Items where Author or Contributor is "Bartlett, Jonathan"

Up a level
Export as [feed] Atom [feed] RSS
Group by: Year | Item Type | Full Text
Jump to: 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009 | 2008 | 2007 | 2006
Number of items: 68.

2023

Cornish, Rosaleen Peggy; Bartlett, Jonathan William; Macleod, John; Tilling, Kate; (2023) Complete case logistic regression with a dichotomised continuous outcome led to biased estimates. Journal of Clinical Epidemiology, 154. pp. 33-41. ISSN 0895-4356 DOI: https://doi.org/10.1016/j.jclinepi.2022.11.022
[img] [img]

2022

Haensch, Anna-Carolina; Bartlett, Jonathan; Weiß, Bernd; (2022) Multiple imputation of partially observed covariates in discrete-time survival analysis. Sociological Methods and Research. 004912412211401-004912412211401. ISSN 0049-1241 DOI: https://doi.org/10.1177/00491241221140147
[img]

Olarte Parra, Camila; Daniel, Rhian M; Bartlett, Jonathan W; (2022) Hypothetical Estimands in Clinical Trials: A Unification of Causal Inference and Missing Data Methods. Statistics in Biopharmaceutical Research, 15 (2). pp. 421-432. ISSN 1946-6315 DOI: https://doi.org/10.1080/19466315.2022.2081599
[img]

Van Lancker, Kelly; Tarima, Sergey; Bartlett, Jonathan; Bauer, Madeline; Bharani-Dharan, Bharani; Bretz, Frank; Flournoy, Nancy; Michiels, Hege; Olarte Parra, Camila; Rosenberger, James L; +1 more... Cro, Suzie; (2022) Estimands and their Estimators for Clinical Trials Impacted by the COVID-19 Pandemic: A Report from the NISS Ingram Olkin Forum Series on Unplanned Clinical Trial Disruptions. Statistics in biopharmaceutical research, 15 (1). pp. 94-111. DOI: https://doi.org/10.1080/19466315.2022.2094459
[img]

Wolbers, Marcel; Noci, Alessandro; Delmar, Paul; Gower-Page, Craig; Yiu, Sean; Bartlett, Jonathan W; (2022) Standard and reference-based conditional mean imputation. Pharmaceutical statistics, 21 (6). pp. 1246-1257. ISSN 1539-1604 DOI: https://doi.org/10.1002/pst.2234
[img]

2021

2020

Bartlett, Jonathan W; Hughes, Rachael A; (2020) Bootstrap inference for multiple imputation under uncongeniality and misspecification. Statistical methods in medical research, 29 (12). pp. 3533-3546. ISSN 0962-2802 DOI: https://doi.org/10.1177/0962280220932189
[img]

Bartlett, Jonathan W; Morris, Tim P; Stensrud, Mats J; Daniel, Rhian M; Vansteelandt, Stijn K; Burman, Carl-Fredrik; (2020) The Hazards of Period Specific and Weighted Hazard Ratios. Statistics in biopharmaceutical research, 12 (4). pp. 518-519. ISSN 1946-6315 DOI: https://doi.org/10.1080/19466315.2020.1755722
[img]

2019

2018

Barnes, Josephine; Bartlett, Jonathan W; Wolk, David A; van der Flier, Wiesje M; Frost, Chris; (2018) Disease Course Varies According to Age and Symptom Length in Alzheimer's Disease. Journal of Alzheimer's disease, 64 (2). pp. 631-642. ISSN 1387-2877 DOI: https://doi.org/10.3233/JAD-170841
[img]

2017

Hossain, A; (2017) Missing Data in Cluster Randomised Trials. PhD (research paper style) thesis, London School of Hygiene & Tropical Medicine. DOI: https://doi.org/10.17037/PUBS.04646133
[img]

2016

Bartlett, Jonathan W; Harel, Ofer; Carpenter, James R; (2016) The Authors Reply. American journal of epidemiology, 184 (2). 161-. ISSN 0002-9262 DOI: https://doi.org/10.1093/aje/kww067 Full text not available from this repository.

