Document Detail


Prevalence of comorbid psychiatric illness and substance misuse in primary care in England and Wales.
MedLine Citation:
PMID:  15547069     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
STUDY OBJECTIVE: To estimate the annual period prevalence of co-occurring psychiatric illness and substance misuse among patients in primary care. DESIGN: Analysis of the general practice research database. SETTING: England and Wales, 1993-1998. PARTICIPANTS: Registered patients at 230 general practices representing 3.1% of the population. A comorbid case was defined as one with both a psychiatric diagnosis and substance misuse diagnosis (not including alcohol or tobacco) within a calendar year. A potentially chronic comorbid case was one that met this definition and, in addition, was treated in subsequent years for either a psychiatric condition or substance misuse. MAIN RESULTS: The annual period prevalence of comorbidity increased from 50/100 000 patient years of exposure (PYE) to 80/100 000 PYE, an increase of 62% during the study period. Rates of comorbid psychoses, comorbid schizophrenia, and comorbid paranoia increased by 147%, 128%, and 144%. The average age of comorbid cases decreased from 38 years to 34 years. Over 80% of comorbid cases were newly diagnosed in each study year, although many are treated in subsequent years for either psychiatric illness or substance misuse. CONCLUSIONS: This study provides data on the nature and extent of comorbidity in primary care in England and Wales. As the comorbidity rate is increasing by about 10% each year, and as comorbid cases are becoming younger, it is probable that the comorbidity rate will have increased beyond the study end point.
Authors:
Martin Frisher; Juliet Collins; David Millson; Ilana Crome; Peter Croft
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Publication Detail:
Type:  Journal Article; Multicenter Study; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of epidemiology and community health     Volume:  58     ISSN:  0143-005X     ISO Abbreviation:  J Epidemiol Community Health     Publication Date:  2004 Dec 
Date Detail:
Created Date:  2004-11-19     Completed Date:  2005-03-08     Revised Date:  2009-11-18    
Medline Journal Info:
Nlm Unique ID:  7909766     Medline TA:  J Epidemiol Community Health     Country:  England    
Other Details:
Languages:  eng     Pagination:  1036-41     Citation Subset:  IM    
Affiliation:
Department of Medicines Management, Keele University, Staffordshire ST5 5BG, UK. m.frisher@keele.ac.uk
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
Aged
Aged, 80 and over
Comorbidity
Diagnosis, Dual (Psychiatry)
England / epidemiology
Female
Humans
Male
Mental Disorders / epidemiology*
Middle Aged
Prevalence
Primary Health Care / statistics & numerical data
Substance-Related Disorders / epidemiology*
Wales / epidemiology
Comments/Corrections

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


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