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K. Diaz-Ordaz · SciRah

Researcher profile · Semantic Scholar

K. Diaz-Ordaz

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K. Diaz-Ordaz — researcher profile on SciRah

h-index: 26
Works: 94
Citations: 6,053

Most-cited papers

Estimated transmissibility and impact of SARS-CoV-2 lineage B.1.1.7 in England
N. Davies, S. Abbott, R. Barnard, C. Jarvis +19 more
2021Science2,353 citations Open access
Semantic Scholar
Increased mortality in community-tested cases of SARS-CoV-2 lineage B.1.1.7
N. Davies, C. Jarvis, W. Edmunds, N. Jewell +2 more
2021Nature914 citations Open access
Semantic Scholar
Living risk prediction algorithm (QCOVID) for risk of hospital admission and mortality from coronavirus 19 in adults: national derivation and validation cohort study
A. Clift, C. Coupland, R. Keogh, K. Diaz-Ordaz +19 more
2020British medical journal521 citations Open access
Semantic Scholar
Estimated transmissibility and severity of novel SARS-CoV-2 Variant of Concern 202012/01 in England
N. Davies, S. Abbott, R. Barnard, C. Jarvis +19 more
2020medRxiv361 citations Open access
Semantic Scholar
Risk prediction of covid-19 related death and hospital admission in adults after covid-19 vaccination: national prospective cohort study
J. Hippisley-Cox, C. Coupland, N. Mehta, R. Keogh +14 more
2021British medical journal297 citations Open access
Semantic Scholar
Demystifying Statistical Learning Based on Efficient Influence Functions
Oliver Hines, O. Dukes, K. Diaz-Ordaz, S. Vansteelandt
2021American Statistician201 citations Open access
Semantic Scholar
Exercise for depression in elderly residents of care homes: a cluster-randomised controlled trial
M. Underwood, S. Lamb, S. Eldridge, B. Sheehan +11 more
2013The Lancet135 citations Open access
Semantic Scholar
Effects of the financial crisis and Troika austerity measures on health and health care access in Portugal.
H. Legido-Quigley, M. Karanikolos, S. Hernández-Plaza, C. de Freitas +6 more
2016Health Policy112 citations Open access
Semantic Scholar
Changes in in-hospital mortality in the first wave of COVID-19: a multicentre prospective observational cohort study using the WHO Clinical Characterisation Protocol UK
A. Docherty, R. Mulholland, N. Lone, C. Cheyne +25 more
2021The Lancet Respiratory Medicine96 citations Open access
Semantic Scholar
The effect of a one-year vigorous physical activity intervention on fitness, cognitive performance and mental health in young adolescents: the Fit to Study cluster randomised controlled trial
T. Wassenaar, C. Wheatley, N. Beale, T. Nichols +6 more
2021International Journal of Behavioral Nutrition and Physical Activity87 citations Open access
Semantic Scholar
Identifying adults at high-risk for change in weight and BMI in England: a longitudinal, large-scale, population-based cohort study using electronic health records
M. Katsoulis, A. Lai, K. Diaz-Ordaz, M. Gomes +16 more
2021The Lancet Diabetes and Endocrinology82 citations Open access
Semantic Scholar
Are missing data adequately handled in cluster randomised trials? A systematic review and guidelines
K. Diaz-Ordaz, M. Kenward, A. Cohen, Claire L. Coleman +1 more
2014Clinical Trials63 citations
Semantic Scholar
Quality of cluster randomized controlled trials in oral health: a systematic review of reports published between 2005 and 2009.
R. Froud, S. Eldridge, K. Diaz-Ordaz, V. Marinho +1 more
2012Community Dentistry and Oral Epidemiology60 citations
Semantic Scholar
On Locality of Local Explanation Models
Sahra Ghalebikesabi, Lucile Ter-Minassian, K. Diaz-Ordaz, Chris C. Holmes
2021Neural Information Processing Systems53 citations
Semantic Scholar
Exercise for depression in care home residents: a randomised controlled trial with cost-effectiveness analysis (OPERA).
M. Underwood, S. Lamb, S. Eldridge, B. Sheehan +11 more
