Items where Author is "Bartlett, Jonathan"

Number of items: 77.
Article
  • Detecting treatment effects on brain atrophy in relapsing remitting multiple sclerosis: sample size estimates. (2007) Anderson, Valerie M; Bartlett, Jonathan W; Fox, Nick C; Fisniku, Leonora; Miller, David H
  • Gray matter atrophy rate as a marker of disease progression in AD. (2012) Anderson, Valerie M; Schott, Jonathan M; Bartlett, Jonathan W; Leung, Kelvin K; Miller, David H; Fox, Nick C
  • Targeted recruitment using cerebrospinal fluid biomarkers: implications for Alzheimer's disease therapeutic trials. (2013) Barnes, Josephine; Bartlett, Jonathan W; Fox, Nick C; Schott, Jonathan M
  • Disease Course Varies According to Age and Symptom Length in Alzheimer's Disease. (2018) Barnes, Josephine; Bartlett, Jonathan W; Wolk, David A; van der Flier, Wiesje M; Frost, Chris
  • A meta-analysis of hippocampal atrophy rates in Alzheimer's disease. (2009) Barnes, Josephine; Bartlett, Jonathan W; van de Pol, Laura A; Loy, Clement T; Scahill, Rachael I; Frost, Chris; Thompson, Paul; Fox, Nick C
  • Vascular and Alzheimer's disease markers independently predict brain atrophy rate in Alzheimer's Disease Neuroimaging Initiative controls. (2013) 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; DeCarli, Charlie; Fox, Nick C; Alzheimer's Disease Neuroimaging Initiative
  • Automated measurement of hippocampal atrophy using fluid-registered serial MRI in AD and controls. (2007) Barnes, Josephine; Lewis, Emma B; Scahill, Rachael I; Bartlett, Jonathan W; Frost, Chris; Schott, Jonathan M; Rossor, Martin N; Fox, Nick C
  • Head size, age and gender adjustment in MRI studies: a necessary nuisance? (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
  • Assessing the contribution of fibrinogen in predicting risk of death in men with peripheral arterial disease. (2008) Bartlett, JW; De Stavola, BL; Meade, TW
  • Reliability, repeatability and reproducibility: analysis of measurement errors in continuous variables. (2008) Bartlett, JW; Frost, C
  • Robustness of ANCOVA in randomized trials with unequal randomization. (2019) Bartlett, Jonathan W
  • Reference-Based Multiple Imputation—What is the Right Variance and How to Estimate It. (2021) Bartlett, Jonathan W
  • Improving upon the efficiency of complete case analysis when covariates are MNAR. (2014) Bartlett, Jonathan W; Carpenter, James R; Tilling, Kate; Vansteelandt, Stijn
  • Corrigendum: Improving upon the efficiency of complete case analysis when covariates are MNAR (10.1093/biostatistics/kxu023). (2015) Bartlett, Jonathan W; Carpenter, James R; Tilling, Kate; Vansteelandt, Stijn
  • Linear mixed models for replication data to efficiently allow for covariate measurement error. (2009) Bartlett, Jonathan W; De Stavola, Bianca L; Frost, Chris
  • Multiple imputation models should incorporate the outcome in the model of interest. (2011) Bartlett, Jonathan W; Frost, Chris; Carpenter, James R
  • Determining cut-points for Alzheimer's disease biomarkers: statistical issues, methods and challenges. (2012) Bartlett, Jonathan W; Frost, Chris; Mattsson, Niklas; Skillbäck, Tobias; Blennow, Kaj; Zetterberg, Henrik; Schott, Jonathan M
  • The Authors Reply. (2016) Bartlett, Jonathan W; Harel, Ofer; Carpenter, James R
  • Asymptotically Unbiased Estimation of Exposure Odds Ratios in Complete Records Logistic Regression. (2015) Bartlett, Jonathan W; Harel, Ofer; Carpenter, James R
  • Bootstrap inference for multiple imputation under uncongeniality and misspecification. (2020) Bartlett, Jonathan W; Hughes, Rachael A
  • Bayesian correction for covariate measurement error: A frequentist evaluation and comparison with regression calibration. (2016) Bartlett, Jonathan W; Keogh, Ruth H
  • The Hazards of Period Specific and Weighted Hazard Ratios. (2020) Bartlett, Jonathan W; Morris, Tim P; Stensrud, Mats J; Daniel, Rhian M; Vansteelandt, Stijn K; Burman, Carl-Fredrik
