Items where Author is "Diaz-Ordaz, Karla"

Year Item Type Full Text

Bibliographic data only

Links between causal effects and causal association for surrogacy evaluation in a gaussian setting. (2017) Conlon, Anna; Taylor, Jeremy; Li, Yun; Diaz-Ordaz, Karla; Elliott, Michael

Handling missing values in cost effectiveness analyses that use data from cluster randomized trials. (2013) Diaz-Ordaz, K; Kenward, MG; Grieve, R

Multilevel models for cost-effectiveness analyses that use cluster randomised trial data: An approach to model choice. (2013) Ng, Edmond S-W; Diaz-Ordaz, Karla; Grieve, Richard; Nixon, Richard M; Thompson, Simon G; Carpenter, James R

Public

Addressing non-adherence in cluster randomised trials using instrumental variable-based methods. (2020) Agbla, SC

Living risk prediction algorithm (QCOVID) for risk of hospital admission and mortality from coronavirus 19 in adults: national derivation and validation cohort study. (2020) Clift, Ash K; Coupland, Carol AC; Keogh, Ruth H; Diaz-Ordaz, Karla; Williamson, Elizabeth; Harrison, Ewen M; Hayward, Andrew; Hemingway, Harry; Horby, Peter; Mehta, Nisha; Benger, Jonathan; Khunti, Kamlesh; Spiegelhalter, David; Sheikh, Aziz; Valabhji, Jonathan; Lyons, Ronan A; Robson, John; Semple, Malcolm G; Kee, Frank; Johnson, Peter; Jebb, Susan; Williams, Tony; Hippisley-Cox, Julia

Estimated transmissibility and impact of SARS-CoV-2 lineage B.1.1.7 in England. (2021) Davies, Nicholas G; Abbott, Sam; Barnard, Rosanna C; Jarvis, Christopher I; Kucharski, Adam J; Munday, James D; Pearson, Carl AB; Russell, Timothy W; Tully, Damien C; Washburne, Alex D; Wenseleers, Tom; Gimma, Amy; Waites, William; Wong, Kerry LM; van Zandvoort, Kevin; Silverman, Justin D; CMMID COVID-19 Working Group; COVID-19 Genomics UK (COG-UK) Consortium; Diaz-Ordaz, Karla; Keogh, Ruth; Eggo, Rosalind M; Funk, Sebastian; Jit, Mark; Atkins, Katherine E; Edmunds, W John

Increased hazard of death in community-tested cases of SARS-CoV-2 Variant of Concern 202012/01. (2021) Davies, Nicholas G; Jarvis, Christopher I; CMMID COVID-19 Working Group; Edmunds, W John; Jewell, Nicholas P; Diaz-Ordaz, Karla; Keogh, Ruth H

Increased mortality in community-tested cases of SARS-CoV-2 lineage B.1.1.7. (2021) Davies, Nicholas G; Jarvis, Christopher I; CMMID COVID-19 Working Group; Edmunds, W John; Jewell, Nicholas P; Diaz-Ordaz, Karla; Keogh, Ruth H

The agreement between proxy and self-completed EQ-5D for care home residents was better for index scores than individual domains. (2014) Devine, Angela; Taylor, Stephanie JC; Spencer, Anne; Diaz-Ordaz, Karla; Eldridge, Sandra; Underwood, Martin

Data-adaptive doubly robust instrumental variable methods for treatment effect heterogeneity. (2020) Diaz-Ordaz, Karla; Daniel, Rhian; Kreif, Noemi

A systematic review of cluster randomised trials in residential facilities for older people suggests how to improve quality. (2013) Diaz-Ordaz, Karla; Froud, Robert; Sheehan, Bart; Eldridge, Sandra

