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Maximizing Engagement in Mobile Health Studies: Lessons Learned and Future Directions.

Druce KL, Dixon WG, McBeth J.

Rheum Dis Clin North Am. 2019 May;45(2):159-172. doi: 10.1016/j.rdc.2019.01.004. Epub 2019 Mar 8. Review.


2018 EULAR recommendations for a core data set to support observational research and clinical care in giant cell arteritis.

Ehlers L, Askling J, Bijlsma HW, Cid MC, Cutolo M, Dasgupta B, Dejaco C, Dixon WG, Feltelius N, Finckh A, Gilbert K, Mackie SL, Mahr A, Matteson EL, Neill L, Salvarani C, Schmidt WA, Strangfeld A, van Vollenhoven RF, Buttgereit F.

Ann Rheum Dis. 2019 Mar 21. pii: annrheumdis-2018-214755. doi: 10.1136/annrheumdis-2018-214755. [Epub ahead of print]


How do glucocorticoids used in rheumatic disease affect body weight? A narrative review of the evidence.

Morgan C, Costello RE, Ray DW, Dixon WG.

Arthritis Care Res (Hoboken). 2019 Mar 15. doi: 10.1002/acr.23879. [Epub ahead of print]


Frequent discussion of insomnia and weight gain with glucocorticoid therapy: An analysis of Twitter posts.

Patel R, Belousov M, Jani M, Dasgupta N, Winokur C, Nenadic G, Dixon WG.

NPJ Digit Med. 2018 Feb 12;1. doi: 10.1038/s41746-017-0007-z.


Collecting Symptoms and Sensor Data With Consumer Smartwatches (the Knee OsteoArthritis, Linking Activity and Pain Study): Protocol for a Longitudinal, Observational Feasibility Study.

Beukenhorst AL, Parkes MJ, Cook L, Barnard R, van der Veer SN, Little MA, Howells K, Sanders C, Sergeant JC, O'Neill TW, McBeth J, Dixon WG.

JMIR Res Protoc. 2019 Jan 23;8(1):e10238. doi: 10.2196/10238.


The reporting of studies conducted using observational routinely collected health data statement for pharmacoepidemiology (RECORD-PE).

Langan SM, Schmidt SA, Wing K, Ehrenstein V, Nicholls SG, Filion KB, Klungel O, Petersen I, Sorensen HT, Dixon WG, Guttmann A, Harron K, Hemkens LG, Moher D, Schneeweiss S, Smeeth L, Sturkenboom M, von Elm E, Wang SV, Benchimol EI.

BMJ. 2018 Nov 14;363:k3532. doi: 10.1136/bmj.k3532. No abstract available.


Low salivary cortisol levels in patients with rheumatoid arthritis exposed to oral glucocorticoids: a cross-sectional study set within UK electronic health records.

Joseph RM, Ray DW, Keevil B, van Staa TP, Dixon WG.

RMD Open. 2018 Oct 1;4(2):e000700. doi: 10.1136/rmdopen-2018-000700. eCollection 2018.


Exposure measurement error when assessing current glucocorticoid use using UK primary care electronic prescription data.

Joseph RM, van Staa TP, Lunt M, Abrahamowicz M, Dixon WG.

Pharmacoepidemiol Drug Saf. 2019 Feb;28(2):179-186. doi: 10.1002/pds.4649. Epub 2018 Sep 28.


The limitations of using simple definitions of glucocorticoid exposure to predict fracture risk: A cohort study.

Robinson DE, van Staa TP, Dennison EM, Cooper C, Dixon WG.

Bone. 2018 Dec;117:83-90. doi: 10.1016/j.bone.2018.09.004. Epub 2018 Sep 13.


Ability to Predict New-Onset Psychological Distress Using Routinely Collected Health Data: A Population-Based Cohort Study of Women Diagnosed With Breast Cancer.

Syrowatka A, Hanley JA, Weir DL, Dixon WG, Meguerditchian AN, Tamblyn R.

J Natl Compr Canc Netw. 2018 Sep;16(9):1065-1073. doi: 10.6004/jnccn.2018.7038.


