Items where Author is "Bartlett, J"
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Number of items: 52.
2018
Barnes, J;
Bartlett, JW;
Wolk, DA;
van der Flier, WM;
Frost, C;
(2018)
Disease Course Varies According to Age and Symptom Length in Alzheimer's Disease.
Journal of Alzheimer's disease.
ISSN 1387-2877
DOI: https://doi.org/10.3233/JAD-170841
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
Hossain, A;
DiazOrdaz, K;
Bartlett, JW;
(2017)
Missing binary outcomes under covariate-dependent missingness in cluster randomised trials.
Statistics in medicine.
ISSN 0277-6715
DOI: https://doi.org/10.1002/sim.7334
2016
Bartlett, JW;
Keogh, RH;
(2016)
Bayesian correction for covariate measurement error: A frequentist evaluation and comparison with regression calibration.
Statistical methods in medical research.
ISSN 0962-2802
DOI: https://doi.org/10.1177/0962280216667764
Bartlett, JW;
Taylor, JM;
(2016)
Missing covariates in competing risks analysis.
Biostatistics (Oxford, England).
ISSN 1465-4644
DOI: https://doi.org/10.1093/biostatistics/kxw019
2015
Bartlett, JW;
Carpenter, JR;
Tilling, K;
Vansteelandt, S;
(2015)
Corrigendum: Improving upon the efficiency of complete case analysis when covariates are MNAR (10.1093/biostatistics/kxu023).
Biostatistics (Oxford, England), 16 (1).
p. 205.
ISSN 1465-4644
DOI: https://doi.org/10.1093/biostatistics/kxu051
Bartlett, JW;
Harel, O;
Carpenter, JR;
(2015)
Asymptotically unbiased estimation of exposure odds ratios in complete records logistic regression.
American journal of epidemiology, 182 (8).
pp. 730-6.
ISSN 0002-9262
DOI: https://doi.org/10.1093/aje/kwv114
2014
Bartlett, JW;
Carpenter, JR;
Tilling, K;
Vansteelandt, S;
(2014)
Improving upon the efficiency of complete case analysis when covariates are MNAR.
Biostatistics (Oxford, England), 15 (4).
pp. 719-30.
ISSN 1465-4644
DOI: https://doi.org/10.1093/biostatistics/kxu023
Bartlett, JW;
Seaman, SR;
White, IR;
Carpenter, JR;
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. 462-87.
ISSN 0962-2802
DOI: https://doi.org/10.1177/0962280214521348
Macdonald, KE;
Leung, KK;
Bartlett, JW;
Blair, M;
Malone, IB;
Barnes, J;
Ourselin, S;
Fox, NC;
for the 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.
ISSN 1539-2791
DOI: https://doi.org/10.1007/s12021-013-9217-y
Manning, EN;
Barnes, J;
Cash, DM;
Bartlett, JW;
Leung, KK;
Ourselin, S;
Nick C. Fox1 for the 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
Nicholas, J;
Meade, T;
Fiford, C;
Manning, EN;
Carmichael, O;
Biessels, GJ;
Bartlett, JW;
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]
http://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.
e419.
ISSN 2158-3188
DOI: https://doi.org/10.1038/tp.2014.58
Shah, AD;
Bartlett, JW;
Carpenter, J;
Nicholas, O;
Hemingway, H;
(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. 764-74.
ISSN 0002-9262
DOI: https://doi.org/10.1093/aje/kwt312
Skillbäck, T;
Farahmand, B;
Bartlett, JW;
Rosén, C;
Mattsson, N;
Nägga, K;
Kilander, L;
Religa, D;
Wimo, A;
Winblad, B;
+5 more...
Rosengren, L;
Schott, JM;
Blennow, K;
Eriksdotter, M;
Zetterberg, H;
(2014)
CSF neurofilament light differs in neurodegenerative diseases and predicts severity and survival.
Neurology.
ISSN 0028-3878
DOI: https://doi.org/10.1212/WNL.0000000000001015
Full text not available from this repository.
Welch, C;
Bartlett, J;
Petersen, I;
(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
http://researchonline.lshtm.ac.uk/id/eprint/2030950
Full text not available from this repository.
