A retrospective observational analysis of post-pandemic influenza-related outcomes in the United Kingdom, 2010–2014

This study set out to evaluate influenza- and respiratory-related illnesses recorded during primary care physician consultations in England following the H1N1 pandemic in 2009 and to enable the development of a dynamic disease model. Data were obtained from the Clinical Practice Research Datalink of...

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Main Authors: Sankarasubramanian Rajaram, Witold Wiecek, Richard Lawson, Betina Blak, Yanli Zhao, Judith Hackett, Robert Brody, Tehseen Salimi, Billy Amzal, Vishal Patel
Format: Article
Language:English
Published: Taylor & Francis Group 2018-02-01
Series:Human Vaccines & Immunotherapeutics
Subjects:
Online Access:http://dx.doi.org/10.1080/21645515.2017.1403696
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author Sankarasubramanian Rajaram
Witold Wiecek
Richard Lawson
Betina Blak
Yanli Zhao
Judith Hackett
Robert Brody
Tehseen Salimi
Billy Amzal
Vishal Patel
author_facet Sankarasubramanian Rajaram
Witold Wiecek
Richard Lawson
Betina Blak
Yanli Zhao
Judith Hackett
Robert Brody
Tehseen Salimi
Billy Amzal
Vishal Patel
author_sort Sankarasubramanian Rajaram
collection DOAJ
description This study set out to evaluate influenza- and respiratory-related illnesses recorded during primary care physician consultations in England following the H1N1 pandemic in 2009 and to enable the development of a dynamic disease model. Data were obtained from the Clinical Practice Research Datalink of primary care records over four influenza seasons (2010–2014). The primary outcome of the study was incidence of influenza- and respiratory-related diagnoses, calculated per practice and by season and age group. Upper respiratory tract infection diagnoses were most frequently recorded (mean seasonal practice level incidence; 3,762 consultations per 100,000 [SD = 1,989]), and influenza-related diagnoses were least frequently recorded across all seasons, except one. Incidence rates for the under 18 population were higher than those for the general population, in particular for upper respiratory tract infection (range of 8,024–9,950 versus 3,228–4,120, respectively) and otitis media diagnoses (2,668–3,652 versus 782–1,057, respectively). For influenza-related diagnoses, the 65+ age group, the 0 to <2 and 2 to <4 groups had a higher risk (risk ratio = 1.33, 1.12 and 1.16, respectively) than other age groups. This study provides valuable insight into the incidence of influenza- and respiratory-related diagnoses in the primary care setting in England, and suggests a higher burden of disease in young children and the elderly. The study also indicates that some influenza illness is likely to be reported under respiratory-related diagnoses, given the low incidence of influenza-related diagnoses in the study.
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spelling doaj.art-bda761cf287b4baebee8d1c5dcb401e42023-09-22T08:17:53ZengTaylor & Francis GroupHuman Vaccines & Immunotherapeutics2164-55152164-554X2018-02-0114236837710.1080/21645515.2017.14036961403696A retrospective observational analysis of post-pandemic influenza-related outcomes in the United Kingdom, 2010–2014Sankarasubramanian Rajaram0Witold Wiecek1Richard Lawson2Betina Blak3Yanli Zhao4Judith Hackett5Robert Brody6Tehseen Salimi7Billy Amzal8Vishal Patel9Formerly of AstraZenecaLASER AnalyticaAstraZenecaAstraZenecaMedImmuneAstraZenecaAstraZenecaAstraZenecaLASER AnalyticaFormerly of LASER AnalyticaThis study set out to evaluate influenza- and respiratory-related illnesses recorded during primary care physician consultations in England following the H1N1 pandemic in 2009 and to enable the development of a dynamic disease model. Data were obtained from the Clinical Practice Research Datalink of primary care records over four influenza seasons (2010–2014). The primary outcome of the study was incidence of influenza- and respiratory-related diagnoses, calculated per practice and by season and age group. Upper respiratory tract infection diagnoses were most frequently recorded (mean seasonal practice level incidence; 3,762 consultations per 100,000 [SD = 1,989]), and influenza-related diagnoses were least frequently recorded across all seasons, except one. Incidence rates for the under 18 population were higher than those for the general population, in particular for upper respiratory tract infection (range of 8,024–9,950 versus 3,228–4,120, respectively) and otitis media diagnoses (2,668–3,652 versus 782–1,057, respectively). For influenza-related diagnoses, the 65+ age group, the 0 to <2 and 2 to <4 groups had a higher risk (risk ratio = 1.33, 1.12 and 1.16, respectively) than other age groups. This study provides valuable insight into the incidence of influenza- and respiratory-related diagnoses in the primary care setting in England, and suggests a higher burden of disease in young children and the elderly. The study also indicates that some influenza illness is likely to be reported under respiratory-related diagnoses, given the low incidence of influenza-related diagnoses in the study.http://dx.doi.org/10.1080/21645515.2017.1403696influenzarespiratory diseaseunited kingdomvaccinationcprd
spellingShingle Sankarasubramanian Rajaram
Witold Wiecek
Richard Lawson
Betina Blak
Yanli Zhao
Judith Hackett
Robert Brody
Tehseen Salimi
Billy Amzal
Vishal Patel
A retrospective observational analysis of post-pandemic influenza-related outcomes in the United Kingdom, 2010–2014
Human Vaccines & Immunotherapeutics
influenza
respiratory disease
united kingdom
vaccination
cprd
title A retrospective observational analysis of post-pandemic influenza-related outcomes in the United Kingdom, 2010–2014
title_full A retrospective observational analysis of post-pandemic influenza-related outcomes in the United Kingdom, 2010–2014
title_fullStr A retrospective observational analysis of post-pandemic influenza-related outcomes in the United Kingdom, 2010–2014
title_full_unstemmed A retrospective observational analysis of post-pandemic influenza-related outcomes in the United Kingdom, 2010–2014
title_short A retrospective observational analysis of post-pandemic influenza-related outcomes in the United Kingdom, 2010–2014
title_sort retrospective observational analysis of post pandemic influenza related outcomes in the united kingdom 2010 2014
topic influenza
respiratory disease
united kingdom
vaccination
cprd
url http://dx.doi.org/10.1080/21645515.2017.1403696
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