Bartlett, Jonathan W; Taylor, Jeremy MG; (2016) Missing covariates in competing risks analysis. Biostatistics (Oxford, England), 17 (4). pp. 751-763. ISSN 1465-4644 DOI: https://doi.org/10.1093/biostatistics/kxw019
[img] [img]

2015

2014

Bartlett, Jonathan W; Seaman, Shaun R; White, Ian R; Carpenter, James R; Alzheimer's Disease Neuroimaging Initiative*; (2014) Multiple imputation of covariates by fully conditional specification: Accommodating the substantive model. Statistical methods in medical research, 24 (4). pp. 462-487. ISSN 0962-2802 DOI: https://doi.org/10.1177/0962280214521348
[img]

Macdonald, Kate E; Leung, Kelvin K; Bartlett, Jonathan W; Blair, Melanie; Malone, Ian B; Barnes, Josephine; Ourselin, Sebastien; Fox, Nick C; Alzheimer’s Disease Neuroimaging Initiative; (2014) Automated template-based hippocampal segmentations from MRI: the effects of 1.5T or 3T field strength on accuracy. Neuroinformatics, 12 (3). pp. 405-412. ISSN 1539-2791 DOI: https://doi.org/10.1007/s12021-013-9217-y
[img]

Manning, Emily N; Barnes, Josephine; Cash, David M; Bartlett, Jonathan W; Leung, Kelvin K; Ourselin, Sebastien; Fox, Nick C; Alzheimer's Disease NeuroImaging Initiative; (2014) APOE ε4 is associated with disproportionate progressive hippocampal atrophy in AD. PloS one, 9 (5). e97608-. ISSN 1932-6203 DOI: https://doi.org/10.1371/journal.pone.0097608
[img]

Nicholas, J; Meade, T; Fiford, C; Manning, EN; Carmichael, O; Biessels, GJ; Bartlett, Jonathan; Fox, NC; Frost, C; Barnes, J; (2014) AAIC abstract: Impact of baseline adjustment for vascular risk factors on sample size for atrophy outcomes in Alzheimer's disease clinical trials. [Conference or Workshop Item] https://researchonline.lshtm.ac.uk/id/eprint/1918143 Full text not available from this repository.

Paterson, RW; Bartlett, JW; Blennow, K; Fox, NC; Alzheimer's Disease Neuroimaging Initiative; Shaw, LM; Trojanowski, JQ; Zetterberg, H; Schott, JM; (2014) Cerebrospinal fluid markers including trefoil factor 3 are associated with neurodegeneration in amyloid-positive individuals. Translational psychiatry, 4 (7). e419-. ISSN 2158-3188 DOI: https://doi.org/10.1038/tp.2014.58
[img]

Shah, Anoop D; Bartlett, Jonathan W; Carpenter, James; Nicholas, Owen; Hemingway, Harry; (2014) Comparison of random forest and parametric imputation models for imputing missing data using MICE: a CALIBER study. American journal of epidemiology, 179 (6). pp. 764-774. ISSN 0002-9262 DOI: https://doi.org/10.1093/aje/kwt312
[img]

Skillbäck, Tobias; Farahmand, Bahman; Bartlett, Jonathan W; Rosén, Christoffer; Mattsson, Niklas; Nägga, Katarina; Kilander, Lena; Religa, Dorota; Wimo, Anders; Winblad, Bengt; +5 more... Rosengren, Lars; Schott, Jonathan M; Blennow, Kaj; Eriksdotter, Maria; Zetterberg, Henrik; (2014) CSF neurofilament light differs in neurodegenerative diseases and predicts severity and survival. Neurology, 83 (21). pp. 1945-1953. ISSN 0028-3878 DOI: https://doi.org/10.1212/WNL.0000000000001015 Full text not available from this repository.

Welch, Catherine A; Petersen, Irene; Bartlett, Jonathan W; White, Ian R; Marston, Louise; Morris, Richard W; Nazareth, Irwin; Walters, Kate; Carpenter, James; (2014) Evaluation of two-fold fully conditional specification multiple imputation for longitudinal electronic health record data. Statistics in medicine, 33 (21). pp. 3725-3737. ISSN 0277-6715 DOI: https://doi.org/10.1002/sim.6184
[img]

Welch, Catherine; Bartlett, Jonathan; Petersen, Irene; (2014) Application of multiple imputation using the two-fold fully conditional specification algorithm in longitudinal clinical data. The Stata journal, 14 (2). pp. 418-431. ISSN 1536-867X DOI: https://doi.org/10.1177/1536867x1401400213 Full text not available from this repository.

