Risk prediction in multicentre studies when there is confounding by cluster or informative cluster size

by Menelaos Pavlou, Gareth Ambler, Rumana Z. Omar
Published 2021-07-01

Correction to: Methods to adjust for multiple comparisons in the analysis and sample size calculation of randomised controlled trials with multiple primary outcomes

by Victoria Vickerstaff, Rumana Z. Omar, Gareth Ambler
Published 2019-07-01

Methods to adjust for multiple comparisons in the analysis and sample size calculation of randomised controlled trials with multiple primary outcomes

by Victoria Vickerstaff, Rumana Z. Omar, Gareth Ambler
Published 2019-06-01

Sample size calculations based on a difference in medians for positively skewed outcomes in health care studies

by Aidan G. O’Keeffe, Gareth Ambler, Julie A. Barber
Published 2017-12-01

Review and evaluation of performance measures for survival prediction models in external validation settings

by M. Shafiqur Rahman, Gareth Ambler, Babak Choodari-Oskooei, Rumana Z. Omar
Published 2017-04-01

Erratum to Statistical analysis plan for the Laser-1st versus Drops-1st for Glaucoma and Ocular Hypertension Trial (LiGHT): a multi-centre randomised controlled trial

by Victoria Vickerstaff, Gareth Ambler, Catey Bunce, Wen Xing, Gus Gazzard, on behalf of the LiGHT Trial Study Group
Published 2017-07-01

Evaluation of Array Comparative genomic Hybridisation in prenatal diagnosis of fetal anomalies: a multicentre cohort study with cost analysis and assessment of patient, health prof...

by Stephen C Robson, Lyn S Chitty, Stephen Morris, Talitha Verhoef, Gareth Ambler, Diana G Wellesley, Ruth Graham, Claire Leader, Jane Fisher, John A Crolla
Published 2017-02-01

Prediction of individuals at high risk of chronic kidney disease during treatment with lithium for bipolar disorder

by Joseph F. Hayes, David P. J. Osborn, Emma Francis, Gareth Ambler, Laurie A. Tomlinson, Magnus Boman, Ian C. K. Wong, John R. Geddes, Christina Dalman, Glyn Lewis
Published 2021-04-01

Variations in the organisation of and outcomes from Early Pregnancy Assessment Units: the VESPA mixed-methods study

by Maria Memtsa, Venetia Goodhart, Gareth Ambler, Peter Brocklehurst, Edna Keeney, Sergio Silverio, Zacharias Anastasiou, Jeff Round, Nazim Khan, Jennifer Hall, Geraldine Barrett, Ruth Bender-Atik, Judith Stephenson, Davor Jurkovic
Published 2020-12-01

Selective laser trabeculoplasty versus drops for newly diagnosed ocular hypertension and glaucoma: the LiGHT RCT

by Gus Gazzard, Evgenia Konstantakopoulou, David Garway-Heath, Anurag Garg, Victoria Vickerstaff, Rachael Hunter, Gareth Ambler, Catey Bunce, Richard Wormald, Neil Nathwani, Keith Barton, Gary Rubin, Stephen Morris, Marta Buszewicz
Published 2019-06-01

What factors indicate prognosis for adults with depression in primary care? A protocol for meta-analyses of individual patient data using the Dep-GP database [version 3; peer revie...

by Joshua E.J. Buckman, Rob Saunders, Zachary D. Cohen, Katherine Clarke, Gareth Ambler, Robert J. DeRubeis, Simon Gilbody, Steven D. Hollon, Tony Kendrick, Edward Watkins, Ian R. White, Glyn Lewis, Stephen Pilling
Published 2020-04-01

What factors indicate prognosis for adults with depression in primary care? A protocol for meta-analyses of individual patient data using the Dep-GP database [version 2; peer revie...

by Joshua E.J. Buckman, Rob Saunders, Zachary D. Cohen, Katherine Clarke, Gareth Ambler, Robert J. DeRubeis, Simon Gilbody, Steven D. Hollon, Tony Kendrick, Edward Watkins, Ian R. White, Glyn Lewis, Stephen Pilling
Published 2019-10-01

