Jonathan W Bartlett

Jonathan W Bartlett

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Jonathan W Bartlett

Jonathan W Bartlett

Publications by authors named "Jonathan W Bartlett"

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Disease Course Varies According to Age and Symptom Length in Alzheimer's Disease.

J Alzheimers Dis 2018 ;64(2):631-642

Department of Medical Statistics, Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, UK.

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http://dx.doi.org/10.3233/JAD-170841DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6207933PMC
July 2019

Multiple imputation of missing data in nested case-control and case-cohort studies.

Biometrics 2018 12 5;74(4):1438-1449. Epub 2018 Jun 5.

Department of Public Health and Primary Care, University of Cambridge, Cambridge, U.K.

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http://dx.doi.org/10.1111/biom.12910DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6481559PMC
December 2018

Covariate adjustment and estimation of mean response in randomised trials.

Pharm Stat 2018 09 11;17(5):648-666. Epub 2018 Jul 11.

Statistical Innovation Group, Advanced Analytics Centre, AstraZeneca, Cambridge, UK.

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http://dx.doi.org/10.1002/pst.1880DOI Listing
September 2018

Bayesian correction for covariate measurement error: A frequentist evaluation and comparison with regression calibration.

Stat Methods Med Res 2018 06 28;27(6):1695-1708. Epub 2016 Sep 28.

2 Department of Medical Statistics, London School of Hygiene & Tropical Medicine, London, UK.

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http://dx.doi.org/10.1177/0962280216667764DOI Listing
June 2018

Missing binary outcomes under covariate-dependent missingness in cluster randomised trials.

Stat Med 2017 Aug 29;36(19):3092-3109. Epub 2017 May 29.

Statistical Innovation Group, AstraZeneca, Cambridge, U.K.

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http://dx.doi.org/10.1002/sim.7334DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5518290PMC
August 2017

Missing continuous outcomes under covariate dependent missingness in cluster randomised trials.

Stat Methods Med Res 2017 Jun 13;26(3):1543-1562. Epub 2016 May 13.

2 Statistical Innovation Group, AstraZeneca, Cambridge, UK.

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http://dx.doi.org/10.1177/0962280216648357DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5467798PMC
June 2017

Growth of HIV-exposed uninfected, compared with HIV-unexposed, Zambian children: a longitudinal analysis from infancy to school age.

BMC Pediatr 2017 03 16;17(1):80. Epub 2017 Mar 16.

Department of Population Health, Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, Keppel Street, London, UK.

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http://dx.doi.org/10.1186/s12887-017-0828-6DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5356250PMC
March 2017

Multiple imputation of missing covariates for the Cox proportional hazards cure model.

Stat Med 2016 11 21;35(26):4701-4717. Epub 2016 Jul 21.

Department of Biostatistics, University of Michigan, Ann Arbor, MI, U.S.A.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5053880PMC
http://dx.doi.org/10.1002/sim.7048DOI Listing
November 2016

Missing covariates in competing risks analysis.

Biostatistics 2016 10 13;17(4):751-63. Epub 2016 May 13.

Department of Biostatistics, School of Public Health, University of Michigan, Ann Arbor, MI, USA.

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http://dx.doi.org/10.1093/biostatistics/kxw019DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5031948PMC
October 2016

The Authors Reply.

Am J Epidemiol 2016 07 29;184(2):161. Epub 2016 Jun 29.

Department of Medical Statistics, Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, United Kingdom MRC Clinical Trials Unit, Institute of Clinical Trials and Methodology, School of Life and Medical Sciences, University College London, London, United Kingdom.

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https://academic.oup.com/aje/article-lookup/doi/10.1093/aje/
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http://dx.doi.org/10.1093/aje/kww067DOI Listing
July 2016

Multiple imputation of covariates by fully conditional specification: Accommodating the substantive model.

Stat Methods Med Res 2015 Aug 12;24(4):462-87. Epub 2014 Feb 12.

Department of Medical Statistics, London School of Hygiene & Tropical Medicine, UK MRC Clinical Trials Unit, London, UK.

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http://dx.doi.org/10.1177/0962280214521348DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4513015PMC
August 2015

APOE ε4 is associated with disproportionate progressive hippocampal atrophy in AD.

PLoS One 2014 30;9(5):e97608. Epub 2014 May 30.

Dementia Research Centre, UCL Institute of Neurology, London, United Kingdom; Centre for Medical Image Computing, University College London, London, United Kingdom.