2013

Barnes, Josephine; Bartlett, Jonathan W; Fox, Nick C; Schott, Jonathan M; (2013) Targeted recruitment using cerebrospinal fluid biomarkers: implications for Alzheimer's disease therapeutic trials. Journal of Alzheimer's disease, 34 (2). pp. 431-437. ISSN 1387-2877 DOI: https://doi.org/10.3233/JAD-121936 Full text not available from this repository.

Barnes, Josephine; Carmichael, Owen T; Leung, Kelvin K; Schwarz, Christopher; Ridgway, Gerard R; Bartlett, Jonathan W; Malone, Ian B; Schott, Jonathan M; Rossor, Martin N; Biessels, Geert Jan; +3 more... DeCarli, Charlie; Fox, Nick C; Alzheimer's Disease Neuroimaging Initiative; (2013) Vascular and Alzheimer's disease markers independently predict brain atrophy rate in Alzheimer's Disease Neuroimaging Initiative controls. Neurobiology of aging, 34 (8). pp. 1996-2002. ISSN 0197-4580 DOI: https://doi.org/10.1016/j.neurobiolaging.2013.02.003
[img]

Khanolkar, Amal R; Sovio, Ulla; Bartlett, Jonathan W; Wallby, Thomas; Koupil, Ilona; (2013) Socioeconomic and early-life factors and risk of being overweight or obese in children of Swedish- and foreign-born parents. Pediatric research, 74 (3). pp. 356-363. ISSN 0031-3998 DOI: https://doi.org/10.1038/pr.2013.108 Full text not available from this repository.

Lehmann, Manja; Koedam, Esther L; Barnes, Josephine; Bartlett, Jonathan W; Barkhof, Frederik; Wattjes, Mike P; Schott, Jonathan M; Scheltens, Philip; Fox, Nick C; Alzheimer's Disease Neuroimaging Initiative; (2013) Visual ratings of atrophy in MCI: prediction of conversion and relationship with CSF biomarkers. Neurobiology of aging, 34 (1). pp. 73-82. ISSN 0197-4580 DOI: https://doi.org/10.1016/j.neurobiolaging.2012.03.010 Full text not available from this repository.

Leung, Kelvin K; Bartlett, Jonathan W; Barnes, Josephine; Manning, Emily N; Ourselin, Sebastien; Fox, Nick C; Alzheimer's Disease Neuroimaging Initiative; (2013) Cerebral atrophy in mild cognitive impairment and Alzheimer disease: rates and acceleration. Neurology, 80 (7). pp. 648-654. ISSN 0028-3878 DOI: https://doi.org/10.1212/WNL.0b013e318281ccd3 Full text not available from this repository.

Scahill, Rachael I; Ridgway, Gerard R; Bartlett, Jonathan W; Barnes, Josephine; Ryan, Natalie S; Mead, Simon; Beck, Jonathan; Clarkson, Matthew J; Crutch, Sebastian J; Schott, Jonathan M; +5 more... Ourselin, Sebastien; Warren, Jason D; Hardy, John; Rossor, Martin N; Fox, Nick C; (2013) Genetic influences on atrophy patterns in familial Alzheimer's disease: a comparison of APP and PSEN1 mutations. Journal of Alzheimer's disease, 35 (1). pp. 199-212. ISSN 1387-2877 DOI: https://doi.org/10.3233/JAD-121255 Full text not available from this repository.

