Symptom patterns and life with post-acute COVID-19 in children aged 8-17: a mixed methods studyprotocol. (2023)
Journal Article
Faux-Nightingale, A., Burton, C., Twohig, H., Bucknall, M., Carroll, W., Chew-Graham, C., Dunn, K., Gilchrist, F., Helliwell, T., Lawton, O., Lawton, S., Mallen, C., Saunders, B., Van Der Windt, D., & Welsh, V. (2023). Symptom patterns and life with post-acute COVID-19 in children aged 8-17: a mixed methods studyprotocol. British Journal of General Practice Open (BJGP Open), 7(2), Article BJGPO20220149. https://doi.org/10.3399/bjgpo.2022.0149

Background: While there is a substantial body of knowledge about acute COVID-19, less is known about long-COVID, where symptoms continue beyond 4 weeks.

Aim: To describe longer-term effects of COVID-19 infection in children and young people (CYP)... Read More about Symptom patterns and life with post-acute COVID-19 in children aged 8-17: a mixed methods studyprotocol..

Investigating the usefulness of Automated Check-in Data Collection in general practice (AC DC Study): a multicentre, cross-sectional study in England. (2023)
Journal Article
Lawton, S., Mallen, C., Muller, S., Wathall, S., & Helliwell, T. (2023). Investigating the usefulness of Automated Check-in Data Collection in general practice (AC DC Study): a multicentre, cross-sectional study in England. BMJ Open, 13(1), Article e062389. https://doi.org/10.1136/bmjopen-2022-062389

Objectives: To investigate the usefulness of using automated appointment check-in screens to collect brief research data from patients, prior to their general practice consultation.

Design: A descriptive, cross-sectional study.

Setting: Nine ge... Read More about Investigating the usefulness of Automated Check-in Data Collection in general practice (AC DC Study): a multicentre, cross-sectional study in England..

The impact of polymyalgia rheumatica on intimate sexual relationships: findings from the PMR Cohort Study (2022)
Journal Article
Muller, S., Hider, S. L., Hider, S., Ranasinghe, . P., Helliwell, T., Lawton, S. A., Lawton, S., Protheroe, W., Mallen, C. D., & Mallen, C. (2022). The impact of polymyalgia rheumatica on intimate sexual relationships: findings from the PMR Cohort Study. Rheumatology Advances in Practice, 6(3), https://doi.org/10.1093/rap/rkac070

Objectives To determine the impact of polymyalgia rheumatica (PMR) on intimate and sexual relationships over time. Methods The PMR Cohort study (UKCRN ID16477) is a longitudinal study of patients with incident PMR in English primary care. Participant... Read More about The impact of polymyalgia rheumatica on intimate sexual relationships: findings from the PMR Cohort Study.

Treatment and Outcomes of Acute Myocardial Infarction in Patients With Polymyalgia Rheumatica With and Without Giant Cell Arteritis. (2022)
Journal Article
Sokhal, B., Matetić, A., Bharadwaj, A., Helliwell, T., Abhishek, A., Mallen, C., Mohamed, M., & Mamas, M. (2022). Treatment and Outcomes of Acute Myocardial Infarction in Patients With Polymyalgia Rheumatica With and Without Giant Cell Arteritis. American Journal of Cardiology, 12-19. https://doi.org/10.1016/j.amjcard.2022.03.034

This study analyzed the characteristics, management, and outcomes of patients with polymyalgia rheumatica (PMR) hospitalized with acute myocardial infarction (AMI), including sensitivity analysis for presence of giant cell arteritis (GCA). Using the... Read More about Treatment and Outcomes of Acute Myocardial Infarction in Patients With Polymyalgia Rheumatica With and Without Giant Cell Arteritis..

Acute Myocardial Infarction in Autoimmune Rheumatological Disease: A Nationwide Analysis of Clinical outcomes and Predictors of Management Strategy (2021)
Journal Article
Mamas, Clarson, Roddy, Mallen, & Helliwell. (2021). Acute Myocardial Infarction in Autoimmune Rheumatological Disease: A Nationwide Analysis of Clinical outcomes and Predictors of Management Strategy. Mayo Clinic Proceedings, 388-399. https://doi.org/10.1016/j.mayocp.2020.04.044

Objectives: The present study sought to examine national-level differences in management strategies and outcomes in patients with autoimmune rheumatic disease (AIRD) with acute myocardial infarction (AMI) between 2004 and 2014.
Methods: All AMI hos... Read More about Acute Myocardial Infarction in Autoimmune Rheumatological Disease: A Nationwide Analysis of Clinical outcomes and Predictors of Management Strategy.

