| # | Title | Journal | Year | Citations |
|---|
| 1 | The PRISMA 2020 statement: an updated guideline for reporting systematic reviews | BMJ, The | 2021 | 26,066 |
| 2 | ROBINS-I: a tool for assessing risk of bias in non-randomised studies of interventions | BMJ, The | 2016 | 8,654 |
| 3 | Preferred reporting items for systematic review and meta-analysis protocols (PRISMA-P) 2015: elaboration and explanation | BMJ, The | 2015 | 8,367 |
| 4 | Developing and evaluating complex interventions: the new Medical Research Council guidance | BMJ, The | 2008 | 7,454 |
| 5 | Better reporting of interventions: template for intervention description and replication (TIDieR) checklist and guide | BMJ, The | 2014 | 5,661 |
| 6 | Process evaluation of complex interventions: Medical Research Council guidance | BMJ, The | 2015 | 3,602 |
| 7 | SPIRIT 2013 explanation and elaboration: guidance for protocols of clinical trials | BMJ, The | 2013 | 3,435 |
| 8 | PRISMA 2020 explanation and elaboration: updated guidance and exemplars for reporting systematic reviews | BMJ, The | 2021 | 3,413 |
| 9 | Clinical characteristics of 113 deceased patients with coronavirus disease 2019: retrospective study | BMJ, The | 2020 | 3,061 |
| 10 | Features of 20 133 UK patients in hospital with covid-19 using the ISARIC WHO Clinical Characterisation Protocol: prospective observational cohort study | BMJ, The | 2020 | 2,474 |
| 11 | Prediction models for diagnosis and prognosis of covid-19: systematic review and critical appraisal | BMJ, The | 2020 | 2,134 |
| 12 | Factors associated with hospital admission and critical illness among 5279 people with coronavirus disease 2019 in New York City: prospective cohort study | BMJ, The | 2020 | 2,071 |
| 13 | STARD 2015: an updated list of essential items for reporting diagnostic accuracy studies | BMJ, The | 2015 | 1,914 |
| 14 | Medical error—the third leading cause of death in the US | BMJ, The | 2016 | 1,880 |
| 15 | Transparent reporting of a multivariable prediction model for individual prognosis or diagnosis (TRIPOD): the TRIPOD statement | BMJ, The | 2015 | 1,842 |
| 16 | Consort 2010 statement: extension to cluster randomised trials | BMJ, The | 2012 | 1,840 |
| 17 | Clinical findings in a group of patients infected with the 2019 novel coronavirus (SARS-Cov-2) outside of Wuhan, China: retrospective case series | BMJ, The | 2020 | 1,611 |
| 18 | A new framework for developing and evaluating complex interventions: update of Medical Research Council guidance | BMJ, The | 2021 | 1,567 |
| 19 | Cancer risk in 680 000 people exposed to computed tomography scans in childhood or adolescence: data linkage study of 11 million Australians | BMJ, The | 2013 | 1,523 |
| 20 | CONSORT 2010 statement: extension to randomised pilot and feasibility trials | BMJ, The | 2016 | 1,491 |
| 21 | Clinical manifestations, risk factors, and maternal and perinatal outcomes of coronavirus disease 2019 in pregnancy: living systematic review and meta-analysis | BMJ, The | 2020 | 1,474 |
| 22 | Synthesis without meta-analysis (SWiM) in systematic reviews: reporting guideline | BMJ, The | 2020 | 1,464 |
| 23 | Managing mental health challenges faced by healthcare workers during covid-19 pandemic | BMJ, The | 2020 | 1,319 |
| 24 | Patient reported outcome measures could help transform healthcare | BMJ, The | 2013 | 1,268 |
| 25 | Covid-19: risk factors for severe disease and death | BMJ, The | 2020 | 1,242 |
| 26 | Viral load dynamics and disease severity in patients infected with SARS-CoV-2 in Zhejiang province, China, January-March 2020: retrospective cohort study | BMJ, The | 2020 | 1,226 |
| 27 | Evidence based medicine: a movement in crisis? | BMJ, The | 2014 | 1,224 |