2013Health Technology Assessment53 citations Open access
Semantic Scholar
Informative presence and observation in routine health data: A review of methodology for clinical risk prediction
R. Sisk, Li-Jing Lin, M. Sperrin, Jessica K. Barrett +4 more
2020J. Am. Medical Informatics Assoc.48 citations Open access
Semantic Scholar
The agreement between proxy and self-completed EQ-5D for care home residents was better for index scores than individual domains
A. Devine, Stephanie J. C. Taylor, Anne E. Spencer, K. Diaz-Ordaz +2 more
2014Journal of Clinical Epidemiology47 citations Open access
Semantic Scholar
Multiple Imputation Methods for Handling Missing Data in Cost-effectiveness Analyses That Use Data from Hierarchical Studies
M. Gomes, K. Diaz-Ordaz, R. Grieve, M. Kenward
2013Medical decision making45 citations Open access
Semantic Scholar
A systematic review of cluster randomised trials in residential facilities for older people suggests how to improve quality
K. Diaz-Ordaz, R. Froud, B. Sheehan, S. Eldridge
2013BMC Medical Research Methodology44 citations Open access
Semantic Scholar
Improving the self-management of chronic pain : COping with persistent Pain, Effectiveness Research in Self-management (COPERS)
Stephanie J. C. Taylor, D. Carnes, K. Homer, T. Pincus +10 more
201641 citations Open access
Semantic Scholar
A comparison of covariate adjustment approaches under model misspecification in individually randomized trials
M. S. Tackney, T. Morris, Ian R. White, C. Leyrat +2 more
2022Trials39 citations Open access
Semantic Scholar
Multilevel models for cost-effectiveness analyses that use cluster randomised trial data: An approach to model choice
Edmond S. W. Ng, K. Diaz-Ordaz, R. Grieve, R. Nixon +2 more
2016Statistical Methods in Medical Research35 citations Open access
Semantic Scholar
Escape from a semi-circle and Sturmian maximizing measures
V. Anagnostopoulou, K. Diaz-Ordaz, O. Jenkinson, C. Richard
200732 citations
Semantic Scholar
Variable importance measures for heterogeneous causal effects
Oliver Hines, K. Diaz-Ordaz, S. Vansteelandt
2022Biometrics31 citations Open access
Semantic Scholar
Importance of patient bed pathways and length of stay differences in predicting COVID-19 hospital bed occupancy in England
Q. Leclerc, Naomi M. Fuller, R. Keogh, K. Diaz-Ordaz +5 more
2021BMC Health Services Research29 citations Open access
Semantic Scholar
Missing continuous outcomes under covariate dependent missingness in cluster randomised trials
Anower Hossain, K. Diaz-Ordaz, J. Bartlett
2016Statistical Methods in Medical Research28 citations Open access
Semantic Scholar
Weight Change and the Onset of Cardiovascular Diseases: Emulating Trials Using Electronic Health Records
M. Katsoulis, B. Stavola, K. Diaz-Ordaz, M. Gomes +12 more
2021Epidemiology25 citations Open access
Semantic Scholar
Decay of correlations for non-Hölder observables for one-dimensional expanding Lorenz-like maps
K. Diaz-Ordaz
200622 citations Open access
Semantic Scholar
A Machine-Learning Approach for Estimating Subgroup- and Individual-Level Treatment Effects: An Illustration Using the 65 Trial
Z. Sadique, R. Grieve, K. Diaz-Ordaz, P. Mouncey +2 more
2022Medical decision making21 citations Open access
Semantic Scholar
Projecting the impact of triple CFTR modulator therapy on IV antibiotic requirements in cystic fibrosis using patient registry data combined with treatment effects from randomised trials
R. Keogh, R. Cosgriff, E. Andrinopoulou, K. Brownlee +10 more
2021Thorax18 citations Open access
Semantic Scholar
Risk factors for unilateral cranial cruciate ligament rupture diagnosis and for clinical management in dogs under primary veterinary care in the UK.
C. Pegram, D. Brodbelt, K. Diaz-Ordaz, Y. Chang +3 more
2023The Veterinary Journal17 citations Open access
Semantic Scholar
Protocol for the development and evaluation of a tool for predicting risk of short-term adverse outcomes due to COVID-19 in the general UK population