  • G-formula with multiple imputation for causal inference with incomplete data. (2025) Bartlett, Jonathan W; Olarte Parra, Camila; Granger, Emily; Keogh, Ruth H; van Zwet, Erik W; Daniel, Rhian M
  • Multiple imputation of covariates by fully conditional specification: Accommodating the substantive model. (2014) Bartlett, Jonathan W; Seaman, Shaun R; White, Ian R; Carpenter, James R; Alzheimer's Disease Neuroimaging Initiative*
  • Missing covariates in competing risks analysis. (2016) Bartlett, Jonathan W; Taylor, Jeremy MG
  • Re: "Effects of past and recent blood pressure and cholesterol level on coronary heart disease and stroke mortality, accounting for measurement error". (2008) Bartlett, Jonathan; De Stavola, Bianca; White, Ian; Frost, Chris
  • Comparative effectiveness of second line oral antidiabetic treatments among people with type 2 diabetes mellitus: emulation of a target trial using routinely collected health data. (2024) Bidulka, Patrick; Lugo-Palacios, David G; Carroll, Orlagh; O'Neill, Stephen; Adler, Amanda I; Basu, Anirban; Silverwood, Richard J; Bartlett, Jonathan W; Nitsch, Dorothea; Charlton, Paul; Briggs, Andrew H; Smeeth, Liam; Douglas, Ian J; Khunti, Kamlesh; Grieve, Richard
  • Multiple Imputation of Missing Covariates When Using the Fine-Gray Model. (2025) Bonneville, Edouard F; Beyersmann, Jan; Keogh, Ruth H; Bartlett, Jonathan W; Morris, Tim P; Polverelli, Nicola; de Wreede, Liesbeth C; Putter, Hein
  • Complete case logistic regression with a dichotomised continuous outcome led to biased estimates. (2023) Cornish, Rosaleen Peggy; Bartlett, Jonathan William; Macleod, John; Tilling, Kate
  • The Estimand Framework and Causal Inference: Complementary Not Competing Paradigms. (2025) Drury, Thomas; Bartlett, Jonathan W; Wright, David; Keene, Oliver N
  • They built this city-construction workers injured in Delhi, India: cross-sectional analysis of First Information Reports of the Delhi Police 2016-2018. (2022) Edwards, Phil; Yadav, Sajjan; Bartlett, Jonathan; Porter, John
  • Multiple imputation of partially observed covariates in discrete-time survival analysis. (2022) Haensch, Anna-Carolina; Bartlett, Jonathan; Weiß, Bernd
  • Voice processing in dementia: a neuropsychological and neuroanatomical analysis. (2011) Hailstone, Julia C; Ridgway, Gerard R; Bartlett, Jonathan W; Goll, Johanna C; Buckley, Aisling H; Crutch, Sebastian J; Warren, Jason D
  • Accent processing in dementia. (2012) Hailstone, Julia C; Ridgway, Gerard R; Bartlett, Jonathan W; Goll, Johanna C; Crutch, Sebastian J; Warren, Jason D
  • Missing binary outcomes under covariate-dependent missingness in cluster randomised trials. (2017) Hossain, Anower; DiazOrdaz, Karla; Bartlett, Jonathan W
  • 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. (2010) Ismail, K; Maissi, E; Thomas, S; Chalder, T; Schmidt, U; Bartlett, J; Patel, A; Dickens, C; Creed, F; Treasure, J
  • Motivational enhancement therapy with and without cognitive behavior therapy to treat type 1 diabetes: a randomized trial. (2008) Ismail, Khalida; Thomas, Stephen M; Maissi, Esther; Chalder, Trudie; Schmidt, Ulrike; Bartlett, Jonathan; Patel, Anita; Dickens, Christopher M; Creed, Francis; Treasure, Janet
  • Socioeconomic and early-life factors and risk of being overweight or obese in children of Swedish- and foreign-born parents. (2013) Khanolkar, Amal R; Sovio, Ulla; Bartlett, Jonathan W; Wallby, Thomas; Koupil, Ilona
  • Visual ratings of atrophy in MCI: prediction of conversion and relationship with CSF biomarkers. (2013) 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
  • Brain MAPS: an automated, accurate and robust brain extraction technique using a template library. (2011) Leung, Kelvin K; Barnes, Josephine; Modat, Marc; Ridgway, Gerard R; Bartlett, Jonathan W; Fox, Nick C; Ourselin, Sébastien; Alzheimer's Disease Neuroimaging Initiative
  • Automated cross-sectional and longitudinal hippocampal volume measurement in mild cognitive impairment and Alzheimer's disease. (2010) 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
