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Douglas Altman

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https://www.readbyqxmd.com/read/28729459/enhancing-the-usability-of-systematic-reviews-by-improving-the-consideration-and-description-of-interventions
#1
Tammy C Hoffmann, Andrew D Oxman, John Pa Ioannidis, David Moher, Toby J Lasserson, David I Tovey, Ken Stein, Katy Sutcliffe, Philippe Ravaud, Douglas G Altman, Rafael Perera, Paul Glasziou
No abstract text is available yet for this article.
July 20, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28720117/systematic-review-adherence-to-methodological-or-reporting-quality
#2
Kusala Pussegoda, Lucy Turner, Chantelle Garritty, Alain Mayhew, Becky Skidmore, Adrienne Stevens, Isabelle Boutron, Rafael Sarkis-Onofre, Lise M Bjerre, Asbjørn Hróbjartsson, Douglas G Altman, David Moher
BACKGROUND: Guidelines for assessing methodological and reporting quality of systematic reviews (SRs) were developed to contribute to implementing evidence-based health care and the reduction of research waste. As SRs assessing a cohort of SRs is becoming more prevalent in the literature and with the increased uptake of SR evidence for decision-making, methodological quality and standard of reporting of SRs is of interest. The objective of this study is to evaluate SR adherence to the Quality of Reporting of Meta-analyses (QUOROM) and PRISMA reporting guidelines and the A Measurement Tool to Assess Systematic Reviews (AMSTAR) and Overview Quality Assessment Questionnaire (OQAQ) quality assessment tools as evaluated in methodological overviews...
July 19, 2017: Systematic Reviews
https://www.readbyqxmd.com/read/28718938/quality-control-of-ultrasound-for-fetal-biometry-results-from-the-intergrowth-21-st-project
#3
Angelo Cavallaro, Stephen T Ash, Raffaele Napolitano, Sikolia Wanyonyi, Eric O Ohuma, Malid Molloholli, Joyce Sande, Ippokratis Sarris, Christos Ioannou, Tess Norris, Vera Donadono, Maria Carvalho, Manorama Purwar, Fernando C Barros, Yasmin A Jaffer, Enrico Bertino, Ruyan Pang, Michael G Gravett, Laurent J Salomon, Julia Alison Noble, Douglas G Altman, Aris T Papageorghiou
OBJECTIVES: To assess a comprehensive package of ultrasound quality control in a large multicentre study of fetal growth - the Fetal Growth Longitudinal Study of the INTERGROWTH-21(st) Project. METHODS: We performed quality control (QC) measures on 20,313 ultrasound scan images taken prospectively from 4,321 fetuses at 14-41 weeks' gestation in eight geographical locations. At the time of each ultrasound examination, three fetal biometric variables were measured in triplicate on separately generated images: head circumference (HC), abdominal circumference (AC) and femur length (FL)...
July 18, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28681707/the-comet-handbook-version-1-0
#4
REVIEW
Paula R Williamson, Douglas G Altman, Heather Bagley, Karen L Barnes, Jane M Blazeby, Sara T Brookes, Mike Clarke, Elizabeth Gargon, Sarah Gorst, Nicola Harman, Jamie J Kirkham, Angus McNair, Cecilia A C Prinsen, Jochen Schmitt, Caroline B Terwee, Bridget Young
The selection of appropriate outcomes is crucial when designing clinical trials in order to compare the effects of different interventions directly. For the findings to influence policy and practice, the outcomes need to be relevant and important to key stakeholders including patients and the public, health care professionals and others making decisions about health care. It is now widely acknowledged that insufficient attention has been paid to the choice of outcomes measured in clinical trials. Researchers are increasingly addressing this issue through the development and use of a core outcome set, an agreed standardised collection of outcomes which should be measured and reported, as a minimum, in all trials for a specific clinical area...
June 20, 2017: Trials
https://www.readbyqxmd.com/read/28673865/support-for-reporting-guidelines-in-surgical-journals-needs-improvement-a-systematic-review
#5
REVIEW
Riaz A Agha, Ishani Barai, Shivanchan Rajmohan, Seon Lee, Mohammed O Anwar, Alexander J Fowler, Dennis P Orgill, Douglas G Altman
INTRODUCTION: Evidence-based medicine works best if the evidence is reported well. Past studies have shown reporting quality to be lacking in the field of surgery. Reporting guidelines are an important tool for authors to optimize the reporting of their research. The objective of this study was to analyse the frequency and strength of recommendation for such reporting guidelines within surgical journals. METHODS: A systematic review of the 198 journals within the Journal Citation Report 2014 (surgery category) published by Thomson Reuters was undertaken...