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. (2021) Docherty, Annemarie B; Mulholland, Rachel H; Lone, Nazir I; Cheyne, Christopher P; De Angelis, Daniela; Diaz-Ordaz, Karla; Donegan, Cara; Drake, Thomas M; Dunning, Jake; Funk, Sebastian; García-Fiñana, Marta; Girvan, Michelle; Hardwick, Hayley E; Harrison, Janet; Ho, Antonia; Hughes, David M; Keogh, Ruth H; Kirwan, Peter D; Leeming, Gary; Nguyen Van-Tam, Jonathan S; Pius, Riinu; Russell, Clark D; Spencer, Rebecca G; Tom, Brian Dm; Turtle, Lance; Openshaw, Peter Jm; Baillie, J Kenneth; Harrison, Ewen M; Semple, Malcolm G; ISARIC4C Investigators

Oliver Hines and Karla Diaz-Ordazʼs Contribution to the Discussion of ‘Assumption-Lean Inference For Generalised Linear Model Parameters’ by Vansteelandt and Dukes. (2022) Hines, Oliver; Diaz-Ordaz, Karla

Causal graphs for the analysis of genetic cohort data. (2020) Hines, Oliver; Diaz-Ordaz, Karla; Vansteelandt, Stijn; Jamshidi, Yalda

Demystifying Statistical Learning Based on Efficient Influence Functions. (2022) Hines, Oliver; Dukes, Oliver; Diaz-Ordaz, Karla; Vansteelandt, Stijn

Risk prediction of covid-19 related death and hospital admission in adults after covid-19 vaccination: national prospective cohort study. (2021) Hippisley-Cox, Julia; Coupland, Carol Ac; Mehta, Nisha; Keogh, Ruth H; Diaz-Ordaz, Karla; Khunti, Kamlesh; Lyons, Ronan A; Kee, Frank; Sheikh, Aziz; Rahman, Shamim; Valabhji, Jonathan; Harrison, Ewen M; Sellen, Peter; Haq, Nazmus; Semple, Malcolm G; Johnson, Peter WM; Hayward, Andrew; Nguyen-Van-Tam, Jonathan S

Missing Data in Cluster Randomised Trials. (2017) Hossain, A

Missing continuous outcomes under covariate dependent missingness in cluster randomised trials. (2016) Hossain, A; Diaz-Ordaz, K; Bartlett, JW

Coping with persistent pain, effectiveness research into self-management (COPERS): statistical analysis plan for a randomised controlled trial. (2014) Kahan, Brennan C; Diaz-Ordaz, Karla; Homer, Kate; Carnes, Dawn; Underwood, Martin; Taylor, Stephanie Jc; Bremner, Stephen A; Eldridge, Sandra

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. (2021) Katsoulis, Michail; Lai, Alvina G; Diaz-Ordaz, Karla; Gomes, Manuel; Pasea, Laura; Banerjee, Amitava; Denaxas, Spiros; Tsilidis, Kostas; Lagiou, Pagona; Misirli, Gesthimani; Bhaskaran, Krishnan; Wannamethee, Goya; Dobson, Richard; Batterham, Rachel L; Kipourou, Dimitra-Kleio; Lumbers, R Thomas; Wen, Lan; Wareham, Nick; Langenberg, Claudia; Hemingway, Harry

Weight Change and the Onset of Cardiovascular Diseases: Emulating Trials Using Electronic Health Records. (2021) Katsoulis, Michail; Stavola, Bianca D; Diaz-Ordaz, Karla; Gomes, Manuel; Lai, Alvina; Lagiou, Pagona; Wannamethee, Goya; Tsilidis, Konstantinos; Lumbers, R Thomas; Denaxas, Spiros; Banerjee, Amitava; Parisinos, Constantinos A; Batterham, Rachel; Patel, Riyaz; Langenberg, Claudia; Hemingway, Harry

Projecting the impact of triple CFTR modulator therapy on intravenous antibiotic requirements in cystic fibrosis using patient registry data combined with treatment effects from randomised trials. (2021) Keogh, Ruth H; Cosgriff, Rebecca; Andrinopoulou, Eleni-Rosalina; Brownlee, Keith G; Carr, Siobhán B; Diaz-Ordaz, Karla; Granger, Emily; Jewell, Nicholas P; Lewin, Alex; Leyrat, Clemence; Schlüter, Daniela K; van Smeden, Maarten; Szczesniak, Rhonda D; Connett, Gary J

