Marian Knight
University of Oxford
462 Papers
1.2K Citations
Marian Knight is an academic researcher from University of Oxford. The author has contributed to research in topics: Medicine & Population. The author has an hindex of 57, co-authored 360 publications. Previous affiliations of Marian Knight include National Institute for Health Research & John Radcliffe Hospital.
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Papers
Outcomes at five to eight years of age for children with Hirschsprung’s disease
Benjamin Allin,Charles Opondo,Timothy Bradnock,Simon E. Kenny,Jennifer J Kurinczuk,Gregor M. Walker,Marian Knight +6 more
TL;DR: The high rates of faecal incontinence, unplanned procedures and low quality of life scores are sobering, and ensuring clinicians address the bladder, bowel and psychological problems experienced by children should be a priority.
Factors Associated With Maternal Mortality at Advanced Maternal Age: A Population-based Case-control Study
TL;DR: It was showed that maternal bacteremia is associated with initial fever during labor and fever ≥102°F and the need for research focused specifically on intrapartum fever is highlighted.
Dimethyl fumarate in patients admitted to hospital with COVID-19 (RECOVERY): a randomised, controlled, open-label, platform trial
Peter Horby,Leon Peto,Natalie Staplin,Mark Campbell,Guilherme Pessoa-Amorim,Marion Mafham,Jonathan Emberson,Richard Stewart,Benjamin Prudon,Alison Uriel,Christopher Green,Devesh Dhasmana,Flora Malein,Jaydip Majumdar,Paul Collini,Jack Shurmer,Bryan Yates,J Kenneth Baillie,Maya H Buch,Jeremy Day,Saul N. Faust,Thomas Jaki,Katie Jeffery,Edmund Juszczak,Marian Knight,Wei Shen Lim,Alan Montgomery,Andrew Mumford,Kathryn M. Rowan,Guy Thwaites,Richard Haynes,Martin Landray +31 more
- 15 Jul 2024
Abstract: SUMMARY Background Dimethyl fumarate (DMF) is an anti-inflammatory drug that has been proposed as a treatment for patients hospitalised with COVID-19 Methods This randomised, controlled, open-label platform trial (Randomised Evaluation of COVID-19 Therapy [RECOVERY]), is assessing multiple possible treatments in patients hospitalised for COVID-19. In this initial assessment of DMF, performed at 27 UK hospitals, eligible and consenting adults were randomly allocated (1:1) to either usual standard of care alone or usual standard of care plus DMF 120mg twice daily for 2 days followed by 240mg twice daily for 8 days, or until discharge if sooner. The primary outcome was clinical status on day 5 measured on a seven-point ordinal scale, assessed using a proportional odds model. Secondary outcomes were time to sustained improvement in clinical status, time to discharge, day 5 peripheral blood oxygenation, day 5 C-reactive protein, and improvement in day 10 clinical status. The trial is registered with ISRCTN (50189673) and clinicaltrials.gov ( NCT04381936 ). Findings Between 2 March 2021 and 18 November 2021, 713 patients were enrolled in the DMF evaluation, of whom 356 were randomly allocated to receive usual care plus DMF, and 357 to usual care alone. 95% of patients were receiving corticosteroids as part of routine care. There was no evidence of a beneficial effect of DMF on clinical status at day 5 (common odds ratio of unfavourable outcome 1.12; 95% CI 0.85-1.46; p=0.42). There was no significant effect of DMF on any secondary outcome. As expected, DMF caused flushing and gastrointestinal symptoms, each in around 6% of patients, but no new adverse effects were identified. Interpretation In adults hospitalised with COVID-19, DMF was not associated with an improvement in clinical outcomes. Funding UK Research and Innovation (Medical Research Council) and National Institute of Health Research (Grant ref: MC_PC_19056).