Protocol for establishing a child and adolescent twin register for mental health research and capacity building in Sri Lanka and other low and middle-income countries in South Asia (2019)
Journal Article
Jayaweera, K., M Craig, J., M S Zavos, H., Abeysinghe, N., De Alwis, S., Andras, A., Dissanayake, L., Dziedzic, K., Fernando, B., Glozier, N., Hewamalage, A., Ives, J., Jordan, K. P., Kodituwakku, G., Mallen, C., Rahman, O., Zafar, S., Saxena, A., Rijsdijk, F., Saffery, R., …Sumathipala, A. (2019). Protocol for establishing a child and adolescent twin register for mental health research and capacity building in Sri Lanka and other low and middle-income countries in South Asia. BMJ Open, 9(10), Article e029332. https://doi.org/10.1136/bmjopen-2019-029332

INTRODUCTION: Worldwide, 10%-20% of children and adolescents experience mental health conditions. However, most such disorders remain undiagnosed until adolescence or adulthood. Little is known about the factors that influence mental health in childr... Read More about Protocol for establishing a child and adolescent twin register for mental health research and capacity building in Sri Lanka and other low and middle-income countries in South Asia.

Characteristics of patients with giant cell arteritis who experience visual symptoms (2019)
Journal Article
Shen Chean, C., Prior, J., Helliwell, T., Belcher, J., Mackie, S. L., Hider, S., Liddle, J., & Mallen, C. (2019). Characteristics of patients with giant cell arteritis who experience visual symptoms. Rheumatology International, 39, 1789-1796. https://doi.org/10.1007/s00296-019-04422-5

Permanent vision loss is one of the most serious complications of giant cell arteritis (GCA) and therefore prompt diagnosis is paramount. However, diagnosis of GCA remains challenging due to its frequently non-specific presentation. Our aim was to id... Read More about Characteristics of patients with giant cell arteritis who experience visual symptoms.

Antibiotic use and the risk of rheumatoid arthritis: a population-based case-control study (2019)
Journal Article
Mallen, Muller, Hider, & Helliwell. (2019). Antibiotic use and the risk of rheumatoid arthritis: a population-based case-control study. BMC Medicine, https://doi.org/10.1186/s12916-019-1394-6

Background
Antibiotic-induced disturbances of the human microbiota have been implicated in the development of chronic autoimmune conditions. This study aimed to assess whether antibiotic use is associated with the onset of rheumatoid arthritis (RA).... Read More about Antibiotic use and the risk of rheumatoid arthritis: a population-based case-control study.

Incidence, prevalence and treatment burden of Polymyalgia Rheumatica in the UK over two decades: a population-based study (2018)
Journal Article
Partington, R., Muller, S., Helliwell, T., Mallen, C., & Abdul Sultan, A. (2018). Incidence, prevalence and treatment burden of Polymyalgia Rheumatica in the UK over two decades: a population-based study. Annals of the Rheumatic Diseases, 77(12), 1750-1756. https://doi.org/10.1136/annrheumdis-2018-213883

Objective
Polymyalgia rheumatica (PMR) is the most common inflammatory rheumatic disease in older people. Contemporary estimates of the incidence and prevalence are lacking, and no previous study has assessed treatment patterns at a population level... Read More about Incidence, prevalence and treatment burden of Polymyalgia Rheumatica in the UK over two decades: a population-based study.

The real evidence for polymyalgia rheumatic as a paraneoplastic syndrome. (2018)
Journal Article
Muller, S., Hider, S., Helliwell, T., Partington, R., & Mallen, C. (2018). The real evidence for polymyalgia rheumatic as a paraneoplastic syndrome. Reumatismo, 118 - 119. https://doi.org/10.4081/reumatismo.2018.1166

Not available.

Risk of fragility fracture among patients with late-onset psoriasis: a United Kingdom population-based study (2018)
Journal Article
Mallen, Roddy, Bucknall, Muller, Hider, Helliwell, & Paskins. (2018). Risk of fragility fracture among patients with late-onset psoriasis: a United Kingdom population-based study. Osteoporosis International, 1659-1664. https://doi.org/10.1007/s00198-018-4491-z

This study aimed to examine fracture risk in patients with late-onset psoriasis. A cohort study was conducted using primary care records from the Clinical Practice Research Datalink. Psoriasis patients had a 10% increased risk of fracture compared to... Read More about Risk of fragility fracture among patients with late-onset psoriasis: a United Kingdom population-based study.