Publisher Correction: Sensitivity and specificity of blood-fluid levels for oral anticoagulant-associated intracerebral haemorrhage

by Abeer Almarzouki, Duncan Wilson, Gareth Ambler, Clare Shakeshaft, Hannah Cohen, Tarek Yousry, Rustam Al-Shahi Salman, Gregory Y. H. Lip, Henry Houlden, Martin M. Brown, Keith W. Muir, Hans Rolf Jäger, David J. Werring
Published 2021-04-01

Clinical and cost effectiveness of a parent mediated intervention to reduce challenging behaviour in pre-schoolers with moderate to severe intellectual disability (EPICC-ID) study...

by Olayinka Farris, Rachel Royston, Michael Absoud, Gareth Ambler, Jacqueline Barnes, Rachael Hunter, Marinos Kyriakopoulos, Kate Oulton, Eleni Paliokosta, Monica Panca, Laura Paulauskaite, Michaela Poppe, Federico Ricciardi, Aditya Sharma, Vicky Slonims, Una Summerson, Alastair Sutcliffe, Megan Thomas, Angela Hassiotis
Published 2020-01-01

A randomised placebo-controlled Phase III multicentre trial: low-dose intravenous immunoglobulin treatment for long-standing complex regional pain syndrome (LIPS trial)

by Andreas Goebel, Jatinder Bisla, Roy Carganillo, Claire Cole, Bernhard Frank, Rima Gupta, Mairi James, Joanna Kelly, Candy McCabe, Holly Milligan, Caroline Murphy, Nick Padfield, Ceri Phillips, Helen Poole, Mark Saunders, Mick Serpell, Nick Shenker, Karim Shoukrey, Lynne Wyatt, Gareth Ambler
Published 2017-11-01

Improving risk adjustment in the PRAiS (Partial Risk Adjustment in Surgery) model for mortality after paediatric cardiac surgery and improving public understanding of its use in mo...

by Christina Pagel, Libby Rogers, Katherine Brown, Gareth Ambler, David Anderson, David Barron, Emily Blackshaw, Sonya Crowe, Kate English, Rodney Franklin, Emily Jesper, Laura Meagher, Mike Pearson, Tim Rakow, Marta Salamonowicz, David Spiegelhalter, John Stickley, Joanne Thomas, Shane Tibby, Victor Tsang, Martin Utley, Thomas Witter
Published 2017-07-01

The effect of vascular risk factor burden on the severity of COVID-19 illness, a retrospective cohort study

by Houwei Du, Xiaobin Pan, Nan Liu, Junnian Chen, Xiaoling Chen, David J. Werring, Gareth Ambler, Xiaoqing Li, Ronghua Chen, Yixian Zhang, Huayao Huang, Feifei Lin, Pincang Xia, Chao Chen, Zhenyang Zheng, Sangru Wu, Hanhan Lei, Lei Gao, Mingxu Huang, Kexu Lin, Xiaoping Xu, Yukun Luo, Ziwen Zhao, Chen Li, Hailong Lin, Yu Lin, Zhenghui Huang, Rongxiang Cao, Limin Chen, On behalf of the Fujian Medical Team Support Wuhan for COVID-19
Published 2020-09-01

Crisis resolution teams for people experiencing mental health crises: the CORE mixed-methods research programme including two RCTs

by Brynmor Lloyd-Evans, Marina Christoforou, David Osborn, Gareth Ambler, Louise Marston, Danielle Lamb, Oliver Mason, Nicola Morant, Sarah Sullivan, Claire Henderson, Rachael Hunter, Stephen Pilling, Fiona Nolan, Richard Gray, Tim Weaver, Kathleen Kelly, Nicky Goater, Alyssa Milton, Elaine Johnston, Kate Fullarton, Melanie Lean, Beth Paterson, Jonathan Piotrowski, Michael Davidson, Rebecca Forsyth, Liberty Mosse, Monica Leverton, Puffin O’Hanlon, Edward Mundy, Tom Mundy, Ellie Brown, Sarah Fahmy, Emma Burgess, Alasdair Churchard, Claire Wheeler, Hannah Istead, David Hindle, Sonia Johnson
Published 2019-04-01