Causes and circumstances of maternal death: a secondary analysis of the Community-Level Interventions for Pre-eclampsia (CLIP) trials cohort
Annet M. Aukes,Kristina Arion,Jeffrey N Bone,Jing Li,Marianne Vidler,Mrutyunjaya B Bellad,Umesh Charantimath,Shivaprasad S. Goudar,Zahra Hoodbhoy,Geetanjali Katageri,Salésio Macuacua,Ashalata Mallapur,Khátia Munguambe,Rahat Qureshi,Charfudin Sacoor,Esperança Sevene,Sana Sheikh,Anifa Valá,Gwyneth Lewis,Zulfiqar A Bhutta,Peter von Dadelszen,Laura A. Magee,Mai-Lei Woo Kinshella,Hubert Wong,Peter von Dadelszen,Faustino Vilanculo,Marianne Vidler,Anifa Valá,Ugochi V Ukah,Domena K. Tu,Lehana Thabane,Corsino Tchavana,Jim Thornton,John Sotunsa,Joel Singer,Sana Sheikh,Sumedha Sharma,Esperança Sevene,Nadine Schuurman,Diane Sawchuck,Charfudin Sacoor,Amit Revankar,Farrukh Raza,Umesh Y Ramdurg,Rahat Qureshi,Rosa Pires,Beth Payne,Vivalde Nobela,Cláudio Nkumbula,Ariel Nhancolo,Zefanias Nhamirre,Khátia Munguambe,Geetanjali I Mungarwadi,Dulce Mulungo,Sibone Mocumbi,Craig Mitton,Mario Merialdi,Javed Memon,Analisa Matavele,Sphoorthi S Mastiholi,Ernesto Mandlate,Ashalata Mallapur,Laura A. Magee,Sónia Maculuve,Salésio Macuacua,Eusebio Macete,Marta Macamo,Mansun Lui,Jing Li,Gwyneth Lewis,Simon Lewin,Tang Lee,Ana Langer,Uday S Kudachi,Bhalachandra S. Kodkany,Marian Knight,Gudadayya S Kengapur,Avinash Kavi,Geetanjali Katageri,Chirag Kariya,Chandrappa C Karadiguddi,Namdev A Kamble,Anjali Joshi,Eileen K. Hutton,Amjad Hussain,Narayan V. Honnungar,Zahra Hoodbhoy,William A. Grobman,Shivaprasad S. Goudar,Emília da Silva Gonçalves,Tabassum Firoz,Veronique Fillipi,Paulo Filimone,Susheela Engelbrecht,Dustin Dunsmuir,Guy A. Dumont,Sharla Drebit,France Donnay,Shafik Dharamsi,Vaibhav B Dhamanekar +99 more
- 03 Jun 2024
Abstract: Summary Background Incomplete vital registration systems mean that causes of death during pregnancy and childbirth are poorly understood in low-income and middle-income countries. To inform global efforts to reduce maternal mortality, we compared physician review and computerised analysis of verbal autopsies (interpreting verbal autopsies [InterVA] software), to understand their agreement on maternal cause of death and circumstances of mortality categories (COMCATs) in the Community-Level Interventions for Pre-eclampsia (CLIP) cluster randomised trials. Methods The CLIP trials took place in India, Pakistan, and Mozambique, enrolling pregnant women aged 12–49 years between Nov 1, 2014, and Feb 28, 2017. 69 330 pregnant women were enrolled in 44 clusters (36 008 in the 22 intervention clusters and 33 322 in the 22 control clusters). In this secondary analysis of maternal deaths in CLIP, we included women who died in any of the 22 intervention clusters or 22 control clusters. Trained staff administered the WHO 2012 verbal autopsy after maternal deaths. Two physicians (and a third for consensus, if needed) reviewed trial surveillance data and verbal autopsies, and, in intervention clusters, community health worker-led visit data. They determined cause of death according to the WHO International Classification of Diseases-Maternal Mortality (ICD-MM). Verbal autopsies were also analysed by InterVA computer models (versions 4 and 5) to generate cause of death. COMCAT analysis was provided by InterVA-5 and, in India, by physician review of Maternal Newborn Health Registry data. Causes of death and COMCATs assigned by physician review, Inter-VA-4, and InterVA-5 were compared, with agreement assessed with Cohen's κ coefficient. Findings Of 61 988 pregnancies with successful follow-up in the CLIP trials, 143 maternal deaths were reported (16 deaths in India, 105 in Pakistan, and 22 in Mozambique). The maternal death rate was 231 (95% CI 193–268) per 100 000 identified pregnancies. Most deaths were attributed to direct maternal causes (rather than indirect or undetermined causes as per ICD-MM classification), with fair to good agreement between physician review and InterVA-4 (κ=0·56 [95% CI 0·43–0·66]) or InterVA-5 (κ=0·44 [0·30–0·57]), and InterVA-4 and InterVA-5 (κ=0·72 [0·60–0·84]). The top three causes of death were the same by physician review, InterVA-4, and InterVA-5 (ICD-MM categories obstetric haemorrhage, non-obstetric complications, and hypertensive disorders); however, attribution of individual patient deaths to obstetric haemorrhage varied more between methods (physician review, 38 [27%] deaths; InterVA-4, 69 [48%] deaths; and InterVA-5, 82 [57%] deaths), than did attribution to non-obstetric causes (physician review, 39 [27%] deaths; InterVA-4, 37 [26%] deaths; and InterVA-5, 28 [20%] deaths) or hypertensive disorders (physician review, 23 [16%] deaths; InterVA-4, 25 [17%] deaths; and InterVA-5, 24 [17%] deaths). Agreement for all nine ICD-MM categories was fair for physician review versus InterVA-4 (κ=0·48 [0·38–0·58]), poor for physician review versus InterVA-5 (κ=0·36 [0·27–0·46]), and good for InterVA-4 versus InterVA-5 (κ=0·69 [0·59–0·79]). The most commonly assigned COMCATs by InterVA-5 were emergencies (68 [48%] of 143 deaths) and health systems (62 [43%] deaths), and by physician review (India only) were health systems (seven [44%] of 16 deaths) and inevitability (five [31%] deaths); agreement between InterVA-5 and physician review (India data only) was poor (κ=0·04 [0·00–0·15]). Interpretation Our findings indicate that InterVA-5 is less accurate than InterVA-4 at ascertaining causes and circumstances of maternal death, when compared with physician review. Our results suggest a need to improve the next iteration of InterVA, and for researchers and clinicians to preferentially use InterVA-4 when recording maternal deaths. Funding University of British Columbia (grantee of the Bill & Melinda Gates Foundation).