Representativeness of a digitally engaged population and a patient organisation population with rheumatoid arthritis and their willingness to participate in research: a cross-sectional study.

Costello R, Jacklin C, Jameson Evans M, McBeth J, Dixon WG.

RMD Open. 2018 Jun 20;4(1):e000664. doi: 10.1136/rmdopen-2018-000664. eCollection 2018.


Consumer Smartwatches for Collecting Self-Report and Sensor Data: App Design and Engagement.

Beukenhorst AL, Sergeant JC, Little MA, McBeth J, Dixon WG.

Stud Health Technol Inform. 2018;247:291-295.


Assumptions made when preparing drug exposure data for analysis have an impact on results: An unreported step in pharmacoepidemiology studies.

Pye SR, Sheppard T, Joseph RM, Lunt M, Girard N, Haas JS, Bates DW, Buckeridge DL, van Staa TP, Tamblyn R, Dixon WG.

Pharmacoepidemiol Drug Saf. 2018 Jul;27(7):781-788. doi: 10.1002/pds.4440. Epub 2018 Apr 17.


Quality of life, sleep and rheumatoid arthritis (QUASAR): a protocol for a prospective UK mHealth study to investigate the relationship between sleep and quality of life in adults with rheumatoid arthritis.

Druce KL, Cordingley L, Short V, Moore S, Hellman B, James B, Lunt M, Kyle SD, Dixon WG, McBeth J.

BMJ Open. 2018 Jan 26;8(1):e018752. doi: 10.1136/bmjopen-2017-018752.


Using technology to support clinical care and research in rheumatoid arthritis.

Dixon WG, Michaud K.

Curr Opin Rheumatol. 2018 May;30(3):276-281. doi: 10.1097/BOR.0000000000000485. Review.


Drug safety and immunogenicity of tumour necrosis factor inhibitors: the story so far.

Jani M, Dixon WG, Chinoy H.

Rheumatology (Oxford). 2018 Nov 1;57(11):1896-1907. doi: 10.1093/rheumatology/kex434. Review.


2017 EULAR recommendations for a core data set to support observational research and clinical care in rheumatoid arthritis.

Radner H, Chatzidionysiou K, Nikiphorou E, Gossec L, Hyrich KL, Zabalan C, van Eijk-Hustings Y, Williamson PR, Balanescu A, Burmester GR, Carmona L, Dougados M, Finckh A, Haugeberg G, Hetland ML, Oliver S, Porter D, Raza K, Ryan P, Santos MJ, van der Helm-van Mil A, van Riel P, von Krause G, Zavada J, Dixon WG, Askling J.

Ann Rheum Dis. 2018 Apr;77(4):476-479. doi: 10.1136/annrheumdis-2017-212256. Epub 2018 Jan 4.


Using Smartphones for Research Outside Clinical Settings: How Operating Systems, App Developers, and Users Determine Geolocation Data Quality in mHealth Studies.

Beukenhorst AL, Schultz DM, McBeth J, Lakshminarayana R, Sergeant JC, Dixon WG.

Stud Health Technol Inform. 2017;245:10-14.


Opioids are not just an American problem.

Jani M, Dixon WG.

BMJ. 2017 Dec 6;359:j5514. doi: 10.1136/bmj.j5514. No abstract available.


Recruitment and Ongoing Engagement in a UK Smartphone Study Examining the Association Between Weather and Pain: Cohort Study.

Druce KL, McBeth J, van der Veer SN, Selby DA, Vidgen B, Georgatzis K, Hellman B, Lakshminarayana R, Chowdhury A, Schultz DM, Sanders C, Sergeant JC, Dixon WG.

JMIR Mhealth Uhealth. 2017 Nov 1;5(11):e168. doi: 10.2196/mhealth.8162.


Supplementing electronic health records through sample collection and patient diaries: A study set within a primary care research database.

Joseph RM, Soames J, Wright M, Sultana K, van Staa TP, Dixon WG.