2012

Anderson, Valerie M; Schott, Jonathan M; Bartlett, Jonathan W; Leung, Kelvin K; Miller, David H; Fox, Nick C; (2012) Gray matter atrophy rate as a marker of disease progression in AD. Neurobiology of aging, 33 (7). pp. 1194-1202. ISSN 0197-4580 DOI: https://doi.org/10.1016/j.neurobiolaging.2010.11.001
[img]

Bartlett, Jonathan W; Frost, Chris; Mattsson, Niklas; Skillbäck, Tobias; Blennow, Kaj; Zetterberg, Henrik; Schott, Jonathan M; (2012) Determining cut-points for Alzheimer's disease biomarkers: statistical issues, methods and challenges. Biomarkers in medicine, 6 (4). pp. 391-400. ISSN 1752-0363 DOI: https://doi.org/10.2217/bmm.12.49
[img]

Hailstone, Julia C; Ridgway, Gerard R; Bartlett, Jonathan W; Goll, Johanna C; Crutch, Sebastian J; Warren, Jason D; (2012) Accent processing in dementia. Neuropsychologia, 50 (9). pp. 2233-2244. ISSN 0028-3932 DOI: https://doi.org/10.1016/j.neuropsychologia.2012.05.027
[img]

Macdonald, Kate E; Bartlett, Jonathan W; Leung, Kelvin K; Ourselin, Sebastien; Barnes, Josephine; ADNI investigators; (2012) The value of hippocampal and temporal horn volumes and rates of change in predicting future conversion to AD. Alzheimer disease and associated disorders, 27 (2). pp. 168-173. ISSN 0893-0341 DOI: https://doi.org/10.1097/WAD.0b013e318260a79a
[img]

Ridge, Katie; Bartlett, Jonathan; Cheah, Yee; Thomas, Stephen; Lawrence-Smith, Geoffrey; Winkley, Kirsty; Ismail, Khalida; (2012) Do the effects of psychological treatments on improving glycemic control in type 1 diabetes persist over time? A long-term follow-up of a randomized controlled trial. Psychosomatic medicine, 74 (3). pp. 319-323. ISSN 0033-3174 DOI: https://doi.org/10.1097/PSY.0b013e31824c181b Full text not available from this repository.

Schott, Jonathan M; Bartlett, Jonathan W; (2012) Investigating missing data in Alzheimer disease studies. Neurology, 78 (18). pp. 1370-1371. ISSN 0028-3878 DOI: https://doi.org/10.1212/WNL.0b013e318253d66b Full text not available from this repository.

2011

Bartlett, Jonathan W; Frost, Chris; Carpenter, James R; (2011) Multiple imputation models should incorporate the outcome in the model of interest. Brain, 134 (Pt 11). e189-. ISSN 0006-8950 DOI: https://doi.org/10.1093/brain/awr061 Full text not available from this repository.

Carpenter, J; Petersen, I; Welch, C; Bartlett, Jonathan; Walters, K; Morris, R; White, I; Marston, L; Nazareth, I; (2011) Multiple Imputation for Missing Data in Electronic Health Databases: Practical Issues and Some Solutions. [Conference or Workshop Item] https://researchonline.lshtm.ac.uk/id/eprint/4 Full text not available from this repository.

Hailstone, Julia C; Ridgway, Gerard R; Bartlett, Jonathan W; Goll, Johanna C; Buckley, Aisling H; Crutch, Sebastian J; Warren, Jason D; (2011) Voice processing in dementia: a neuropsychological and neuroanatomical analysis. Brain, 134 (Pt 9). pp. 2535-2547. ISSN 0006-8950 DOI: https://doi.org/10.1093/brain/awr205
[img]

Leung, Kelvin K; Barnes, Josephine; Modat, Marc; Ridgway, Gerard R; Bartlett, Jonathan W; Fox, Nick C; Ourselin, Sébastien; Alzheimer's Disease Neuroimaging Initiative; (2011) Brain MAPS: an automated, accurate and robust brain extraction technique using a template library. NeuroImage, 55 (3). pp. 1091-1108. ISSN 1053-8119 DOI: https://doi.org/10.1016/j.neuroimage.2010.12.067 Full text not available from this repository.

