| アブストラクト | INTRODUCTION: To investigate if beta-adrenoreceptor blocking drug (beta-blocker) prescription reduces the risk of knee or hip osteoarthritis, total joint replacement and analgesic prescription. SETTING: Primary care. METHODS AND ANALYSIS: This is a cohort study using data from the Clinical Practice Research Datalink. Two separate analyses will be performed. Study 1 will be on the association between beta-blocker prescription and incident knee/hip osteoarthritis. Inclusion criteria will be age >/=40 years. Exposed participants will be those with >/=2 continuous beta-blocker prescriptions, and the index date will be the date of the first prescription of beta-blocker. Unexposed participants will include up to four controls matched for age, sex, general practice surgery and propensity score for beta-blocker prescription. Exclusion criteria will include contraindications to beta-blockers, consultations for osteoarthritis or potent analgesic prescription before the index date. Outcomes will be knee osteoarthritis (primary outcome), hip osteoarthritis, knee pain and hip pain. Study 2 will be on the association between beta-blocker prescription and total joint replacement and analgesic prescription in people with osteoarthritis. Inclusion criteria will be age >/=40 years, knee or hip osteoarthritis, and index date will be as in study 1. Unexposed participants will be as in study 1, additionally matched for consultation for knee or hip osteoarthritis prior to the index date. Exclusion criteria will include contraindications to beta-blockers and osteoarthritis in other joints prior to the index date. Outcomes will be total knee replacement (primary outcome), total hip replacement and new analgesic prescription. STATISTICAL ANALYSIS: Kaplan-Meier curves will be plotted, and Cox proportional HRs and 95% CIs will be calculated. Stratified analysis will be performed by class of beta-blocker, intrinsic sympathomimetic effect and indication(s) for prescription. ETHICS AND DISSEMINATION: This study was ethically approved by the Independent Scientific Advisory Committee of the Medicines and Healthcare Authority (Ref 18_227R). The results of this study will be published in peer-reviewed journals and presented at conferences. SUMMARY: This prospective cohort study will evaluate the analgesic potential of commonly used drugs for osteoarthritis pain. |
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| ジャーナル名 | BMJ open |
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| 投稿日 | 2019/8/4 |
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| 投稿者 | Nakafero, Georgina; Grainge, Matthew; Valdes, Ana; Townsend, Nick; Mallen, Christian; Zhang, Weiya; Doherty, Michael; Mamas, Mamas A; Abhishek, Abhishek |
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| 組織名 | Academic Rheumatology, University of Nottingham, Nottingham, UK.;Division of Epidemiology and Public Health, University of Nottingham, Nottingham,;UK.;Nottingham NIHR BRC, University of Nottingham, Nottingham, UK.;University of Bath, Bath, UK.;Arthritis Research UK Primary Care Centre, Keele University, Keele, UK.;Research Institute for Primary Care and Health Sciences, Keele University,;Newcastle, UK.;Academic Rheumatology, University of Nottingham, Nottingham, UK;Abhishek.abhishek@nottingham.ac.uk. |
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| Pubmed リンク | https://www.ncbi.nlm.nih.gov/pubmed/31375622/ |
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