The incidence of eating disorders in the UK in 2000–2009: findings from the General Practice Research Database

Objectives Few studies have investigated the incidence of eating disorders (EDs). Important questions about changes in the incidence of diagnosed disorders in recent years, disorder and gender-specific onset and case detection remain unanswered. Understanding changes in incidence is important for pu...

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Main Authors: Irene Petersen, Nadia Micali, Janet L Treasure, Katrina W Hagberg
Format: Article
Language:English
Published: BMJ Publishing Group 2013-05-01
Series:BMJ Open
Online Access:https://bmjopen.bmj.com/content/3/5/e002646.full
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author Irene Petersen
Nadia Micali
Janet L Treasure
Katrina W Hagberg
author_facet Irene Petersen
Nadia Micali
Janet L Treasure
Katrina W Hagberg
author_sort Irene Petersen
collection DOAJ
description Objectives Few studies have investigated the incidence of eating disorders (EDs). Important questions about changes in the incidence of diagnosed disorders in recent years, disorder and gender-specific onset and case detection remain unanswered. Understanding changes in incidence is important for public health, clinical practice and service provision. The aim of this study was to estimate the annual (age-specific, gender-specific and subtype-specific) incidence of diagnosed ED: anorexia nervosa (AN), bulimia nervosa (BN) and eating disorder not otherwise specified (EDNOS) in primary care over a 10-year period in the UK (2000–2009); to examine the changes within the study period; and to describe peak age at diagnosis.Design Register-based study.Setting Primary care. Data were obtained from a primary care register, the General Practice Research Database, which contains anonymised records representing about 5% of the UK population.Participants All patients with a first-time diagnosis of AN, BN and EDNOS were identified.Primary outcome Annual crude and age-standardised incidence rates were calculated.Results A total of 9072 patients with a first-time diagnosis of an ED were identified. The age-standardised annual incidence rate of all diagnosed ED for ages 10–49 increased from 32.3 (95% CI 31.7 to 32.9) to 37.2 (95% CI 36.6 to 37.9) per 100 000 between 2000 and 2009. The incidence of AN and BN was stable; however, the incidence of EDNOS increased. The incidence of the diagnosed ED was highest for girls aged 15–19 and for boys aged 10–14.Conclusions The age-standardised incidence of ED increased in primary care between 2000 and 2009. New diagnoses of EDNOS increased, and EDNOS is the most common ED in primary care.
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spelling doaj-art-b0135d31fdc84694801cb8202f8016322025-02-11T22:05:15ZengBMJ Publishing GroupBMJ Open2044-60552013-05-013510.1136/bmjopen-2013-002646The incidence of eating disorders in the UK in 2000–2009: findings from the General Practice Research DatabaseIrene Petersen0Nadia Micali1Janet L Treasure2Katrina W Hagberg3Department of Primary Care and Population Health, University College London, London, UKUCL GOS Institute of Child Health, London, UKEating Disorders Research Unit, Department of Psychological Medicine, King`s College London, Institute of Psychiatry, London, UKBoston Collaborative Drug Surveillance Program, Boston University School of Public Health, Lexington, Massachusetts, USAObjectives Few studies have investigated the incidence of eating disorders (EDs). Important questions about changes in the incidence of diagnosed disorders in recent years, disorder and gender-specific onset and case detection remain unanswered. Understanding changes in incidence is important for public health, clinical practice and service provision. The aim of this study was to estimate the annual (age-specific, gender-specific and subtype-specific) incidence of diagnosed ED: anorexia nervosa (AN), bulimia nervosa (BN) and eating disorder not otherwise specified (EDNOS) in primary care over a 10-year period in the UK (2000–2009); to examine the changes within the study period; and to describe peak age at diagnosis.Design Register-based study.Setting Primary care. Data were obtained from a primary care register, the General Practice Research Database, which contains anonymised records representing about 5% of the UK population.Participants All patients with a first-time diagnosis of AN, BN and EDNOS were identified.Primary outcome Annual crude and age-standardised incidence rates were calculated.Results A total of 9072 patients with a first-time diagnosis of an ED were identified. The age-standardised annual incidence rate of all diagnosed ED for ages 10–49 increased from 32.3 (95% CI 31.7 to 32.9) to 37.2 (95% CI 36.6 to 37.9) per 100 000 between 2000 and 2009. The incidence of AN and BN was stable; however, the incidence of EDNOS increased. The incidence of the diagnosed ED was highest for girls aged 15–19 and for boys aged 10–14.Conclusions The age-standardised incidence of ED increased in primary care between 2000 and 2009. New diagnoses of EDNOS increased, and EDNOS is the most common ED in primary care.https://bmjopen.bmj.com/content/3/5/e002646.full
spellingShingle Irene Petersen
Nadia Micali
Janet L Treasure
Katrina W Hagberg
The incidence of eating disorders in the UK in 2000–2009: findings from the General Practice Research Database
BMJ Open
title The incidence of eating disorders in the UK in 2000–2009: findings from the General Practice Research Database
title_full The incidence of eating disorders in the UK in 2000–2009: findings from the General Practice Research Database
title_fullStr The incidence of eating disorders in the UK in 2000–2009: findings from the General Practice Research Database
title_full_unstemmed The incidence of eating disorders in the UK in 2000–2009: findings from the General Practice Research Database
title_short The incidence of eating disorders in the UK in 2000–2009: findings from the General Practice Research Database
title_sort incidence of eating disorders in the uk in 2000 2009 findings from the general practice research database
url https://bmjopen.bmj.com/content/3/5/e002646.full
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