Document Detail

Olfactory testing as an aid in the diagnosis of Parkinson's disease: development of optimal discrimination criteria.
MedLine Citation:
PMID:  7600189     Owner:  NLM     Status:  MEDLINE    
Since olfactory dysfunction is among the first signs of idiopathic Parkinson's disease (PD), olfactory testing may aid in the early of 'preclinical' diagnosis of this disorder. Indeed, the proportion of early-stage PD patients with olfactory dysfunction appears to be greater than the proportion of early-stage PD patients exhibiting some of the cardinal signs of PD. Because olfactory function varies in the general population and declines with age, empirically-based criteria are needed by the clinician to establish whether the degree of olfactory loss observed in a given patient is concordant with the presence of PD. In this study, we present cutoff criteria for the optimal assessment of olfactory dysfunction in the evaluation of PD. Specifically, we present scores for the University of Pennsylvania Smell Identification Test (UPSIT) that best discriminate between PD patients and age-matched controls. Receiver operating characteristic (ROC) curves, based upon sensitivity and specificity estimates, were computed for three age groups (< or = 60 yrs, 61-70 yrs, and > or = 71 yrs) and scores with highest sensitivity and specificity were determined. Sex- and age-related differences in the test scores were observed, with lower scores occurring for men and for the older patient groups.
R L Doty; S M Bromley; M B Stern
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Neurodegeneration : a journal for neurodegenerative disorders, neuroprotection, and neuroregeneration     Volume:  4     ISSN:  1055-8330     ISO Abbreviation:  Neurodegeneration     Publication Date:  1995 Mar 
Date Detail:
Created Date:  1995-08-10     Completed Date:  1995-08-10     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  9209022     Medline TA:  Neurodegeneration     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  93-7     Citation Subset:  IM    
Department of Otorhinolaryngology: Head and Neck Surgery, University of Pennsylvania Medical Center, Philadelphia, USA.
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MeSH Terms
Age Distribution
Case-Control Studies
Discriminant Analysis
Middle Aged
Olfactory Pathways / physiology*
Parkinson Disease / diagnosis*,  physiopathology
Predictive Value of Tests
Sensitivity and Specificity
Sex Distribution
Grant Support
P01 00161//PHS HHS; R01 08148//PHS HHS

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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