  • Cerebral atrophy in mild cognitive impairment and Alzheimer disease: rates and acceleration. (2013) Leung, Kelvin K; Bartlett, Jonathan W; Barnes, Josephine; Manning, Emily N; Ourselin, Sebastien; Fox, Nick C; Alzheimer's Disease Neuroimaging Initiative
  • Robust atrophy rate measurement in Alzheimer's disease using multi-site serial MRI: tissue-specific intensity normalization and parameter selection. (2010) 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
  • The value of hippocampal and temporal horn volumes and rates of change in predicting future conversion to AD. (2012) Macdonald, Kate E; Bartlett, Jonathan W; Leung, Kelvin K; Ourselin, Sebastien; Barnes, Josephine; ADNI investigators
  • Automated template-based hippocampal segmentations from MRI: the effects of 1.5T or 3T field strength on accuracy. (2014) 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
  • APOE ε4 is associated with disproportionate progressive hippocampal atrophy in AD. (2014) Manning, Emily N; Barnes, Josephine; Cash, David M; Bartlett, Jonathan W; Leung, Kelvin K; Ourselin, Sebastien; Fox, Nick C; Alzheimer's Disease NeuroImaging Initiative
  • Comparison of the within-reader and inter-vendor agreement of left ventricular circumferential strains and volume indices derived from cardiovascular magnetic resonance imaging. (2020) Mansell, Doyin S; Frank, Evelyn G; Kelly, Nathaniel S; Agostinho-Hernandez, Bruno; Fletcher, James; Bruno, Vito D; Sammut, Eva; Chiribiri, Amedeo; Johnson, Thomas; Ascione, Raimondo; Bartlett, Jonathan W; Gill, Harinderjit S; Fraser, Katharine H; Cookson, Andrew N picture_as_pdf
  • Hypothetical Estimands in Clinical Trials: A Unification of Causal Inference and Missing Data Methods. (2022) Olarte Parra, Camila; Daniel, Rhian M; Bartlett, Jonathan W
  • Estimating hypothetical estimands with causal inference and missing data estimators in a diabetes trial case study. (2025) Olarte Parra, Camila; Daniel, Rhian M; Wright, David; Bartlett, Jonathan W
  • The structural neuroanatomy of music emotion recognition: evidence from frontotemporal lobar degeneration. (2011) Omar, Rohani; Henley, Susie MD; Bartlett, Jonathan W; Hailstone, Julia C; Gordon, Elizabeth; Sauter, Disa A; Frost, Chris; Scott, Sophie K; Warren, Jason D
  • Cerebrospinal fluid markers including trefoil factor 3 are associated with neurodegeneration in amyloid-positive individuals. (2014) Paterson, RW; Bartlett, JW; Blennow, K; Fox, NC; Alzheimer's Disease Neuroimaging Initiative; Shaw, LM; Trojanowski, JQ; Zetterberg, H; Schott, JM
  • Recalibrating SARS-CoV-2 Antigen Rapid Lateral Flow Test Relative Sensitivity from Validation Studies to Absolute Sensitivity for Indicating Individuals Shedding Transmissible Virus. (2021) Petersen, Irene; Crozier, Alexander; Buchan, Iain; Mina, Michael J; Bartlett, Jonathan W
  • 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. (2012) Ridge, Katie; Bartlett, Jonathan; Cheah, Yee; Thomas, Stephen; Lawrence-Smith, Geoffrey; Winkley, Kirsty; Ismail, Khalida
  • Tracking atrophy progression in familial Alzheimer's disease: a serial MRI study. (2006) Ridha, Basil H; Barnes, Josephine; Bartlett, Jonathan W; Godbolt, Alison; Pepple, Tracey; Rossor, Martin N; Fox, Nick C
  • Growth of HIV-exposed uninfected, compared with HIV-unexposed, Zambian children: a longitudinal analysis from infancy to school age. (2017) Rosala-Hallas, Anna; Bartlett, Jonathan W; Filteau, Suzanne
  • Genetic influences on atrophy patterns in familial Alzheimer's disease: a comparison of APP and PSEN1 mutations. (2013) 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; Ourselin, Sebastien; Warren, Jason D; Hardy, John; Rossor, Martin N; Fox, Nick C
  • Reduced sample sizes for atrophy outcomes in Alzheimer's disease trials: baseline adjustment. (2010) Schott, JM; Bartlett, JW; Barnes, J; Leung, KK; Ourselin, S; Fox, NC; Alzheimer's Disease Neuroimaging Initiative investigators
  • Investigating missing data in Alzheimer disease studies. (2012) Schott, Jonathan M; Bartlett, Jonathan W