The real evidence for polymyalgia rheumatica as a paraneoplastic syndrome. (2018)
Journal Article
Muller, S., Hider, S., Helliwell, T., Partington, R., & Mallen, C. (2018). The real evidence for polymyalgia rheumatica as a paraneoplastic syndrome. Reumatismo, 23 - 34. https://doi.org/10.4081/reumatismo.2018.1031

The aim of this study was to systematically consider the evidence for polymyalgia rheumatica (PMR) as a paraneoplastic disease. A systematic review of Medline and Embase was conducted from their inception to February 2017. Risk of bias was assessed u... Read More about The real evidence for polymyalgia rheumatica as a paraneoplastic syndrome..

Challenges of diagnosis and management of giant cell arteritis in general practice: a multimethods study (2018)
Journal Article
Helliwell, T., Muller, S., Hider, S. L., Prior, J. A., Richardson, J. C., & Mallen, C. D. (2018). Challenges of diagnosis and management of giant cell arteritis in general practice: a multimethods study. BMJ Open, 8(2), Article e019320. https://doi.org/10.1136/bmjopen-2017-019320

BACKGROUND: In the UK, general practitioners (GPs) are usually the first medical contact for patients with suspected giant cell arteritis (GCA). While rare, it is critical not to miss, as delayed treatment can lead to significant complications includ... Read More about Challenges of diagnosis and management of giant cell arteritis in general practice: a multimethods study.

How can primary care physicians enhance the early diagnosis of rheumatic diseases? (2018)
Journal Article
Mallen, & Helliwell. (2018). How can primary care physicians enhance the early diagnosis of rheumatic diseases?. Expert Review of Clinical Immunology, 171-173. https://doi.org/10.1080/1744666X.2018.1429919

No abstract

Risk of fracture among patients with polymyalgia rheumatica and giant cell arteritis: a population-based study (2018)
Journal Article
Mallen, Roddy, Bucknall, Hider, Muller, Paskins, & Helliwell. (2018). Risk of fracture among patients with polymyalgia rheumatica and giant cell arteritis: a population-based study. BMC Medicine, https://doi.org/10.1186/s12916-017-0987-1

Background
Glucocorticoids are associated with increased fracture risk and are the mainstay of treatment in polymyalgia rheumatica (PMR) and giant cell arteritis (GCA). However, fracture risk in these conditions has not been previously quantified. T... Read More about Risk of fracture among patients with polymyalgia rheumatica and giant cell arteritis: a population-based study.

Association between characteristics of pain and stiffness and the functional status of patients with incident polymyalgia rheumatica from primary care (2017)
Journal Article
Cawley, A., Prior, J., Muller, S., Helliwell, T., Hider, S., Dasgupta, B., Barraclough, K., & Mallen, C. (2017). Association between characteristics of pain and stiffness and the functional status of patients with incident polymyalgia rheumatica from primary care. Clinical Rheumatology, 37(6), 1639-1644. https://doi.org/10.1007/s10067-017-3730-6

This paper aims to examine the relationship between different characteristics of pain and stiffness and the functional status of patients with newly diagnosed polymyalgia rheumatica (PMR). Baseline analysis of an inception cohort study was conducted.... Read More about Association between characteristics of pain and stiffness and the functional status of patients with incident polymyalgia rheumatica from primary care.

Characterising those with incident polymyalgia rheumatica in primary care: results from the PMR Cohort Study. (2016)
Journal Article
Muller, S., Hider, S. L., Helliwell, T., Lawton, S., Barraclough, K., Dasgupta, B., Zwierska, I., & Mallen, C. D. (2016). Characterising those with incident polymyalgia rheumatica in primary care: results from the PMR Cohort Study. Arthritis Research and Therapy, https://doi.org/10.1186/s13075-016-1097-8

BACKGROUND: The aim was to characterise the sociodemographic, general health and polymyalgia rheumatica (PMR)-specific features of participants in a large inception cohort of patients with PMR diagnosed in UK primary care. METHODS: Patients (n?=?739)... Read More about Characterising those with incident polymyalgia rheumatica in primary care: results from the PMR Cohort Study..