Prevalence of comorbid psychiatric illness and substance misuse in primary care in England and Wales. Frisher, M., Collins, J., Millson, D., Crome, I., & Croft, P. Journal of Epidemiology and Community Health, 58(12):1036--1041, December, 2004. doi abstract bibtex 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.
@article{frisher_prevalence_2004,
title = {Prevalence of comorbid psychiatric illness and substance misuse in primary care in {England} and {Wales}},
volume = {58},
issn = {0143-005X},
doi = {10.1136/jech.2003.017384},
abstract = {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.},
language = {eng},
number = {12},
journal = {Journal of Epidemiology and Community Health},
author = {Frisher, Martin and Collins, Juliet and Millson, David and Crome, Ilana and Croft, Peter},
month = dec,
year = {2004},
pmid = {15547069},
pmcid = {PMC1732645},
keywords = {Adolescent, Adult, Aged, Aged, 80 and over, Comorbidity, Diagnosis, Dual (Psychiatry), England, Female, Humans, Male, Mental Disorders, Middle Aged, Prevalence, Primary Health Care, Substance-Related Disorders, Wales},
pages = {1036--1041}
}
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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.","language":"eng","number":"12","journal":"Journal of Epidemiology and Community Health","author":[{"propositions":[],"lastnames":["Frisher"],"firstnames":["Martin"],"suffixes":[]},{"propositions":[],"lastnames":["Collins"],"firstnames":["Juliet"],"suffixes":[]},{"propositions":[],"lastnames":["Millson"],"firstnames":["David"],"suffixes":[]},{"propositions":[],"lastnames":["Crome"],"firstnames":["Ilana"],"suffixes":[]},{"propositions":[],"lastnames":["Croft"],"firstnames":["Peter"],"suffixes":[]}],"month":"December","year":"2004","pmid":"15547069","pmcid":"PMC1732645","keywords":"Adolescent, Adult, Aged, Aged, 80 and over, Comorbidity, Diagnosis, Dual (Psychiatry), England, Female, Humans, Male, Mental Disorders, Middle Aged, Prevalence, Primary Health Care, Substance-Related Disorders, Wales","pages":"1036--1041","bibtex":"@article{frisher_prevalence_2004,\n\ttitle = {Prevalence of comorbid psychiatric illness and substance misuse in primary care in {England} and {Wales}},\n\tvolume = {58},\n\tissn = {0143-005X},\n\tdoi = {10.1136/jech.2003.017384},\n\tabstract = {STUDY OBJECTIVE: To estimate the annual period prevalence of co-occurring psychiatric illness and substance misuse among patients in primary care.\nDESIGN: Analysis of the general practice research database.\nSETTING: England and Wales, 1993-1998.\nPARTICIPANTS: 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.\nMAIN 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.\nCONCLUSIONS: 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.},\n\tlanguage = {eng},\n\tnumber = {12},\n\tjournal = {Journal of Epidemiology and Community Health},\n\tauthor = {Frisher, Martin and Collins, Juliet and Millson, David and Crome, Ilana and Croft, Peter},\n\tmonth = dec,\n\tyear = {2004},\n\tpmid = {15547069},\n\tpmcid = {PMC1732645},\n\tkeywords = {Adolescent, Adult, Aged, Aged, 80 and over, Comorbidity, Diagnosis, Dual (Psychiatry), England, Female, Humans, Male, Mental Disorders, Middle Aged, Prevalence, Primary Health Care, Substance-Related Disorders, Wales},\n\tpages = {1036--1041}\n}\n\n","author_short":["Frisher, M.","Collins, J.","Millson, D.","Crome, I.","Croft, P."],"key":"frisher_prevalence_2004","id":"frisher_prevalence_2004","bibbaseid":"frisher-collins-millson-crome-croft-prevalenceofcomorbidpsychiatricillnessandsubstancemisuseinprimarycareinenglandandwales-2004","role":"author","urls":{},"keyword":["Adolescent","Adult","Aged","Aged","80 and over","Comorbidity","Diagnosis","Dual (Psychiatry)","England","Female","Humans","Male","Mental Disorders","Middle Aged","Prevalence","Primary Health Care","Substance-Related Disorders","Wales"],"downloads":0},"search_terms":["prevalence","comorbid","psychiatric","illness","substance","misuse","primary","care","england","wales","frisher","collins","millson","crome","croft"],"keywords":["adolescent","adult","aged","aged","80 and over","comorbidity","diagnosis","dual (psychiatry)","england","female","humans","male","mental disorders","middle aged","prevalence","primary health care","substance-related disorders","wales"],"authorIDs":[],"dataSources":["FmCWXwJibZiWNzpdc"]}