Importance of patient bed pathways and length of stay differences in predicting COVID-19 hospital bed occupancy in England. (2021) Leclerc, Quentin J; Fuller, Naomi M; Keogh, Ruth H; Diaz-Ordaz, Karla; Sekula, Richard; Semple, Malcolm G; ISARIC4C Investigators; CMMID COVID-19 Working Group; Atkins, Katherine E; Procter, Simon R; Knight, Gwenan M

Effects of the financial crisis and Troika austerity measures on health and health care access in Portugal. (2016) Legido-Quigley, Helena; Karanikolos, Marina; Hernandez-Plaza, Sonia; de Freitas, Cláudia; Bernardo, Luís; Padilla, Beatriz; Sá Machado, Rita; Diaz-Ordaz, Karla; Stuckler, David; McKee, Martin

Comparison of methods for predicting COVID-19-related death in the general population using the OpenSAFELY platform. (2022) OpenSAFELY Collaborative; Williamson, Elizabeth J; Tazare, John; Bhaskaran, Krishnan; McDonald, Helen I; Walker, Alex J; Tomlinson, Laurie; Wing, Kevin; Bacon, Sebastian; Bates, Chris; Curtis, Helen J; Forbes, Harriet J; Minassian, Caroline; Morton, Caroline E; Nightingale, Emily; Mehrkar, Amir; Evans, David; Nicholson, Brian D; Leon, David A; Inglesby, Peter; MacKenna, Brian; Davies, Nicholas G; DeVito, Nicholas J; Drysdale, Henry; Cockburn, Jonathan; Hulme, William J; Morley, Jessica; Douglas, Ian; Rentsch, Christopher T; Mathur, Rohini; Wong, Angel; Schultze, Anna; Croker, Richard; Parry, John; Hester, Frank; Harper, Sam; Grieve, Richard; Harrison, David A; Steyerberg, Ewout W; Eggo, Rosalind M; Diaz-Ordaz, Karla; Keogh, Ruth; Evans, Stephen JW; Smeeth, Liam; Goldacre, Ben

Domains of transmission and association of community, school, and household sanitation with soil-transmitted helminth infections among children in coastal Kenya. (2019) Oswald, William E; Halliday, Katherine E; Mcharo, Carlos; Witek-McManus, Stefan; Kepha, Stella; Gichuki, Paul M; Cano, Jorge; Diaz-Ordaz, Karla; Allen, Elizabeth; Mwandawiro, Charles S; Anderson, Roy M; Brooker, Simon J; Pullan, Rachel L; Njenga, Sammy M

A Machine-Learning Approach for Estimating Subgroup- and Individual-Level Treatment Effects: An Illustration Using the 65 Trial. (2022) Sadique, Zia; Grieve, Richard; Diaz-Ordaz, Karla; Mouncey, Paul; Lamontagne, Francois; O'Neill, Stephen

Informative presence and observation in routine health data: A review of methodology for clinical risk prediction. (2020) Sisk, Rose; Lin, Lijing; Sperrin, Matthew; Barrett, Jessica K; Tom, Brian; Diaz-Ordaz, Karla; Peek, Niels; Martin, Glen P

Invited Commentary: Treatment Drop-in-Making the Case for Causal Prediction. (2021) Sperrin, Matthew; Diaz-Ordaz, Karla; Pajouheshnia, Romin

Improving the self-management of chronic pain: COping with persistent Pain, Effectiveness Research in Self-management (COPERS). (2016) Taylor, Stephanie JC; Carnes, Dawn; Homer, Kate; Pincus, Tamar; Kahan, Brennan C; Hounsome, Natalia; Eldridge, Sandra; Spencer, Anne; Diaz-Ordaz, Karla; Rahman, Anisur; Mars, Tom S; Foell, Jens; Griffiths, Chris J; Underwood, Martin R