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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0097608PLOS
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4039513PMC
January 2015

Corrigendum: Improving upon the efficiency of complete case analysis when covariates are MNAR (10.1093/biostatistics/kxu023).

Biostatistics 2015 Jan;16(1):205

Department of Applied Mathematics, Computer Science and Statistics, Ghent University, Krijgslaan, 281 S9, B-9000 Ghent, Belgium.

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http://dx.doi.org/10.1093/biostatistics/kxu051DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4989376PMC
January 2015

CSF neurofilament light differs in neurodegenerative diseases and predicts severity and survival.

Neurology 2014 Nov 22;83(21):1945-53. Epub 2014 Oct 22.

From the Clinical Neurochemistry Laboratory (T.S., C.R., N.M., K.B., H.Z.), Institute of Neuroscience and Physiology, Department of Neurochemistry, the Sahlgrenska Academy at the University of Gothenburg, Mölndal; Division of Clinical Geriatrics, Department of Neurobiology, Care Sciences, and Society (B.F., D.R., B.W., M.E.), and KI Alzheimer Disease Research Center (A.W.), Karolinska Institutet, Stockholm; Department of Geriatric Medicine (B.F., D.R., M.E.), Karolinska University Hospital, Stockholm, Sweden; Centre for Statistical Methodology (J.W.B.), London School of Hygiene & Tropical Medicine, London, UK; Department of Veterans Affairs Medical Center (N.M.), Center for Imaging of Neurodegenerative Diseases, San Francisco, CA; Clinical Memory Research Unit (K.N.), Department of Clinical Sciences Malmö, Lund University, Malmö; Department of Public Health and Caring Sciences/Geriatrics (L.K.), Uppsala University; Institute of Neuroscience and Physiology (L.R.), Department of Neurology, the Sahlgrenska Academy at the University of Gothenburg, Sweden; and UCL Institute of Neurology (J.M.S., H.Z.), Queen Square, London, UK.

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http://dx.doi.org/10.1212/WNL.0000000000001015DOI Listing
November 2014

Improving upon the efficiency of complete case analysis when covariates are MNAR.

Biostatistics 2014 Oct 6;15(4):719-30. Epub 2014 Jun 6.

Department of Applied Mathematics, Computer Science and Statistics, Ghent University, Krijgslaan, 281 S9, B-9000 Ghent, Belgium.

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http://dx.doi.org/10.1093/biostatistics/kxu023DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4173105PMC
October 2014

Multiple imputation for handling systematically missing confounders in meta-analysis of individual participant data.

Stat Med 2013 Dec 16;32(28):4890-905. Epub 2013 Jul 16.

MRC Biostatistics Unit, Institute of Public Health, Robinson Way, Cambridge CB2 0SR, U.K.; DBIM, Hôpital Saint-Louis, APHP, Paris, France; Université Paris Diderot, Paris, France; Inserm UMRS 717, Paris, France.

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http://dx.doi.org/10.1002/sim.5894DOI Listing
December 2013

Targeted recruitment using cerebrospinal fluid biomarkers: implications for Alzheimer's disease therapeutic trials.

J Alzheimers Dis 2013 ;34(2):431-7

Dementia Research Centre, UCL Institute of Neurology, Queen Square, London, UK.

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http://dx.doi.org/10.3233/JAD-121936DOI Listing
October 2013

Socioeconomic and early-life factors and risk of being overweight or obese in children of Swedish- and foreign-born parents.

Pediatr Res 2013 Sep 25;74(3):356-63. Epub 2013 Jun 25.

Centre for Health Equity Studies, Karolinska Institutet/Stockholm University, Stockholm, Sweden.

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http://dx.doi.org/10.1038/pr.2013.108DOI Listing
September 2013

Determining cut-points for Alzheimer's disease biomarkers: statistical issues, methods and challenges.

Biomark Med 2012 Aug;6(4):391-400

Centre for Statistical Methodology, London School of Hygiene & Tropical Medicine, Keppel Street, London, UK.

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http://dx.doi.org/10.2217/bmm.12.49DOI Listing
August 2012

Gray matter atrophy rate as a marker of disease progression in AD.

Neurobiol Aging 2012 Jul 15;33(7):1194-202. Epub 2010 Dec 15.

Department of Neuroinflammation, UCL Institute of Neurology, Queen Square, London, UK.

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http://dx.doi.org/10.1016/j.neurobiolaging.2010.11.001DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3657171PMC
July 2012

Accent processing in dementia.