June 30, 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28667088/consort-2010-statement-extension-checklist-for-reporting-within-person-randomised-trials
#6
Nikolaos Pandis, Bryan Chung, Roberta W Scherer, Diana Elbourne, Douglas G Altman
No abstract text is available yet for this article.
June 30, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28654988/consort-extension-for-chinese-herbal-medicine-formulas-2017-recommendations-explanation-and-elaboration-traditional-chinese-version
#7
Chung-Wah Cheng, Tai-Xiang Wu, Hong-Cai Shang, You-Ping Li, Douglas G Altman, David Moher, Zhao-Xiang Bian
Editors' Note: This article is the traditional Chinese version of the CONSORT Extension for Chinese Herbal Medicine Formulas 2017: Recommendations, Explanation, and Elaboration. (Cheng C, Wu T, Shang H, Li, Y, Altman D, Moher D; CONSORT-CHM Formulas 2017 Group. CONSORT Extension for Chinese Herbal Medicine Formulas 2017: Recommendations, Explanation, and Elaboration. Ann Intern Med. 2017;167:112-21. [Epub 27 June 2017]. doi:10.7326/M16-2977).
July 18, 2017: Annals of Internal Medicine
https://www.readbyqxmd.com/read/28654980/consort-extension-for-chinese-herbal-medicine-formulas-2017-recommendations-explanation-and-elaboration
#8
Chung-Wah Cheng, Tai-Xiang Wu, Hong-Cai Shang, You-Ping Li, Douglas G Altman, David Moher, Zhao-Xiang Bian
Chinese herbal medicine (CHM) formulas are the major components of traditional Chinese medicine (TCM) interventions. The general reporting quality of randomized controlled trials (RCTs) of CHM formulas is disappointing, although CONSORT (Consolidated Standards of Reporting Trials) Statement extensions for herbal medicinal interventions and acupuncture interventions are available. A group of TCM clinical experts, methodologists, epidemiologists, and editors has developed this CONSORT Extension for CHM Formulas (CONSORT-CHM Formulas 2017) through a comprehensive process, including publication of the draft version, solicitation of comments, revision, and finalization...
June 27, 2017: Annals of Internal Medicine
https://www.readbyqxmd.com/read/28654957/consort-extension-for-chinese-herbal-medicine-formulas-2017-recommendations-explanation-and-elaboration-simplified-chinese-version
#9
Chung-Wah Cheng, Tai-Xiang Wu, Hong-Cai Shang, You-Ping Li, Douglas G Altman, David Moher, Zhao-Xiang Bian
Editors' Note: This article is the simplified Chinese version of the CONSORT Extension for Chinese Herbal Medicine Formulas 2017: Recommendations, Explanation, and Elaboration. (Cheng C, Wu T, Shang H, Li, Y, Altman D, Moher D; CONSORT-CHM Formulas 2017 Group. CONSORT Extension for Chinese Herbal Medicine Formulas 2017: Recommendations, Explanation, and Elaboration. Ann Intern Med. 2017;167:112-21. [Epub 27 June 2017]. doi:10.7326/M16-2977).
July 18, 2017: Annals of Internal Medicine
https://www.readbyqxmd.com/read/28632286/consort-extension-for-chinese-herbal-medicine-formulas-2017-recommendations-explanation-and-elaboration-traditional-chinese-version
#10
Chung-Wah Cheng, Tai-Xiang Wu, Hong-Cai Shang, You-Ping Li, Douglas G Altman, David Moher, Zhao-Xiang Bian
Editors' Note: This article is the traditional Chinese version of the CONSORT Extension for Chinese Herbal Medicine Formulas 2017: Recommendations, Explanation, and Elaboration. (Cheng C, Wu T, Shang H, Li, Y, Altman D, Moher D; CONSORT-CHM Formulas 2017 Group. CONSORT Extension for Chinese Herbal Medicine Formulas 2017: Recommendations, Explanation, and Elaboration. Ann Intern Med. 2017. [Epub 27 June 2017]. doi:10.7326/M16-2977).