Pharmacoepidemiol Drug Saf. 2018 Feb;27(2):239-242. doi: 10.1002/pds.4323. Epub 2017 Sep 19.


Spectrum of lymphomas across different drug treatment groups in rheumatoid arthritis: a European registries collaborative project.

Mercer LK, Regierer AC, Mariette X, Dixon WG, Baecklund E, Hellgren K, Dreyer L, Hetland ML, Cordtz R, Hyrich K, Strangfeld A, Zink A, Canhao H, Hernandez MV, Tubach F, Gottenberg JE, Morel J, Zavada J, Iannone F, Askling J, Listing J.

Ann Rheum Dis. 2017 Dec;76(12):2025-2030. doi: 10.1136/annrheumdis-2017-211623. Epub 2017 Aug 19.


A comparison of methods for estimating the temporal change in a continuous variable: Example of HbA1c in patients with diabetes.

Sheppard T, Tamblyn R, Abrahamowicz M, Lunt M, Sperrin M, Dixon WG.

Pharmacoepidemiol Drug Saf. 2017 Dec;26(12):1474-1482. doi: 10.1002/pds.4273. Epub 2017 Aug 15.


Response to: Quantifying the hepatotoxic risk of alcohol consumption in patients with rheumatoid arthritis by Kremer and Weinblatt.

Humphreys JH, Costello R, Verstappen SM, Dixon WG.

Ann Rheum Dis. 2018 Jan;77(1):e5. doi: 10.1136/annrheumdis-2017-211670. Epub 2017 Jun 8. No abstract available.


Predictors of distress in female breast cancer survivors: a systematic review.

Syrowatka A, Motulsky A, Kurteva S, Hanley JA, Dixon WG, Meguerditchian AN, Tamblyn R.

Breast Cancer Res Treat. 2017 Sep;165(2):229-245. doi: 10.1007/s10549-017-4290-9. Epub 2017 May 28. Review.


Patient perceptions of glucocorticoid side effects: a cross-sectional survey of users in an online health community.

Costello R, Patel R, Humphreys J, McBeth J, Dixon WG.

BMJ Open. 2017 Apr 3;7(4):e014603. doi: 10.1136/bmjopen-2016-014603.


Quantifying the hepatotoxic risk of alcohol consumption in patients with rheumatoid arthritis taking methotrexate.

Humphreys JH, Warner A, Costello R, Lunt M, Verstappen SMM, Dixon WG.

Ann Rheum Dis. 2017 Sep;76(9):1509-1514. doi: 10.1136/annrheumdis-2016-210629. Epub 2017 Mar 23.


Cloudy with a Chance of Pain: Engagement and Subsequent Attrition of Daily Data Entry in a Smartphone Pilot Study Tracking Weather, Disease Severity, and Physical Activity in Patients With Rheumatoid Arthritis.

Reade S, Spencer K, Sergeant JC, Sperrin M, Schultz DM, Ainsworth J, Lakshminarayana R, Hellman B, James B, McBeth J, Sanders C, Dixon WG.

JMIR Mhealth Uhealth. 2017 Mar 24;5(3):e37. doi: 10.2196/mhealth.6496.


Drug-specific risk and characteristics of lupus and vasculitis-like events in patients with rheumatoid arthritis treated with TNFi: results from BSRBR-RA.

Jani M, Dixon WG, Kersley-Fleet L, Bruce IN, Chinoy H, Barton A, Lunt M, Watson K; BSRBR-RA*; BSRBR-RA Control Centre Consortium*, Symmons DP, Hyrich KL.

RMD Open. 2017 Jan 17;3(1):e000314. doi: 10.1136/rmdopen-2016-000314. eCollection 2017. Erratum in: RMD Open. 2017 Feb 23;3(1):e000314corr1.


Relationship between exposure to tumour necrosis factor inhibitor therapy and incidence and severity of myocardial infarction in patients with rheumatoid arthritis.

Low AS, Symmons DP, Lunt M, Mercer LK, Gale CP, Watson KD, Dixon WG, Hyrich KL; British Society for Rheumatology Biologics Register for Rheumatoid Arthritis (BSRBR-RA) and the BSRBR Control Centre Consortium.