Aetiology and use of antibiotics in pregnancy-related infections: results of the WHO Global Maternal Sepsis Study (GLOSS), 1-week inception cohort
Carolina C. Ribeiro‐do‐Valle,Mercedes Bonet,Vanessa Brizuela,Edgardo Abalos,Adama Baguiya,Fernando Bellissimo‐Rodrigues,Mihaela Alexandra Budianu,Lucian Pușcașiu,Marian Knight,David Lissauer,Catherine Dunlop,Shevin T. Jacob,Sadia Shakoor,Luis Gadama,Bouchra Assarag,João Paulo Souza,José Guilherme Cecatti,Mohammad Iqbal Aman,Bashir Noormal,Virginia Díaz,Marisa Espinoza,Julia Pasquale,Charlotte Leroy,Kristien Roelens,Griet Vandenberghe,M. Christian Urlyss Agossou,Sourou Goufodji Keke,Christiane Tshabu Aguemon,Patricia Soledad Apaza Peralta,Víctor Conde Altamirano,Rosalinda Hernandez Munoz,Vincent Batiene,Kadari Cissé,Henri Gautier Ouedraogo,Cheang Kannitha,Lam Phirun,Tung Rathavy,Elie Simo,Pierre-Marie Tebeu,Emah Irene Yakana,Javier Carvajal,María Fernanda Escobar,P Fernandez,Lotte Berdiin Colmorn,Jens Langhoff -Roos,Wilson Mereci,Paola Vélez,Yasser Salah Eldin,Alaa Sultan,Abdulfetah Abdulkadir Abdosh,Alula M. Teklu,Dawit Worku Kassa,Richard Adanu,Philip Govule,Charles Noora Lwanga,William Enrique Arriaga Romero,María Guadalupe Flores Aceituno,Carolina Bustillo,Rigoberto Castro,Bredy Lara,Vijay Kumar,Vanita Suri,Sonia Trikha,Irene Cetin,Serena Donati,C. Personeni,Guldana Baimussanova,Saule Kabylova,Balgyn Sagyndykova,George Gwako,Alfred Osoti,Zahida Qureshi,Raisa Asylbasheva,Aigul Boobekova,Damira Seksenbaeva,Faysal El Kak,Saad Eddine Itani,Sabina Abou Malham,Meile Minkauskiene,Diana Ramašauskaitė,Owen Chikhwaza,Eddie Malunga,Haoua Dembele,Hamadoun Sangho,Fanta Eliane Zerbo,Filiberto Dávila-Serapio,Nazarea Herrera Maldonado,Juan I. Islas Castañeda,T. Caraus,Ala Curteanu,Victor Petrov,Buyanjargal Yadamsuren,Seded Khishgee,Bat-Erdene Lkhagvasuren,Amina Essolbi,Rachid Moulki,Nafissa Osman,Zara Jaze +97 more
- 09 Jul 2024
Abstract: Pregnancy-related infections are important contributors to maternal sepsis and mortality. We aimed to describe clinical, microbiological characteristics and use of antibiotics by source of infection and country income, among hospitalized women with suspected or confirmed pregnancy-related infections.We used data from WHO Global Maternal Sepsis Study (GLOSS) on maternal infections in hospitalized women, in 52 low-middle- and high-income countries conducted between November 28th and December 4th, 2017, to describe the frequencies and medians of maternal demographic, obstetric, and clinical characteristics and outcomes, methods of infection diagnosis and causative pathogens, of single source pregnancy-related infection, other than breast, and initial use of therapeutic antibiotics. We included 1456 women.We found infections of the genital (n = 745/1456, 51.2%) and the urinary tracts (UTI) (n = 531/1456, 36.5%) to be the most frequent. UTI (n = 339/531, 63.8%) and post-caesarean skin and soft tissue infections (SSTI) (n = 99/180, 55.0%) were the sources with more culture samples taken and microbiological confirmations. Escherichia coli was the major uropathogen (n = 103/118, 87.3%) and Staphylococcus aureus (n = 21/44, 47.7%) was the commonest pathogen in SSTI. For 13.1% (n = 191) of women, antibiotics were not prescribed on the same day of infection suspicion. Cephalosporins (n = 283/531, 53.3%) were the commonest antibiotic class prescribed for UTI, while metronidazole (n = 303/925, 32.8%) was the most prescribed for all other sources. Ceftriaxone with metronidazole was the commonest combination for the genital tract (n = 98/745, 13.2%) and SSTI (n = 22/180, 12.2%). Metronidazole (n = 137/235, 58.3%) was the most prescribed antibiotic in low-income countries while cephalosporins and co-amoxiclav (n = 129/186, 69.4%) were more commonly prescribed in high-income countries.Differences in antibiotics used across countries could be due to availability, local guidelines, prescribing culture, cost, and access to microbiology laboratory, despite having found similar sources and pathogens as previous studies. Better dissemination of recommendations in line with antimicrobial stewardship programmes might improve antibiotic prescription.