June 27, 2017: Annals of Internal Medicine
https://www.readbyqxmd.com/read/28632282/consort-extension-for-chinese-herbal-medicine-formulas-2017-recommendations-explanation-and-elaboration
#11
Chung-Wah Cheng, Tai-Xiang Wu, Hong-Cai Shang, You-Ping Li, Douglas G Altman, David Moher, Zhao-Xiang Bian
Chinese herbal medicine (CHM) formulas are the major components of traditional Chinese medicine (TCM) interventions. The general reporting quality of randomized controlled trials (RCTs) of CHM formulas is disappointing, although CONSORT (Consolidated Standards of Reporting Trials) Statement extensions for herbal medicinal interventions and acupuncture interventions are available. A group of TCM clinical experts, methodologists, epidemiologists, and editors has developed this CONSORT Extension for CHM Formulas (CONSORT-CHM Formulas 2017) through a comprehensive process, including publication of the draft version, solicitation of comments, revision, and finalization...
June 27, 2017: Annals of Internal Medicine
https://www.readbyqxmd.com/read/28632281/consort-extension-for-chinese-herbal-medicine-formulas-2017-recommendations-explanation-and-elaboration-simplified-chinese-version
#12
Chung-Wah Cheng, Tai-Xiang Wu, Hong-Cai Shang, You-Ping Li, Douglas G Altman, David Moher, Zhao-Xiang Bian
Editors' Note: This article is the simplified Chinese version of the CONSORT Extension for Chinese Herbal Medicine Formulas 2017: Recommendations, Explanation, and Elaboration. (Cheng C, Wu T, Shang H, Li, Y, Altman D, Moher D; CONSORT-CHM Formulas 2017 Group. CONSORT Extension for Chinese Herbal Medicine Formulas 2017: Recommendations, Explanation, and Elaboration. Ann Intern Med. 2017. [Epub 27 June 2017]. doi:10.7326/M16-2977).
June 27, 2017: Annals of Internal Medicine
https://www.readbyqxmd.com/read/28630973/consort-statement-for-randomized-trials-of-nonpharmacologic-treatments-a-2017-update-and-a-consort-extension-for-nonpharmacologic-trial-abstracts
#13
Isabelle Boutron, Douglas G Altman, David Moher, Kenneth F Schulz, Philippe Ravaud
Incomplete and inadequate reporting is an avoidable waste that reduces the usefulness of research. The CONSORT (Consolidated Standards of Reporting Trials) Statement is an evidence-based reporting guideline that aims to improve research transparency and reduce waste. In 2008, the CONSORT Group developed an extension to the original statement that addressed methodological issues specific to trials of nonpharmacologic treatments (NPTs), such as surgery, rehabilitation, or psychotherapy. This article describes an update of that extension and presents an extension for reporting abstracts of NPT trials...
July 4, 2017: Annals of Internal Medicine
https://www.readbyqxmd.com/read/28629396/identifying-approaches-for-assessing-methodological-and-reporting-quality-of-systematic-reviews-a-descriptive-study
#14
Kusala Pussegoda, Lucy Turner, Chantelle Garritty, Alain Mayhew, Becky Skidmore, Adrienne Stevens, Isabelle Boutron, Rafael Sarkis-Onofre, Lise M Bjerre, Asbjørn Hróbjartsson, Douglas G Altman, David Moher
BACKGROUND: The methodological quality and completeness of reporting of the systematic reviews (SRs) is fundamental to optimal implementation of evidence-based health care and the reduction of research waste. Methods exist to appraise SRs yet little is known about how they are used in SRs or where there are potential gaps in research best-practice guidance materials. The aims of this study are to identify reports assessing the methodological quality (MQ) and/or reporting quality (RQ) of a cohort of SRs and to assess their number, general characteristics, and approaches to 'quality' assessment over time...
June 19, 2017: Systematic Reviews
https://www.readbyqxmd.com/read/28614415/did-the-reporting-of-prognostic-studies-of-tumour-markers-improve-since-the-introduction-of-remark-guideline-a-comparison-of-reporting-in-published-articles
#15
Peggy Sekula, Susan Mallett, Douglas G Altman, Willi Sauerbrei
Although biomarkers are perceived as highly relevant for future clinical practice, few biomarkers reach clinical utility for several reasons. Among them, poor reporting of studies is one of the major problems. To aid improvement, reporting guidelines like REMARK for tumour marker prognostic (TMP) studies were introduced several years ago. The aims of this project were to assess whether reporting quality of TMP-studies improved in comparison to a previously conducted study assessing reporting quality of TMP-studies (PRE-study) and to assess whether articles citing REMARK (citing group) are better reported, in comparison to articles not citing REMARK (not-citing group)...