| 28 | Fruit and vegetable consumption and mortality from all causes, cardiovascular disease, and cancer: systematic review and dose-response meta-analysis of prospective cohort studies | BMJ, The | 2014 | 1,212 |
| 29 | A GRADE Working Group approach for rating the quality of treatment effect estimates from network meta-analysis | BMJ, The | 2014 | 1,179 |
| 30 | The PRECIS-2 tool: designing trials that are fit for purpose | BMJ, The | 2015 | 1,162 |
| 31 | Dietary sugars and body weight: systematic review and meta-analyses of randomised controlled trials and cohort studies | BMJ, The | 2012 | 1,160 |
| 32 | Management of post-acute covid-19 in primary care | BMJ, The | 2020 | 1,109 |
| 33 | Consolidated Health Economic Evaluation Reporting Standards (CHEERS) statement | BMJ, The | 2013 | 1,082 |
| 34 | Bariatric surgery versus non-surgical treatment for obesity: a systematic review and meta-analysis of randomised controlled trials | BMJ, The | 2013 | 1,019 |
| 35 | Effect of longer term modest salt reduction on blood pressure: Cochrane systematic review and meta-analysis of randomised trials | BMJ, The | 2013 | 979 |
| 36 | Long covid—mechanisms, risk factors, and management | BMJ, The | 2021 | 946 |
| 37 | Effect of lower sodium intake on health: systematic review and meta-analyses | BMJ, The | 2013 | 931 |
| 38 | Intake of saturated and trans unsaturated fatty acids and risk of all cause mortality, cardiovascular disease, and type 2 diabetes: systematic review and meta-analysis of observational studies | BMJ, The | 2015 | 904 |
| 39 | Effectiveness of the Pfizer-BioNTech and Oxford-AstraZeneca vaccines on covid-19 related symptoms, hospital admissions, and mortality in older adults in England: test negative case-control study | BMJ, The | 2021 | 881 |
| 40 | The stepped wedge cluster randomised trial: rationale, design, analysis, and reporting | BMJ, The | 2015 | 878 |
| 41 | Kawasaki-like multisystem inflammatory syndrome in children during the covid-19 pandemic in Paris, France: prospective observational study | BMJ, The | 2020 | 835 |
| 42 | Hydroxychloroquine in patients with mainly mild to moderate coronavirus disease 2019: open label, randomised controlled trial | BMJ, The | 2020 | 811 |
| 43 | Physical activity and risk of breast cancer, colon cancer, diabetes, ischemic heart disease, and ischemic stroke events: systematic review and dose-response meta-analysis for the Global Burden of Disease Study 2013 | BMJ, The | 2016 | 809 |
| 44 | Characteristics and outcomes of pregnant women admitted to hospital with confirmed SARS-CoV-2 infection in UK: national population based cohort study | BMJ, The | 2020 | 809 |
| 45 | Prevalence of diabetes recorded in mainland China using 2018 diagnostic criteria from the American Diabetes Association: national cross sectional study | BMJ, The | 2020 | 809 |
| 46 | Calculating the sample size required for developing a clinical prediction model | BMJ, The | 2020 | 804 |
| 47 | Assessment and management of behavioral and psychological symptoms of dementia | BMJ, The | 2015 | 801 |
| 48 | Occurrence, prevention, and management of the psychological effects of emerging virus outbreaks on healthcare workers: rapid review and meta-analysis | BMJ, The | 2020 | 788 |
| 49 | Risk stratification of patients admitted to hospital with covid-19 using the ISARIC WHO Clinical Characterisation Protocol: development and validation of the 4C Mortality Score | BMJ, The | 2020 | 779 |
| 50 | Vitamin D and multiple health outcomes: umbrella review of systematic reviews and meta-analyses of observational studies and randomised trials | BMJ, The | 2014 | 752 |
