Health economic impact of moderate-to-severe chronic pain associated with osteoarthritis in England: a retrospective analysis of linked primary and secondary care data

Objective Despite the prevalence of osteoarthritis (OA) in England, few studies have examined the health economic impact of chronic pain associated with OA. The aim of this study was to compare outcomes in patients with moderate-to-severe chronic pain associated with OA and matched controls without...

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Main Authors: David Walsh, Roger Knaggs, Christoph Lohan, Robert Wood, Alastair J Dickson, Theo Tritton, Greg Coates, Peter Clewes, Hannah Stevenson
Format: Article
Language:English
Published: BMJ Publishing Group 2023-07-01
Series:BMJ Open
Online Access:https://bmjopen.bmj.com/content/13/7/e067545.full
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author David Walsh
Roger Knaggs
Christoph Lohan
Robert Wood
Alastair J Dickson
Theo Tritton
Greg Coates
Peter Clewes
Hannah Stevenson
author_facet David Walsh
Roger Knaggs
Christoph Lohan
Robert Wood
Alastair J Dickson
Theo Tritton
Greg Coates
Peter Clewes
Hannah Stevenson
author_sort David Walsh
collection DOAJ
description Objective Despite the prevalence of osteoarthritis (OA) in England, few studies have examined the health economic impact of chronic pain associated with OA. The aim of this study was to compare outcomes in patients with moderate-to-severe chronic pain associated with OA and matched controls without known OA.Design Retrospective, longitudinal, observational cohort study.Setting Electronic records extracted from the Clinical Practice Research Datalink GOLD primary care database linked to Hospital Episode Statistics (HES) data set.Participants Patients (cases; n=5931) ≥18 years and with existing diagnosis of OA and moderate-to-severe pain associated with their OA, and controls matched on age, sex, comorbidity burden, general practitioner (GP) practice and availability of HES data.Interventions None.Primary and secondary outcome measures Total healthcare resource use (HCRU) and direct healthcare costs during 0–6, 0–12, 0–24 and 0–36 months of follow-up. Secondary outcomes measures included pharmacological management and time to total joint replacement.Results Patients with moderate-to-severe chronic pain associated with OA used significantly more healthcare services versus matched controls, reflected by higher HCRU and significantly higher direct costs. During the first 12 months’ follow-up, cases had significantly more GP consultations, outpatient attendances, emergency department visits and inpatient stays than matched controls (all p<0.0001). Total mean costs incurred by cases during 0–12 months’ follow-up were five times higher in cases versus controls (mean (SD): £4199 (£3966) vs £781 (£2073), respectively). Extensive cycling through pharmacological therapies was observed; among cases, 2040 (34.4%), 1340 (22.6%), 841 (14.2%), 459 (7.7%) and 706 (11.9%) received 1–5, 6–10, 11–15, 16–20 and >20 lines of therapy, respectively.Conclusions This wide-ranging, longitudinal, observational study of real-world primary and secondary care data demonstrates the impact of moderate-to-severe chronic pain associated with OA in patients compared with matched controls. Further studies are required to fully quantify the health economic burden of moderate-to-severe pain associated with OA.
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spelling doaj.art-a4328bcf2718434fb9f159de3c8f30fe2023-08-10T23:00:06ZengBMJ Publishing GroupBMJ Open2044-60552023-07-0113710.1136/bmjopen-2022-067545Health economic impact of moderate-to-severe chronic pain associated with osteoarthritis in England: a retrospective analysis of linked primary and secondary care dataDavid Walsh0Roger Knaggs1Christoph Lohan2Robert Wood3Alastair J Dickson4Theo Tritton5Greg Coates6Peter Clewes7Hannah Stevenson8Pain Centre Versus Arthritis and NIHR Nottingham Biomedical Research Centre, School of Medicine, University of Nottingham, Nottingham, UKClinical Pharmacy Practice, School of Pharmacy, University of Nottingham, Nottingham, UKPfizer Australia Pty Ltd, Sydney, New South Wales, AustraliaAdelphi Real World, Bollington, UKPrimary Care Rheumatology & Musculoskeletal Medicine Society, York, UKAdelphi Real World, Bollington, UKPfizer Ltd, Tadworth, UKPfizer Ltd, Tadworth, UKPfizer Ltd, Tadworth, UKObjective Despite the prevalence of osteoarthritis (OA) in England, few studies have examined the health economic impact of chronic pain associated with OA. The aim of this study was to compare outcomes in patients with moderate-to-severe chronic pain associated with OA and matched controls without known OA.Design Retrospective, longitudinal, observational cohort study.Setting Electronic records extracted from the Clinical Practice Research Datalink GOLD primary care database linked to Hospital Episode Statistics (HES) data set.Participants Patients (cases; n=5931) ≥18 years and with existing diagnosis of OA and moderate-to-severe pain associated with their OA, and controls matched on age, sex, comorbidity burden, general practitioner (GP) practice and availability of HES data.Interventions None.Primary and secondary outcome measures Total healthcare resource use (HCRU) and direct healthcare costs during 0–6, 0–12, 0–24 and 0–36 months of follow-up. Secondary outcomes measures included pharmacological management and time to total joint replacement.Results Patients with moderate-to-severe chronic pain associated with OA used significantly more healthcare services versus matched controls, reflected by higher HCRU and significantly higher direct costs. During the first 12 months’ follow-up, cases had significantly more GP consultations, outpatient attendances, emergency department visits and inpatient stays than matched controls (all p<0.0001). Total mean costs incurred by cases during 0–12 months’ follow-up were five times higher in cases versus controls (mean (SD): £4199 (£3966) vs £781 (£2073), respectively). Extensive cycling through pharmacological therapies was observed; among cases, 2040 (34.4%), 1340 (22.6%), 841 (14.2%), 459 (7.7%) and 706 (11.9%) received 1–5, 6–10, 11–15, 16–20 and >20 lines of therapy, respectively.Conclusions This wide-ranging, longitudinal, observational study of real-world primary and secondary care data demonstrates the impact of moderate-to-severe chronic pain associated with OA in patients compared with matched controls. Further studies are required to fully quantify the health economic burden of moderate-to-severe pain associated with OA.https://bmjopen.bmj.com/content/13/7/e067545.full
spellingShingle David Walsh
Roger Knaggs
Christoph Lohan
Robert Wood
Alastair J Dickson
Theo Tritton
Greg Coates
Peter Clewes
Hannah Stevenson
Health economic impact of moderate-to-severe chronic pain associated with osteoarthritis in England: a retrospective analysis of linked primary and secondary care data
BMJ Open
title Health economic impact of moderate-to-severe chronic pain associated with osteoarthritis in England: a retrospective analysis of linked primary and secondary care data
title_full Health economic impact of moderate-to-severe chronic pain associated with osteoarthritis in England: a retrospective analysis of linked primary and secondary care data
title_fullStr Health economic impact of moderate-to-severe chronic pain associated with osteoarthritis in England: a retrospective analysis of linked primary and secondary care data
title_full_unstemmed Health economic impact of moderate-to-severe chronic pain associated with osteoarthritis in England: a retrospective analysis of linked primary and secondary care data
title_short Health economic impact of moderate-to-severe chronic pain associated with osteoarthritis in England: a retrospective analysis of linked primary and secondary care data
title_sort health economic impact of moderate to severe chronic pain associated with osteoarthritis in england a retrospective analysis of linked primary and secondary care data
url https://bmjopen.bmj.com/content/13/7/e067545.full
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