that the patient has streptococcal pharyngitis if the
openaire +2 more sources
The Positive Predictive Value of Smartphone Photoscreening in Pediatric Practices.
Journal of pediatric ophthalmology and strabismus, 2018PURPOSE To compare smartphone photoscreening with other commercial objective screeners for amblyopia screening for young children. METHODS Ten pediatricians in four practices employed Nokia 1020 smartphones (Espoo, Finland) with single-axis Gobiquity ...
R. Arnold +4 more
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Repeat Retinomax screening changes positive predictive value
Journal of American Association for Pediatric Ophthalmology and Strabismus, 2014To quantify changes in autorefraction measurement with repeated readings using the Retinomax autorefractor and to investigate the clinical implications of the results.Children referred from a preschool vision screening program for a failed autorefraction screening test received repeat autorefraction as well as a comprehensive eye examination with ...
Eugene A, Lowry +4 more
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The First Positive: Computing Positive Predictive Value at the Extremes
Annals of Internal Medicine, 2000Computing the positive predictive value (PPV) of a wellknown test for a relatively common disease is a straight-forward exercise. However, in the case of a new test for a rare disorder; the extreme numbers involved-the very low prevalence of the disorder and the lack of previous false-positive results--make it difficult to compute the PPV.
J E, Smith, R L, Winkler, D G, Fryback
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