  • Increased brain atrophy rates in cognitively normal older adults with low cerebrospinal fluid Aβ1-42. (2010) Schott, Jonathan M; Bartlett, Jonathan W; Fox, Nick C; Barnes, Josephine; Alzheimer's Disease Neuroimaging Initiative Investigators
  • Multiple imputation of missing covariates with non-linear effects and interactions: an evaluation of statistical methods. (2012) Seaman, Shaun R; Bartlett, Jonathan W; White, Ian R
  • Comparison of random forest and parametric imputation models for imputing missing data using MICE: a CALIBER study. (2014) Shah, Anoop D; Bartlett, Jonathan W; Carpenter, James; Nicholas, Owen; Hemingway, Harry
  • Highlighting the methodology. (2006) Shah, SP; Bartlett, JW; Frost, C
  • CSF neurofilament light differs in neurodegenerative diseases and predicts severity and survival. (2014) Skillbäck, Tobias; Farahmand, Bahman; Bartlett, Jonathan W; Rosén, Christoffer; Mattsson, Niklas; Nägga, Katarina; Kilander, Lena; Religa, Dorota; Wimo, Anders; Winblad, Bengt; Rosengren, Lars; Schott, Jonathan M; Blennow, Kaj; Eriksdotter, Maria; Zetterberg, Henrik
  • Infection and telomere length: a systematic review protocol. (2024) Tunnicliffe, Louis; Muzambi, Rutendo; Bartlett, Jonathan W; Howe, Laura; Abdul Basit, Khalid; Warren-Gash, Charlotte
  • 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. (2022) Van Lancker, Kelly; Tarima, Sergey; Bartlett, Jonathan; Bauer, Madeline; Bharani-Dharan, Bharani; Bretz, Frank; Flournoy, Nancy; Michiels, Hege; Olarte Parra, Camila; Rosenberger, James L; Cro, Suzie
  • Evaluation of two-fold fully conditional specification multiple imputation for longitudinal electronic health record data. (2014) Welch, Catherine A; Petersen, Irene; Bartlett, Jonathan W; White, Ian R; Marston, Louise; Morris, Richard W; Nazareth, Irwin; Walters, Kate; Carpenter, James
  • Application of multiple imputation using the two-fold fully conditional specification algorithm in longitudinal clinical data. (2014) Welch, Catherine; Bartlett, Jonathan; Petersen, Irene
  • Standard and reference-based conditional mean imputation. (2022) Wolbers, Marcel; Noci, Alessandro; Delmar, Paul; Gower-Page, Craig; Yiu, Sean; Bartlett, Jonathan W
  • Quantitative bias analysis for mismeasured variables in health research: a review of software tools. (2025) Wood, Codie JC; Tilling, Kate; Bartlett, Jonathan W; Hughes, Rachael A
  • Analyzing Coarsened and Missing Data by Imputation Methods. (2025) van der Burg, Lars LJ; Böhringer, Stefan; Bartlett, Jonathan W; Bosse, Tjalling; Horeweg, Nanda; de Wreede, Liesbeth C; Putter, Hein picture_as_pdf
  • Maximum Likelihood Multiple Imputation: Faster Imputations and Consistent Standard Errors Without Posterior Draws. (2021) von Hippel, Paul T; Bartlett, Jonathan W
    • Conference or Workshop Item
  • Sample size estimates based on hierarchical regression models of atrophy rates in relapsing-remitting multiple sclerosis. (2006) Anderson, VM; Bartlett, Jonathan; Fisniku, L; Davies, GR; Rashid, W; Fox, NC; Miller, DH
  • Multiple Imputation for Missing Data in Electronic Health Databases: Practical Issues and Some Solutions. (2011) Carpenter, J; Petersen, I; Welch, C; Bartlett, Jonathan; Walters, K; Morris, R; White, I; Marston, L; Nazareth, I
  • A diabetes and psychological treatments study (ADaPT): Preliminary results from a randomised controlled trial. (2007) Ismail, K; Thomas, SM; Chalder, T; Dickens, C; Creed, E; Maissi, E; Bartlett, Jonathan; Schmidt, U; Patel, A; Treasure, J
  • AAIC abstract: Impact of baseline adjustment for vascular risk factors on sample size for atrophy outcomes in Alzheimer's disease clinical trials. (2014) Nicholas, J; Meade, T; Fiford, C; Manning, EN; Carmichael, O; Biessels, GJ; Bartlett, Jonathan; Fox, NC; Frost, C; Barnes, J
    • Thesis
  • Missing Data in Cluster Randomised Trials. (2017) Hossain, A
    • Other
  • Epidemiology of construction site injuries in Delhi, India: protocol for a retrospective cohort study. (2020) Yadav, Sajjan S; Edwards, Phil; Bartlett, Jonathan; Porter, John