J. Hippisley-Cox, A. Clift, C. Coupland, R. Keogh +20 more
2020medRxiv12 citations Open access
Semantic Scholar
Methods for estimating complier average causal effects for cost‐effectiveness analysis
K. Diaz-Ordaz, Angelo J Franchini, R. Grieve
2016Journal of the Royal Statistical Society. Series A,12 citations Open access
Semantic Scholar
Parameterising the effect of a continuous exposure using average derivative effects
Oliver Hines, K. Diaz-Ordaz, S. Vansteelandt
202111 citations
Semantic Scholar
Domains of transmission and association of community, school, and household sanitation with soil-transmitted helminth infections among children in coastal Kenya
W. Oswald, K. Halliday, Carlos Mcharo, S. Witek-Mcmanus +10 more
2019bioRxiv11 citations Open access
Semantic Scholar
Sturmian maximizing measures for the piecewise-linear cosine family
V. Anagnostopoulou, K. Diaz-Ordaz, O. Jenkinson, C. Richard
2012Bulletin of the Brazilian Mathematical Society, New Series11 citations Open access
Semantic Scholar
Invited Commentary: Treatment Drop-in—Making the Case for Causal Prediction
M. Sperrin, K. Diaz-Ordaz, R. Pajouheshnia
2021American Journal of Epidemiology9 citations Open access
Semantic Scholar
Robust Inference for Mediated Effects in Partially Linear Models
Oliver Hines, S. Vansteelandt, K. Diaz-Ordaz
2020Psychometrika9 citations Open access
Semantic Scholar
Causal graphs for the analysis of genetic cohort data.
Oliver Hines, K. Diaz-Ordaz, S. Vansteelandt, Y. Jamshidi
2020Physiological Genomics9 citations Open access
Semantic Scholar
Links Between Causal Effects and Causal Association for Surrogacy Evaluation in a Gaussian Setting
A. Conlon, Jeremy M. G. Taylor, Yun Li, K. Diaz-Ordaz +1 more
2017Statistics in Medicine8 citations Open access
Semantic Scholar
PWSHAP: A Path-Wise Explanation Model for Targeted Variables
Lucile Ter-Minassian, Oscar Clivio, K. Diaz-Ordaz, Robin J. Evans +1 more
2023International Conference on Machine Learning6 citations Open access
Semantic Scholar
Comparison of methods for predicting COVID-19-related death in the general population using the OpenSAFELY platform
E. Williamson, J. Tazare, K. Bhaskaran, H. Mcdonald +41 more
2022Diagnostic and Prognostic Research6 citations Open access
Semantic Scholar
Using Animation to Self-Report Health: A Randomized Experiment with Children
C. Guerriero, N. Jaume, K. Diaz-Ordaz, K. Brown +4 more
2019Patient6 citations
Semantic Scholar
Importance of patient bed pathways and length of stay differences in predicting COVID-19 bed occupancy in England
Q. Leclerc, Naomi M. Fuller, R. Keogh, K. Diaz-Ordaz +5 more
2021medRxiv5 citations Open access
Semantic Scholar
Entrance time functions for flat spot maps
V. Anagnostopoulou, K. Diaz-Ordaz, Oliver Jenkinson, C. Richard
20105 citations
Semantic Scholar
Estimating distribution of length of stay in a multi-state model conditional on the pathway, with an application to patients hospitalised with Covid-19
R. Keogh, K. Diaz-Ordaz, N. Jewell, M. Semple +2 more
2023Lifetime Data Analysis4 citations Open access
Semantic Scholar
Coping with Persistent Pain, Effectiveness Research into Self-management (COPERS): statistical analysis plan for a randomised controlled trial
B. Kahan, K. Diaz-Ordaz, K. Homer, D. Carnes +4 more
2014Trials4 citations Open access
Semantic Scholar
The flat spot standard family: variation of the entrance time median
V. Anagnostopoulou, K. Diaz-Ordaz, O. Jenkinson, C. Richard
20124 citations
Semantic Scholar
Optimally weighted average derivative effects
Oliver Hines, K. Diaz-Ordaz, S. Vansteelandt
20233 citations
Semantic Scholar
On a comprehensive model of the novel coronavirus (COVID-19) under Mittag-Leffler derivative
N. Davies, S. Abbott, R. Barnard, C. Jarvis +14 more
20213 citations
Semantic Scholar

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