Ann Rheum Dis. 2017 Apr;76(4):654-660. doi: 10.1136/annrheumdis-2016-209784. Epub 2017 Jan 10.


Timing of glucocorticoid administration: a cross-sectional survey of glucocorticoid users in an online social network for health.

Costello R, Patel R, Humphreys J, McBeth J, Dixon WG.

Rheumatology (Oxford). 2017 Mar 1;56(3):494-495. doi: 10.1093/rheumatology/kew421. No abstract available.


Response to: 'Does the risk of lymphoma in patients with RA treated with TNF inhibitors differ according to the histological subtype and the type of TNF inhibitor?' by Nocturne et al.

Mercer LK, Galloway JB, Lunt M, Davies R, Low AA, Dixon WG, Watson KD, Symmons DP, Hyrich KL.

Ann Rheum Dis. 2017 Feb;76(2):e4. doi: 10.1136/annrheumdis-2016-210631. Epub 2016 Dec 1. No abstract available.


The Association between Systemic Glucocorticoid Use and the Risk of Cataract and Glaucoma in Patients with Rheumatoid Arthritis: A Systematic Review and Meta-Analysis.

Black RJ, Hill CL, Lester S, Dixon WG.

PLoS One. 2016 Nov 15;11(11):e0166468. doi: 10.1371/journal.pone.0166468. eCollection 2016. Review.


Patient global assessment in measuring disease activity in rheumatoid arthritis: a review of the literature.

Nikiphorou E, Radner H, Chatzidionysiou K, Desthieux C, Zabalan C, van Eijk-Hustings Y, Dixon WG, Hyrich KL, Askling J, Gossec L.

Arthritis Res Ther. 2016 Oct 28;18(1):251. Review.


Smoking-Related Mortality in Patients With Early Rheumatoid Arthritis: A Retrospective Cohort Study Using the Clinical Practice Research Datalink.

Joseph RM, Movahedi M, Dixon WG, Symmons DP.

Arthritis Care Res (Hoboken). 2016 Nov;68(11):1598-1606. doi: 10.1002/acr.22882. Epub 2016 Oct 6.


A microcosting study of immunogenicity and tumour necrosis factor alpha inhibitor drug level tests for therapeutic drug monitoring in clinical practice.

Jani M, Gavan S, Chinoy H, Dixon WG, Harrison B, Moran A, Barton A, Payne K.

Rheumatology (Oxford). 2016 Dec;55(12):2131-2137. Epub 2016 Aug 29.


The incidence of cancer in patients with rheumatoid arthritis and a prior malignancy who receive TNF inhibitors or rituximab: results from the British Society for Rheumatology Biologics Register-Rheumatoid Arthritis.

Silva-Fernández L, Lunt M, Kearsley-Fleet L, Watson KD, Dixon WG, Symmons DP, Hyrich KL; British Society for Rheumatology Biologics Register (BSRBR) Control Centre Consortium.

Rheumatology (Oxford). 2016 Nov;55(11):2033-2039. Epub 2016 Aug 22.


Risk of lymphoma in patients exposed to antitumour necrosis factor therapy: results from the British Society for Rheumatology Biologics Register for Rheumatoid Arthritis.

Mercer LK, Galloway JB, Lunt M, Davies R, Low AL, Dixon WG, Watson KD; BSRBR Control Centre Consortium, Symmons DP, Hyrich KL.

Ann Rheum Dis. 2017 Mar;76(3):497-503. doi: 10.1136/annrheumdis-2016-209389. Epub 2016 Aug 8.


Risk of invasive melanoma in patients with rheumatoid arthritis treated with biologics: results from a collaborative project of 11 European biologic registers.

Mercer LK, Askling J, Raaschou P, Dixon WG, Dreyer L, Hetland ML, Strangfeld A, Zink A, Mariette X, Finckh A, Canhao H, Iannone F, Zavada J, Morel J, Gottenberg JE, Hyrich KL, Listing J.