Welch, CA;
Petersen, I;
Bartlett, JW;
White, IR;
Marston, L;
Morris, RW;
Nazareth, I;
Walters, K;
Carpenter, J;
(2014)
Evaluation of two-fold fully conditional specification multiple imputation for longitudinal electronic health record data.
Statistics in medicine, 33 (21).
pp. 3725-37.
ISSN 0277-6715
DOI: https://doi.org/10.1002/sim.6184
Full text not available from this repository.
2013
Barnes, J;
Bartlett, JW;
Fox, NC;
Schott, JM;
Alzheimer's Dis Neuroimaging, Initi;
(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, J;
Carmichael, OT;
Leung, KK;
Schwarz, C;
Ridgway, GR;
Bartlett, JW;
Malone, IB;
Schott, JM;
Rossor, MN;
Biessels, GJ;
+3 more...
Decarli, C;
Fox, NC;
Alzheimer's Dis Neuroimaging, Initi;
(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
Khanolkar, AmalR;
Sovio, Ulla;
Bartlett, JonathanW;
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, M;
Koedam, EL;
Barnes, J;
Bartlett, JW;
Barkhof, F;
Wattjes, MP;
Schott, JM;
Scheltens, P;
Fox, NC;
Alzheimers Dis, Neuroimaging;
(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, KK;
Bartlett, JW;
Barnes, J;
Manning, EN;
Ourselin, S;
Fox, NC;
Alzheimer's Disease Neuroimaging Initiative;
(2013)
Cerebral atrophy in mild cognitive impairment and Alzheimer disease: Rates and acceleration.
Neurology, 80 (7).
pp. 648-54.
ISSN 0028-3878
DOI: https://doi.org/10.1212/WNL.0b013e318281ccd3
Full text not available from this repository.
Scahill, RI;
Ridgway, GR;
Bartlett, J;
Barnes, J;
Ryan, NS;
Mead, S;
Beck, J;
Clarkson, MJ;
Crutch, SJ;
Schott, JM;
+5 more...
Ourselin, S;
Warren, JD;
Hardy, J;
Rossor, MN;
Fox, NC;
(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, VM;
Schott, JM;
Bartlett, JW;
Leung, KK;
Miller, DH;
Fox, NC;
(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
Bartlett, JW;
Frost, C;
Mattsson, N;
Skillbäck, T;
Blennow, K;
Zetterberg, H;
Schott, JM;
(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
Hailstone, JC;
Ridgway, GR;
Bartlett, JW;
Goll, JC;
Crutch, SJ;
Warren, JD;
(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
Macdonald, KE;
Bartlett, JW;
Leung, KK;
Ourselin, S;
Barnes, J;
for the 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.
ISSN 0893-0341
DOI: https://doi.org/10.1097/WAD.0b013e318260a79a
Schott, JM;
Bartlett, JW;
(2012)
Investigating missing data in Alzheimer disease studies.
Neurology.
ISSN 0028-3878
DOI: https://doi.org/10.1212/WNL.0b013e318253d66b
Full text not available from this repository.
Seaman, SR;
Bartlett, JW;
White, IR;
(2012)
Multiple imputation of missing covariates with non-linear effects and interactions: an evaluation of statistical methods.
BMC medical research methodology, 12.
p. 46.
ISSN 1471-2288
DOI: https://doi.org/10.1186/1471-2288-12-46
2011
Bartlett, JW;
Frost, C;
Carpenter, JR;
(2011)
Multiple imputation models should incorporate the outcome in the model of interest.
Brain.
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, J;
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]
http://researchonline.lshtm.ac.uk/id/eprint/4
Full text not available from this repository.
Hailstone, JC;
Ridgway, GR;
Bartlett, JW;
Goll, JC;
Buckley, AH;
Crutch, SJ;
Warren, JD;
(2011)
Voice processing in dementia: a neuropsychological and neuroanatomical analysis.
Brain, 134.
pp. 2535-2547.