2017: PloS One
https://www.readbyqxmd.com/read/28596181/evolution-of-poor-reporting-and-inadequate-methods-over-time-in-20%C3%A2-920-randomised-controlled-trials-included-in-cochrane-reviews-research-on-research-study
#16
Agnes Dechartres, Ludovic Trinquart, Ignacio Atal, David Moher, Kay Dickersin, Isabelle Boutron, Elodie Perrodeau, Douglas G Altman, Philippe Ravaud
Objective To examine how poor reporting and inadequate methods for key methodological features in randomised controlled trials (RCTs) have changed over the past three decades.Design Mapping of trials included in Cochrane reviews.Data sources Data from RCTs included in all Cochrane reviews published between March 2011 and September 2014 reporting an evaluation of the Cochrane risk of bias items: sequence generation, allocation concealment, blinding, and incomplete outcome data.Data extraction For each RCT, we extracted consensus on risk of bias made by the review authors and identified the primary reference to extract publication year and journal...
June 8, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28588121/assessing-agreement-between-methods-of-measurement
#17
Douglas G Altman, J Martin Bland
No abstract text is available yet for this article.
June 6, 2017: Clinical Chemistry
https://www.readbyqxmd.com/read/28571655/a-novel-approach-to-predict-24-hour-energy-expenditure-based-on-hematologic-volumes-development-and-validation-of-models-comparable-to-mifflin-st-jeor-and-body-composition-models
#18
Douglas C Chang, Paolo Piaggi, Jonathan Krakoff
BACKGROUND: Accurate prediction of 24-hour energy expenditure (24EE) relies on knowing body composition, in particular fat-free mass (FFM), the largest determinant of 24EE. FFM is closely correlated with hematologic volumes: blood volume (BV), red cell mass (RCM), and plasma volume (PV). However, it is unknown whether predicted hematologic volumes, based on easily collected variables, can improve 24EE prediction. OBJECTIVE: The aim was to develop and validate equations to predict 24EE based on predicted BV, RCM, and PV and to compare the accuracy and agreement with models developed from FFM and with the Mifflin-St Jeor equation, which is recommended for clinical use by the Academy of Nutrition and Dietetics...
May 29, 2017: Journal of the Academy of Nutrition and Dietetics
https://www.readbyqxmd.com/read/28570492/estimation-of-peak-muscle-power-from-a-countermovement-vertical-jump-in-children-and-adolescents
#19
Alejandro Gomez-Bruton, Leigh Gabel, Lindsay Nettlefold, Heather Macdonald, Douglas Race, Heather McKay
Several equations to predict muscle power (MP) from vertical jump height (VJH) have been developed in adults. However, few have been derived in children. We therefore aimed to: 1) evaluate the validity of existing MP estimation equations from a vertical countermovement jump (CMJ) in children and adolescents, and 2) develop and validate a new MP estimation equation for use in children and adolescents. We measured peak MP (Watts) and VJH (cm) during a CMJ using a force platform in 249 children and adolescents (9-17 years; 119 boys)...
May 30, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28566338/associations-between-adding-a-radial-artery-graft-to-single-and-bilateral-internal-thoracic-artery-grafts-and-outcomes-insights-from-the-arterial-revascularization-trial
#20
David P Taggart, Douglas G Altman, Marcus D Flather, Stephen Gerry, Alastair M Gray, Belinda Lees, Umberto Benedetto
Background -Whether the use of the radial artery (RA) can improve clinical outcomes in coronary artery bypass graft (CABG) surgery remains unclear. The Arterial Revascularization Trial (ART) was designed to compare survival after bilateral internal thoracic artery (BITA) over single left internal thoracic artery (SITA). In the ART, a large proportion of patients (~20%) also received a RA graft instead of a saphenous vein graft (SVG). We aimed to investigate the associations between using the RA instead of SVG to supplement SITA or BITA grafts and outcomes by performing a post-hoc analysis of the ART...
May 31, 2017: Circulation
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