Omar, Rohani; Henley, Susie MD; Bartlett, Jonathan W; Hailstone, Julia C; Gordon, Elizabeth; Sauter, Disa A; Frost, Chris; Scott, Sophie K; Warren, Jason D; (2011) The structural neuroanatomy of music emotion recognition: evidence from frontotemporal lobar degeneration. NeuroImage, 56 (3). pp. 1814-1821. ISSN 1053-8119 DOI: https://doi.org/10.1016/j.neuroimage.2011.03.002
[img]

2010

Barnes, Josephine; Ridgway, Gerard R; Bartlett, Jonathan; Henley, Susie MD; Lehmann, Manja; Hobbs, Nicola; Clarkson, Matthew J; MacManus, David G; Ourselin, Sebastien; Fox, Nick C; (2010) Head size, age and gender adjustment in MRI studies: a necessary nuisance? NeuroImage, 53 (4). pp. 1244-1255. ISSN 1053-8119 DOI: https://doi.org/10.1016/j.neuroimage.2010.06.025 Full text not available from this repository.

Ismail, K; Maissi, E; Thomas, S; Chalder, T; Schmidt, U; Bartlett, J; Patel, A; Dickens, C; Creed, F; Treasure, J; (2010) A randomised controlled trial of cognitive behaviour therapy and motivational interviewing for people with Type 1 diabetes mellitus with persistent sub-optimal glycaemic control: a Diabetes and Psychological Therapies (ADaPT) study. Health technology assessment (Winchester, England), 14 (22). 1-iv. ISSN 1366-5278 DOI: https://doi.org/10.3310/hta14220
[img]

Leung, Kelvin K; Barnes, Josephine; Ridgway, Gerard R; Bartlett, Jonathan W; Clarkson, Matthew J; Macdonald, Kate; Schuff, Norbert; Fox, Nick C; Ourselin, Sebastien; Alzheimer's Disease Neuroimaging Initiative; (2010) Automated cross-sectional and longitudinal hippocampal volume measurement in mild cognitive impairment and Alzheimer's disease. NeuroImage, 51 (4). pp. 1345-1359. ISSN 1053-8119 DOI: https://doi.org/10.1016/j.neuroimage.2010.03.018
[img]

Leung, Kelvin K; Clarkson, Matthew J; Bartlett, Jonathan W; Clegg, Shona; Jack, Clifford R; Weiner, Michael W; Fox, Nick C; Ourselin, Sébastien; Alzheimer's Disease Neuroimaging Initiative; (2010) Robust atrophy rate measurement in Alzheimer's disease using multi-site serial MRI: tissue-specific intensity normalization and parameter selection. NeuroImage, 50 (2). pp. 516-523. ISSN 1053-8119 DOI: https://doi.org/10.1016/j.neuroimage.2009.12.059 Full text not available from this repository.

Schott, JM; Bartlett, JW; Barnes, J; Leung, KK; Ourselin, S; Fox, NC; Alzheimer's Disease Neuroimaging Initiative investigators; (2010) Reduced sample sizes for atrophy outcomes in Alzheimer's disease trials: baseline adjustment. Neurobiology of aging, 31 (8). 1452-1462.e2. ISSN 0197-4580 DOI: https://doi.org/10.1016/j.neurobiolaging.2010.04.011 Full text not available from this repository.

Schott, Jonathan M; Bartlett, Jonathan W; Fox, Nick C; Barnes, Josephine; Alzheimer's Disease Neuroimaging Initiative Investigators; (2010) Increased brain atrophy rates in cognitively normal older adults with low cerebrospinal fluid Aβ1-42. Annals of neurology, 68 (6). pp. 825-834. ISSN 0364-5134 DOI: https://doi.org/10.1002/ana.22315 Full text not available from this repository.

2009

Barnes, Josephine; Bartlett, Jonathan W; van de Pol, Laura A; Loy, Clement T; Scahill, Rachael I; Frost, Chris; Thompson, Paul; Fox, Nick C; (2009) A meta-analysis of hippocampal atrophy rates in Alzheimer's disease. Neurobiology of aging, 30 (11). pp. 1711-1723. ISSN 0197-4580 DOI: https://doi.org/10.1016/j.neurobiolaging.2008.01.010 Full text not available from this repository.

Bartlett, Jonathan W; De Stavola, Bianca L; Frost, Chris; (2009) Linear mixed models for replication data to efficiently allow for covariate measurement error. Statistics in medicine, 28 (25). pp. 3158-3178. ISSN 0277-6715 DOI: https://doi.org/10.1002/sim.3713 Full text not available from this repository.