ISSN 0006-8950
DOI: https://doi.org/10.1093/brain/awr205
Leung, KK;
Barnes, J;
Modat, M;
Ridgway, GR;
Bartlett, JW;
Fox, NC;
Ourselin, S;
(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, R;
Henley, SMD;
Bartlett, JW;
Hailstone, JC;
Gordon, E;
Sauter, DA;
Frost, C;
Scott, SK;
Warren, JD;
(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
2010
Barnes, J;
Ridgway, GR;
Bartlett, J;
Henley, SMD;
Lehmann, M;
Hobbs, N;
Clarkson, MJ;
MacManus, DG;
Ourselin, S;
Fox, NC;
(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 I diabetes mellitus with persistent sub-optimal glycaemic control: A Diabetes and Psychological Therapies (ADaPT) study.
Health technology assessment (Winchester, England), 14 (22).
1-+.
ISSN 1366-5278
DOI: https://doi.org/10.3310/hta14220
Leung, KK;
Barnes, J;
Ridgway, GR;
Bartlett, JW;
Clarkson, MJ;
MacDonald, K;
Schuff, N;
Fox, NC;
Ourselin, S;
(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
Leung, KK;
Clarkson, MJ;
Bartlett, JW;
Clegg, S;
Jack, CR;
Weiner, MW;
Fox, NC;
Ourselin, S;
Alzheimer's Dis Neuroimaging, I;
(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;
(2010)
Reduced sample sizes for atrophy outcomes in Alzheimer's disease trials: baseline adjustment.
Neurobiology of aging, 31 (8).
pp. 1452-1462.
ISSN 0197-4580
DOI: https://doi.org/10.1016/j.neurobiolaging.2010.04.011
Full text not available from this repository.
Schott, JM;
Bartlett, JW;
Fox, NC;
Barnes, J;
(2010)
Increased Brain Atrophy Rates in Cognitively Normal Older Adults with Low Cerebrospinal Fluid A beta 1-42.
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, J;
Bartlett, JW;
van de Pol, LA;
Loy, CT;
Scahill, RI;
Frost, C;
Thompson, P;
Fox, NC;
(2009)
A meta-analysis of hippocampal atrophy rates in Alzheimer's disease.
Neurobiology of aging, 30 (11).
pp. 1711-23.
ISSN 0197-4580
DOI: https://doi.org/10.1016/j.neurobiolaging.2008.01.010
Full text not available from this repository.
Bartlett, JW;
De Stavola, BL;
Frost, C;
(2009)
Linear mixed models for replication data to efficiently allow for covariate measurement error.
Statistics in medicine, 28 (25).
pp. 3158-78.
ISSN 0277-6715
DOI: https://doi.org/10.1002/sim.3713
Full text not available from this repository.
2008
Bartlett, J;
De Stavola, B;
White, I;
Frost, C;
(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).
502-3; author reply 503-4.
ISSN 0002-9262
DOI: https://doi.org/10.1093/aje/kwm387
Full text not available from this repository.
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. 270-6.
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. 466-75.
ISSN 0960-7692
DOI: https://doi.org/10.1002/uog.5256
Full text not available from this repository.
Ismail, K;
Thomas, SM;
Maissi, E;
Chalder, T;
Schmidt, U;
Bartlett, J;
Patel, A;
Dickens, CM;
Creed, F;
Treasure, J;
(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. 708-19.
ISSN 0003-4819
DOI: https://doi.org/10.7326/0003-4819-149-10-200811180-00005
Full text not available from this repository.
2007
Anderson, VM;
Bartlett, JW;
Fox, NC;
Fisniku, L;
Miller, DH;
(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, J;
Lewis, EB;
Scahill, RI;
Bartlett, JW;
Frost, C;
Schott, JM;
Rossor, MN;
Fox, NC;
(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, J;
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]
http://researchonline.lshtm.ac.uk/id/eprint/8566
Full text not available from this repository.
2006
Anderson, VM;
Bartlett, JW;
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]
http://researchonline.lshtm.ac.uk/id/eprint/9699
Full text not available from this repository.
Ridha, BH;
Barnes, J;
Bartlett, JW;
Godbolt, A;
Pepple, T;
Rossor, MN;
Fox, NC;
(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. 126-7.
ISSN 0950-222X
DOI: https://doi.org/10.1038/sj.eye.6702439
Full text not available from this repository.