Exercise for depression in care home residents: a randomised controlled trial with cost-effectiveness analysis (OPERA). (2013) Underwood, M; Lamb, SE; Eldridge, S; Sheehan, B; Slowther, A; Spencer, A; Thorogood, M; Atherton, N; Bremner, SA; Devine, A; Diaz-Ordaz, K; Ellard, DR; Potter, R; Spanjers, K; Taylor, SJC

Exercise for depression in elderly residents of care homes: a cluster-randomised controlled trial. (2013) Underwood, Martin; Lamb, Sarah E; Eldridge, Sandra; Sheehan, Bart; Slowther, Anne-Marie; Spencer, Anne; Thorogood, Margaret; Atherton, Nicky; Bremner, Stephen A; Devine, Angela; Diaz-Ordaz, Karla; Ellard, David R; Potter, Rachel; Spanjers, Kathleen; Taylor, Stephanie JC

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. (2021) Wassenaar, TM; Wheatley, CM; Beale, N; Nichols, T; Salvan, P; Meaney, A; Atherton, K; Diaz-Ordaz, K; Dawes, H; Johansen-Berg, H

Predicting COVID-19 related death using the OpenSAFELY platform. (2021) Williamson, Elizabeth J; Tazare, John; Bhaskaran, Krishnan; McDonald, Helen I; Walker, Alex J; Tomlinson, Laurie; Wing, Kevin; Bacon, Sebastian; Bates, Chris; Curtis, Helen J; Forbes, Harriet; Minassian, Caroline; Morton, Caroline E; Nightingale, Emily; Mehrkar, Amir; Evans, Dave; Nicholson, Brian D; Leon, Dave; Inglesby, Peter; MacKenna, Brian; Davies, Nicholas G; DeVito, Nicholas J; Drysdale, Henry; Cockburn, Jonathan; Hulme, Will; Morley, Jess; Douglas, Ian; Rentsch, Christopher T; Mathur, Rohini; Wong, Angel; Schultze, Anna; Croker, Richard; Parry, John; Hester, Frank; Harper, Sam; Grieve, Richard; Harrison, David A; Steyerberg, Ewout W; Eggo, Rosalind M; Diaz-Ordaz, Karla; Keogh, Ruth; Evans, Stephen JW; Smeeth, Liam; Goldacre, Ben

Study protocol: Comparison of different risk prediction modelling approaches for COVID-19 related death using the OpenSAFELY platform. (2020) Williamson, Elizabeth J; Tazare, John; Bhaskaran, Krishnan; Walker, Alex J; McDonald, Helen I; Tomlinson, Laurie; Bacon, Sebastian; Bates, Chris; Curtis, Helen J; Forbes, Harriet; Minassian, Caroline; Morton, Caroline E; Nightingale, Emily; Mehrkar, Amir; Evans, Dave; Nicholson, Brian D; Leon, David; Inglesby, Peter; MacKenna, Brian; Cockburn, Jonathan; Davies, Nicholas G; Hulme, William; Morley, Jessica; Douglas, Ian J; Rentsch, Christopher T; Mathur, Rohini; Wong, Angel; Schultze, Anna; Croker, Richard; Parry, John; Hester, Frank; Harper, Sam; Perera, Rafael; Grieve, Richard; Harrison, David; Steyerberg, Ewout; Eggo, Rosalind M; Diaz-Ordaz, Karla; Keogh, Ruth; Evans, Stephen JW; Smeeth, Liam; Goldacre, Ben

Restricted

Estimated transmissibility and impact of SARS-CoV-2 lineage B.1.1.7 in England. (2020) Davies, Nicholas G; Abbott, Sam; Barnard, Rosanna C; Jarvis, Christopher I; Kucharski, Adam J; Munday, James D; Pearson, Carl AB; Russell, Timothy W; Tully, Damien C; Washburne, Alex D; Wenseleers, Tom; Gimma, Amy; Waites, William; Wong, Kerry LM; van Zandvoort, Kevin; Silverman, Justin D; Diaz-Ordaz, Karla; Keogh, Ruth; Eggo, Rosalind M; Funk, Sebastian; Jit, Mark; Atkins, Katherine E; Edmunds, W John