2008

Bartlett, JW; De Stavola, BL; Meade, TW; (2008) Assessing the contribution of fibrinogen in predicting risk of death in men with peripheral arterial disease. Journal of thrombosis and haemostasis, 7 (2). pp. 270-276. ISSN 1538-7933 DOI: https://doi.org/10.1111/j.1538-7836.2008.03236.x Full text not available from this repository.

Bartlett, JW; Frost, C; (2008) Reliability, repeatability and reproducibility: analysis of measurement errors in continuous variables. Ultrasound in obstetrics & gynecology, 31 (4). pp. 466-475. ISSN 0960-7692 DOI: https://doi.org/10.1002/uog.5256 Full text not available from this repository.

Bartlett, Jonathan; De Stavola, Bianca; White, Ian; Frost, Chris; (2008) Re: "Effects of past and recent blood pressure and cholesterol level on coronary heart disease and stroke mortality, accounting for measurement error". American journal of epidemiology, 167 (4). pp. 502-503. ISSN 0002-9262 DOI: https://doi.org/10.1093/aje/kwm387 Full text not available from this repository.

Ismail, Khalida; Thomas, Stephen M; Maissi, Esther; Chalder, Trudie; Schmidt, Ulrike; Bartlett, Jonathan; Patel, Anita; Dickens, Christopher M; Creed, Francis; Treasure, Janet; (2008) Motivational enhancement therapy with and without cognitive behavior therapy to treat type 1 diabetes: a randomized trial. Annals of internal medicine, 149 (10). pp. 708-719. ISSN 0003-4819 DOI: https://doi.org/10.7326/0003-4819-149-10-200811180-00005 Full text not available from this repository.

2007

Anderson, Valerie M; Bartlett, Jonathan W; Fox, Nick C; Fisniku, Leonora; Miller, David H; (2007) Detecting treatment effects on brain atrophy in relapsing remitting multiple sclerosis: sample size estimates. Journal of neurology, 254 (11). pp. 1588-1594. ISSN 0340-5354 DOI: https://doi.org/10.1007/s00415-007-0599-3 Full text not available from this repository.

Barnes, Josephine; Lewis, Emma B; Scahill, Rachael I; Bartlett, Jonathan W; Frost, Chris; Schott, Jonathan M; Rossor, Martin N; Fox, Nick C; (2007) Automated measurement of hippocampal atrophy using fluid-registered serial MRI in AD and controls. Journal of computer assisted tomography, 31 (4). pp. 581-587. ISSN 0363-8715 DOI: https://doi.org/10.1097/rct.0b013e31802f4139 Full text not available from this repository.

Ismail, K; Thomas, SM; Chalder, T; Dickens, C; Creed, E; Maissi, E; Bartlett, Jonathan; Schmidt, U; Patel, A; Treasure, J; (2007) A diabetes and psychological treatments study (ADaPT): Preliminary results from a randomised controlled trial. [Conference or Workshop Item] https://researchonline.lshtm.ac.uk/id/eprint/8566 Full text not available from this repository.

2006

Anderson, VM; Bartlett, Jonathan; Fisniku, L; Davies, GR; Rashid, W; Fox, NC; Miller, DH; (2006) Sample size estimates based on hierarchical regression models of atrophy rates in relapsing-remitting multiple sclerosis. [Conference or Workshop Item] https://researchonline.lshtm.ac.uk/id/eprint/9699 Full text not available from this repository.

Ridha, Basil H; Barnes, Josephine; Bartlett, Jonathan W; Godbolt, Alison; Pepple, Tracey; Rossor, Martin N; Fox, Nick C; (2006) Tracking atrophy progression in familial Alzheimer's disease: a serial MRI study. Lancet neurology, 5 (10). pp. 828-834. ISSN 1474-4422 DOI: https://doi.org/10.1016/S1474-4422(06)70550-6 Full text not available from this repository.

Shah, SP; Bartlett, JW; Frost, C; (2006) Highlighting the methodology. Eye (London, England), 21 (1). pp. 126-127. ISSN 0950-222X DOI: https://doi.org/10.1038/sj.eye.6702439 Full text not available from this repository.

This list was generated on Wed Mar 27 06:49:17 2024 GMT.