Publications by authors named "Roger Harbord"

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Severity of bias of a simple estimator of the causal odds ratio in Mendelian randomization studies.
Roger M Harbord, Vanessa Didelez, Tom M Palmer, Sha Meng, Jonathan A C Sterne

Stat Med· March 2013

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Using multiple genetic variants as instrumental variables for modifiable risk factors.
Tom M Palmer, Debbie A Lawlor, Roger M Harbord, Nuala A Sheehan, Jon H Tobias

Stat Methods Med Res· June 2012

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Is MRI better than CT for detecting a vascular component to dementia? A systematic review and meta-analysis.
Rebecca Beynon, Jonathan A C Sterne, Gordon Wilcock, Marcus Likeman, Roger M Harbord

BMC Neurol· June 2012

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Commentary on 'Multivariate meta-analysis: potential and promise'.
Roger M Harbord

Stat Med· September 2011

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Recommendations for examining and interpreting funnel plot asymmetry in meta-analyses of randomised controlled trials.
Jonathan A C Sterne, Alex J Sutton, John P A Ioannidis, Norma Terrin, David R Jones, Roger M Harbord

BMJ· July 2011

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Instrumental variable estimation of causal risk ratios and causal odds ratios in Mendelian randomization analyses.
Tom M Palmer, Jonathan A C Sterne, Roger M Harbord, Debbie A Lawlor, Nuala A Sheehan

Am J Epidemiol· June 2011

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Using genetic loci to understand the relationship between adiposity and psychological distress: a Mendelian Randomization study in the Copenhagen General Population Study of 53,221 adults.
Debbie A Lawlor, Roger M Harbord, Anne Tybjaerg-Hansen, Tom M Palmer, Jeppe Zacho

J Intern Med· May 2011

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Mendelian randomization studies do not support a role for raised circulating triglyceride levels influencing type 2 diabetes, glucose levels, or insulin resistance.
N Maneka G De Silva, Rachel M Freathy, Tom M Palmer, Louise A Donnelly, Jian'an Luan, Roger M Harbord

Diabetes· March 2011

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Meta-analysis of low molecular weight heparin versus placebo in patients undergoing total hip replacement and post-operative morbidity and mortality since their introduction.
Andrew Tasker, Roger Harbord, Gordon C Bannister

Hip Int· August 2010

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Genetic variation at the SLC23A1 locus is associated with circulating concentrations of L-ascorbic acid (vitamin C): evidence from 5 independent studies with >15,000 participants.
Nicholas J Timpson, Nita G Forouhi, Marie-Jo Brion, Roger M Harbord, Derek G Cook

Am J Clin Nutr· August 2010

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Can lactase persistence genotype be used to reassess the relationship between renal cell carcinoma and milk drinking? Potentials and problems in the application of Mendelian randomization.
Nicholas J Timpson, Paul Brennan, Valérie Gaborieau, Lee Moore, David Zaridze, Roger M Harbord

Cancer Epidemiol Biomarkers Prev· May 2010

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Systematic review: accuracy of anti-citrullinated Peptide antibodies for diagnosing rheumatoid arthritis.
Penny F Whiting, Nynke Smidt, Jonathan A C Sterne, Roger Harbord, Anya Burton

Ann Intern Med· April 2010

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Thighs and heart disease. Thighs and thresholds.
Roger M Harbord, Jonathan A C Sterne

BMJ· October 2009

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Does greater adiposity increase blood pressure and hypertension risk?: Mendelian randomization using the FTO/MC4R genotype.
Nicholas J Timpson, Roger Harbord, George Davey Smith, Jeppe Zacho, Anne Tybjaerg-Hansen

Hypertension· July 2009

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Genetically elevated C-reactive protein and vascular disease.
Roger M Harbord, Debbie A Lawlor, George Davey Smith

N Engl J Med· February 2009

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An empirical comparison of methods for meta-analysis of diagnostic accuracy showed hierarchical models are necessary.
Roger M Harbord, Penny Whiting, Jonathan A C Sterne, Matthias Egger, Jonathan J Deeks

J Clin Epidemiol· November 2008

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Evidence-based diagnosis.
Penny Whiting, Roger Harbord, Isabel de Salis, Matthias Egger, Jonathan Sterne

J Health Serv Res Policy· October 2008

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The association of C-reactive protein and CRP genotype with coronary heart disease: findings from five studies with 4,610 cases amongst 18,637 participants.
Debbie A Lawlor, Roger M Harbord, Nic J Timpson, Gordon D O Lowe, Ann Rumley

PLoS One· August 2008

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How much of the data published in observational studies of the association between diet and prostate or bladder cancer is usable for meta-analysis?
Geertruida E Bekkering, Ross J Harris, Steve Thomas, Anne-Marie B Mayer, Rebecca Beynon, Roger M Harbord

Am J Epidemiol· May 2008

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Mendelian randomization: using genes as instruments for making causal inferences in epidemiology.
Debbie A Lawlor, Roger M Harbord, Jonathan A C Sterne, Nic Timpson, George Davey Smith

Stat Med· April 2008

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Graphical presentation of diagnostic information.
Penny F Whiting, Jonathan A C Sterne, Marie E Westwood, Lucas M Bachmann, Roger Harbord

BMC Med Res Methodol· April 2008

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Alcohol intake and blood pressure: a systematic review implementing a Mendelian randomization approach.
Lina Chen, George Davey Smith, Roger M Harbord, Sarah J Lewis

PLoS Med· March 2008

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Exploring the developmental overnutrition hypothesis using parental-offspring associations and FTO as an instrumental variable.
Debbie A Lawlor, Nicholas J Timpson, Roger M Harbord, Sam Leary, Andy Ness

PLoS Med· March 2008

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Clustered environments and randomized genes: a fundamental distinction between conventional and genetic epidemiology.
George Davey Smith, Debbie A Lawlor, Roger Harbord, Nic Timpson, Ian Day

PLoS Med· December 2007

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