Ann Rheum Dis. 2017 Feb;76(2):386-391. doi: 10.1136/annrheumdis-2016-209285. Epub 2016 Jun 15.


A review of the methods used to define glucocorticoid exposure and risk attribution when investigating the risk of fracture in a rheumatoid arthritis population.

Robinson DE, Dennison EM, Cooper C, van Staa TP, Dixon WG.

Bone. 2016 Sep;90:107-15. doi: 10.1016/j.bone.2016.06.001. Epub 2016 Jun 3. Review.


Oral glucocorticoid therapy and all-cause and cause-specific mortality in patients with rheumatoid arthritis: a retrospective cohort study.

Movahedi M, Costello R, Lunt M, Pye SR, Sergeant JC, Dixon WG.

Eur J Epidemiol. 2016 Oct;31(10):1045-1055. Epub 2016 Jun 2.


Pharmacosurveillance without borders: electronic health records in different countries can be used to address important methodological issues in estimating the risk of adverse events.

Tamblyn R, Girard N, Dixon WG, Haas J, Bates DW, Sheppard T, Eguale T, Buckeridge D, Abrahamowicz M, Forster A.

J Clin Epidemiol. 2016 Sep;77:101-111. doi: 10.1016/j.jclinepi.2016.03.033. Epub 2016 May 20.


Defining Disease Phenotypes in Primary Care Electronic Health Records by a Machine Learning Approach: A Case Study in Identifying Rheumatoid Arthritis.

Zhou SM, Fernandez-Gutierrez F, Kennedy J, Cooksey R, Atkinson M, Denaxas S, Siebert S, Dixon WG, O'Neill TW, Choy E, Sudlow C; UK Biobank Follow-up and Outcomes Group, Brophy S.

PLoS One. 2016 May 2;11(5):e0154515. doi: 10.1371/journal.pone.0154515. eCollection 2016.


Corrigendum to "Risk of infection with biologic antirheumatic therapies in patients with rheumatoid arthritis" [Best Pract Res Clin Rheumatol 29 (2) (2015) 290-305].

Lahiri M, Dixon WG.

Best Pract Res Clin Rheumatol. 2015 Dec;29(6):826. doi: 10.1016/j.berh.2015.10.002. Epub 2015 Nov 19. No abstract available.


Systemic glucocorticoid therapy and adrenal insufficiency in adults: A systematic review.

Joseph RM, Hunter AL, Ray DW, Dixon WG.

Semin Arthritis Rheum. 2016 Aug;46(1):133-41. doi: 10.1016/j.semarthrit.2016.03.001. Epub 2016 Mar 9.


Patient Perspectives on Sharing Anonymized Personal Health Data Using a Digital System for Dynamic Consent and Research Feedback: A Qualitative Study.

Spencer K, Sanders C, Whitley EA, Lund D, Kaye J, Dixon WG.

J Med Internet Res. 2016 Apr 15;18(4):e66. doi: 10.2196/jmir.5011.


Points to consider for reporting, screening for and preventing selected comorbidities in chronic inflammatory rheumatic diseases in daily practice: a EULAR initiative.

Baillet A, Gossec L, Carmona L, Wit Md, van Eijk-Hustings Y, Bertheussen H, Alison K, Toft M, Kouloumas M, Ferreira RJ, Oliver S, Rubbert-Roth A, van Assen S, Dixon WG, Finckh A, Zink A, Kremer J, Kvien TK, Nurmohamed M, van der Heijde D, Dougados M.

Ann Rheum Dis. 2016 Jun;75(6):965-73. doi: 10.1136/annrheumdis-2016-209233. Epub 2016 Mar 16. Review.


Genome-wide association analysis identifies novel loci for chronotype in 100,420 individuals from the UK Biobank.

Lane JM, Vlasac I, Anderson SG, Kyle SD, Dixon WG, Bechtold DA, Gill S, Little MA, Luik A, Loudon A, Emsley R, Scheer FA, Lawlor DA, Redline S, Ray DW, Rutter MK, Saxena R.

Nat Commun. 2016 Mar 9;7:10889. doi: 10.1038/ncomms10889.

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