Neuropsychologia 2012 Jul 1;50(9):2233-44. Epub 2012 Jun 1.

Dementia Research Centre, UCL Institute of Neurology, Queen Square, London WC1N 3BG, UK.

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http://dx.doi.org/10.1016/j.neuropsychologia.2012.05.027DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3484399PMC
July 2012

Multiple imputation of missing covariates with non-linear effects and interactions: an evaluation of statistical methods.

BMC Med Res Methodol 2012 Apr 10;12:46. Epub 2012 Apr 10.

MRC Biostatistics Unit, Institute of Public Health, Cambridge CB2 0SR, UK.

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http://dx.doi.org/10.1186/1471-2288-12-46DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3403931PMC
April 2012

Multiple imputation models should incorporate the outcome in the model of interest.

Brain 2011 Nov 6;134(Pt 11):e189; author reply e190. Epub 2011 Jun 6.

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http://dx.doi.org/10.1093/brain/awr061DOI Listing
November 2011

Voice processing in dementia: a neuropsychological and neuroanatomical analysis.

Brain 2011 Sep;134(Pt 9):2535-47

Dementia Research Centre, Institute of Neurology, University College London, Queen Square, London WC1N 3BG, UK.

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http://dx.doi.org/10.1093/brain/awr205DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3170540PMC
September 2011

Brain MAPS: an automated, accurate and robust brain extraction technique using a template library.

Neuroimage 2011 Apr 31;55(3):1091-108. Epub 2010 Dec 31.

Dementia Research Centre, UCL Institute of Neurology, Queen Square, London WC1N 3BG, UK.

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http://dx.doi.org/10.1016/j.neuroimage.2010.12.067DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3554789PMC
April 2011

Increased brain atrophy rates in cognitively normal older adults with low cerebrospinal fluid Aβ1-42.

Ann Neurol 2010 Dec;68(6):825-34

Dementia Research Centre, University College London, Institute of Neurology, London, United Kingdom.

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http://dx.doi.org/10.1002/ana.22315DOI Listing
December 2010

Automated cross-sectional and longitudinal hippocampal volume measurement in mild cognitive impairment and Alzheimer's disease.

Neuroimage 2010 Jul 15;51(4):1345-59. Epub 2010 Mar 15.

Dementia Research Centre, UCL Institute of Neurology, Queen Square, London, WC1N 3BG, UK; Centre for Medical Image Computing, University College London, Gower Street, London, WC1E 6BT, UK.

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http://dx.doi.org/10.1016/j.neuroimage.2010.03.018DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2873209PMC
July 2010

A meta-analysis of hippocampal atrophy rates in Alzheimer's disease.

Neurobiol Aging 2009 Nov 17;30(11):1711-23. Epub 2008 Mar 17.

Dementia Research Centre, University College London, Institute of Neurology, Queen Square, London, UK.

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http://dx.doi.org/10.1016/j.neurobiolaging.2008.01.010DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2773132PMC
November 2009

Linear mixed models for replication data to efficiently allow for covariate measurement error.

Stat Med 2009 Nov;28(25):3158-78

Medical Statistics Unit, London School of Hygiene and Tropical Medicine, Keppel Street, London WC1E 7HT, U.K.

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http://dx.doi.org/10.1002/sim.3713DOI Listing
November 2009

Detecting treatment effects on brain atrophy in relapsing remitting multiple sclerosis: sample size estimates.

J Neurol 2007 Nov 25;254(11):1588-94. Epub 2007 Oct 25.

MS NMR Research Unit, University College London Institute of Neurology, Queen Square, London, WC1N 3BG, UK.

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http://dx.doi.org/10.1007/s00415-007-0599-3DOI Listing
November 2007

Automated measurement of hippocampal atrophy using fluid-registered serial MRI in AD and controls.

J Comput Assist Tomogr 2007 Jul-Aug;31(4):581-7

Dementia Research Centre, University College London, Institute of Neurology, Queen Square, London, UK.

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http://dx.doi.org/10.1097/rct.0b013e31802f4139DOI Listing
October 2007

Tracking atrophy progression in familial Alzheimer's disease: a serial MRI study.

Lancet Neurol 2006 Oct;5(10):828-34

Dementia Research Centre, University College London, Institute of Neurology, London, UK.

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http://dx.doi.org/10.1016/S1474-4422(06)70550-6DOI Listing
October 2006