Search Results - Gareth Ambler

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  1. 1
    Correction to: Methods to adjust for multiple comparisons in the analysis and sample size calculation of randomised controlled trials with multiple primary outcomes

    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
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  2. 2
    Methods to adjust for multiple comparisons in the analysis and sample size calculation of randomised controlled trials with multiple primary outcomes

    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
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  3. 3
    Risk prediction in multicentre studies when there is confounding by cluster or informative cluster size

    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
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  4. 4
    Sample size calculations based on a difference in medians for positively skewed outcomes in health care studies

    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
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  5. 5
    Systematic review and meta-analysis of clinical effectiveness of self-management interventions in Parkinson’s disease

    Systematic review and meta-analysis of clinical effectiveness of self-management interventions in Parkinson’s disease by Jennifer S. Pigott, Edward J. Kane, Gareth Ambler, Kate Walters, Anette Schrag

    Published 2022-01-01
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  6. 6
    Review and evaluation of performance measures for survival prediction models in external validation settings

    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
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  7. 7
    Biological sex is associated with heterogeneous responses to IL-6 receptor inhibitor treatment in COVID-19—A retrospective cohort study

    Biological sex is associated with heterogeneous responses to IL-6 receptor inhibitor treatment in COVID-19—A retrospective cohort study by Dan F. Stein, Conor Foley, Matt Byott, Eleni Nastouli, Gareth Ambler, Nishkantha Arulkumaran

    Published 2023-08-01
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  8. 8
    An observational cohort study of health outcomes and costs associated with early pregnancy assessment units in the UK

    An observational cohort study of health outcomes and costs associated with early pregnancy assessment units in the UK by Edna Keeney, Maria Memtsa, Venetia Goodhart, Davor Jurkovic, Gareth Ambler, Nazim Khan, Jeff Round

    Published 2022-03-01
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  9. 9
    An evaluation of sample size requirements for developing risk prediction models with binary outcomes

    An evaluation of sample size requirements for developing risk prediction models with binary outcomes by Menelaos Pavlou, Gareth Ambler, Chen Qu, Shaun R. Seaman, Ian R. White, Rumana Z. Omar

    Published 2024-07-01
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  10. 10
    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

    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
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  11. 11
    Outlier identification and monitoring of institutional or clinician performance: an overview of statistical methods and application to national audit data

    Outlier identification and monitoring of institutional or clinician performance: an overview of statistical methods and application to national audit data by Menelaos Pavlou, Gareth Ambler, Rumana Z. Omar, Andrew T. Goodwin, Uday Trivedi, Peter Ludman, Mark de Belder

    Published 2023-01-01
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  12. 12
    Protocol for a prospective double-blind, randomised, placebo-controlled feasibility trial of octreotide infusion during liver transplantation

    Protocol for a prospective double-blind, randomised, placebo-controlled feasibility trial of octreotide infusion during liver transplantation by Gareth Ambler, Norman R Williams, Daniel Martin, Brian R Davidson, Jeremy Fabes, Bina Shah, Michael Spiro

    Published 2021-12-01
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  13. 13
    Stroke risk in older British men: Comparing performance of stroke-specific and composite-CVD risk prediction tools

    Stroke risk in older British men: Comparing performance of stroke-specific and composite-CVD risk prediction tools by Ayesha Ahmed, Gareth Ambler, Snehal M. Pinto Pereira, Lucy Lennon, Olia Papacosta, Peter Whincup, Goya Wannamethee

    Published 2023-02-01
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  14. 14
    Intravenous Thrombolysis Before Mechanical Thrombectomy for Acute Ischemic Stroke: A Meta‐Analysis

    Intravenous Thrombolysis Before Mechanical Thrombectomy for Acute Ischemic Stroke: A Meta‐Analysis by Houwei Du, Hanhan Lei, Gareth Ambler, Shuangfang Fang, Raoli He, Qilin Yuan, David J. Werring, Nan Liu

    Published 2021-12-01
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  15. 15
    Future COVID-19 Booster Vaccine Refusal in Healthcare Workers after a Massive Breakthrough Infection Wave, a Nationwide Survey-Based Study

    Future COVID-19 Booster Vaccine Refusal in Healthcare Workers after a Massive Breakthrough Infection Wave, a Nationwide Survey-Based Study by Fuying Gu, Huiying Lin, Zhenqiang Chen, Gareth Ambler, Xinyan Chen, Xiaoling Chen, Pincang Xia, Nan Liu, Houwei Du

    Published 2023-05-01
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  16. 16
    Cost-effectiveness of peer-supported self-management for people discharged from a mental health crisis team: methodological challenges and recommendations

    Cost-effectiveness of peer-supported self-management for people discharged from a mental health crisis team: methodological challenges and recommendations by Marie Le Novere, Sonia Johnson, Brynmor Lloyd-Evans, Louise Marston, Gareth Ambler, Caroline S. Clarke, David Osborn, Danielle Lamb, Rachael Maree Hunter

    Published 2023-06-01
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  17. 17
    A randomised controlled trial of plasma exchange compared to standard of care in the treatment of severe COVID-19 infection (COVIPLEX)

    A randomised controlled trial of plasma exchange compared to standard of care in the treatment of severe COVID-19 infection (COVIPLEX) by Nishkantha Arulkumaran, Mari Thomas, Matthew Stubbs, Nithya Prasanna, Maryam Subhan, Deepak Singh, Gareth Ambler, Alessia Waller, Mervyn Singer, David Brealey, Marie Scully

    Published 2024-07-01
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  18. 18
    Prevalence, predictors, and patterns of patient reported non-motor outcomes six months after stroke: a prospective cohort studyResearch in context

    Prevalence, predictors, and patterns of patient reported non-motor outcomes six months after stroke: a prospective cohort studyResearch in context by Hatice Ozkan, Gareth Ambler, Gargi Banerjee, John J. Mitchell, Carmen Barbato, Simone Browning, Alex P. Leff, Robert J. Simister, David J. Werring

    Published 2024-12-01
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  19. 19
    A comparison of low- versus standard-dose bridging alteplase in acute ischemic stroke mechanical thrombectomy using indirect methods

    A comparison of low- versus standard-dose bridging alteplase in acute ischemic stroke mechanical thrombectomy using indirect methods by Wei Zheng, Hanhan Lei, Gareth Ambler, David J. Werring, Huiying Lin, Xiaojuan Lin, Yi Tang, Jing Wu, Zhaomin Lin, Nan Liu, Houwei Du

    Published 2023-01-01
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  20. 20
    Evaluation of Array Comparative genomic Hybridisation in prenatal diagnosis of fetal anomalies: a multicentre cohort study with cost analysis and assessment of patient, health professional and commissioner preferences for array comparative genomic hybridisation

    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
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