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https://www.readbyqxmd.com/read/28580651/data-fabrication-and-other-reasons-for-non-random-sampling-in-5087-randomised-controlled-trials-in-anaesthetic-and-general-medical-journals
#1
J B Carlisle
Randomised, controlled trials have been retracted after publication because of data fabrication and inadequate ethical approval. Fabricated data have included baseline variables, for instance, age, height or weight. Statistical tests can determine the probability of the distribution of means, given their standard deviation and the number of participants in each group. Randomised, controlled trials have been retracted after the data distributions have been calculated as improbable. Most retracted trials have been written by anaesthetists and published by specialist anaesthetic journals...
June 4, 2017: Anaesthesia
https://www.readbyqxmd.com/read/28570573/evidence-of-selective-reporting-bias-in-hematology-journals-a-systematic-review
#2
Cole Wayant, Caleb Scheckel, Chandler Hicks, Timothy Nissen, Linda Leduc, Mousumi Som, Matt Vassar
INTRODUCTION: Selective reporting bias occurs when chance or selective outcome reporting rather than the intervention contributes to group differences. The prevailing concern about selective reporting bias is the possibility of results being modified towards specific conclusions. In this study, we evaluate randomized controlled trials (RCTs) published in hematology journals, a group in which selective outcome reporting has not yet been explored. METHODS: Our primary goal was to examine discrepancies between the reported primary and secondary outcomes in registered and published RCTs concerning hematological malignancies reported in hematology journals with a high impact factor...
2017: PloS One
https://www.readbyqxmd.com/read/28496225/altmetric-analysis-of-2015-dental-literature-a-cross-sectional-survey
#3
J Kolahi, P Iranmanesh, S Khazaei
Introduction To report and analyse Altmetric data of all dental articles and journals in 2015.Methods To identify all 2015 dental articles, PubMed was searched via Altmetric platform using the following query: ("2015/1/1"[PDAT]: "2015/12/31"[PDAT]) AND jsubsetd[text] NOT 2016[PDAT] on November 12, 2016. Altmetric data of all 2015 dental articles and journals were extracted and analysed by Microsoft Office Excel 2016 using descriptive statistics, graphs and trend-line analysis. To find the most important and influential Altmetric factors, multi-layered perceptron artificial neural network was employed using SPSS 22...
May 12, 2017: British Dental Journal
https://www.readbyqxmd.com/read/28493948/gender-bias-in-clinical-case-reports-a-cross-sectional-study-of-the-big-five-medical-journals
#4
Pascale Allotey, Caitlin Allotey-Reidpath, Daniel D Reidpath
BACKGROUND: Gender bias in medical journals can affect the science and the benefit to patients. It has never been investigated in clinical case reports. The oversight is important because of the role clinical case reports play in hypothesis generation and medical education. We investigated contemporary gender bias in case reports for the highest ranked journals in general and internal medicine. METHODS: PubMed case reports data from 2011 to 2016 were extracted for the Annals of Internal Medicine, British Medical Journal, the Journal of the American Medical Association, The Lancet, and New England Journal of Medicine...
2017: PloS One
https://www.readbyqxmd.com/read/28487006/cost-effectiveness-of-salt-reduction-to-prevent-hypertension-and-cvd-a-systematic-review
#5
Elisabeth Schorling, Dea Niebuhr, Anja Kroke
OBJECTIVE: To analyse and compare the cost-effectiveness of different interventions to reduce salt consumption. DESIGN: A systematic review of published cost-effectiveness analyses (CEA) and cost-utility analyses (CUA) was undertaken in the databases EMBASE, MEDLINE (PubMed), Cochrane and others until July 2016. Study selection was limited to CEA and CUA conducted in member countries of the Organisation for Economic Co-operation and Development (OECD) in English, German or French, without time limit...
May 10, 2017: Public Health Nutrition
https://www.readbyqxmd.com/read/28463959/pre-diagnosis-diet-and-survival-after-a-diagnosis-of-ovarian-cancer
#6
Mary C Playdon, Christina M Nagle, Torukiri I Ibiebele, Leah M Ferrucci, Melinda M Protani, Jonathan Carter, Simon E Hyde, Deborah Neesham, James L Nicklin, Susan T Mayne, Penelope M Webb
BACKGROUND: The relationship between diet and survival after ovarian cancer diagnosis is unclear as a result of a limited number of studies and inconsistent findings. METHODS: We examined the association between pre-diagnostic diet and overall survival in a population-based cohort (n=811) of Australian women diagnosed with invasive epithelial ovarian cancer between 2002 and 2005. Diet was measured by validated food frequency questionnaire. Deaths were ascertained up to 31 August 2014 via medical record review and Australian National Death Index linkage...
June 6, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28441385/preoperative-clinical-pathway-of-breast-cancer-patients-determinants-of-compliance-with-eusoma-quality-indicators
#7
Delphine Héquet, Cyrille Huchon, Sandrine Baffert, Séverine Alran, Fabien Reyal, Thuy Nguyen, Alix Combes, Caroline Trichot, Karine Alves, Hélène Berseneff, Roman Rouzier
BACKGROUND: The European Society of Breast Cancer Specialists (EUSOMA) has defined quality indicators for breast cancer (BC). The aim of this study was to describe the preoperative clinical pathway of breast cancer patients and evaluate the determinants of compliance with EUSOMA quality indicators in the Optisoins01 cohort. METHODS: Optisoins01 is a prospective, multicentric study. Data from operable BC patients were collected, including results from before surgery to 1 year follow-up...
May 23, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28367203/the-50-most-cited-articles-in-gastroenterology-and-hepatology-from-mainland-china
#8
Sun-Kuan Hu, Jie Huang, Wan-Dong Hong, Xiao-Jing Du, Rong Jin, Tie-Su Lin
OBJECTIVE: To identify and analyze the 50 most-cited gastroenterology and hepatology articles originating from mainland China. METHODS: We utilized the 2015 edition of Journal Citation Reports and PubMed to determine the 50 most-cited gastroenterology and hepatology articles from 75 professional journals and four leading journals in clinical medicine, which are The New England Journal of Medicine, The Lancet, The Journal of the American Medical Association, and The British Medical Journal...
January 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/28350790/use-of-common-analgesic-medications-and-ovarian-cancer-survival-results-from-a-pooled-analysis-in-the-ovarian-cancer-association-consortium
#9
Suzanne C Dixon, Christina M Nagle, Nicolas Wentzensen, Britton Trabert, Alicia Beeghly-Fadiel, Joellen M Schildkraut, Kirsten B Moysich, Anna deFazio, Harvey A Risch, Mary Anne Rossing, Jennifer A Doherty, Kristine G Wicklund, Marc T Goodman, Francesmary Modugno, Roberta B Ness, Robert P Edwards, Allan Jensen, Susanne K Kjær, Estrid Høgdall, Andrew Berchuck, Daniel W Cramer, Kathryn L Terry, Elizabeth M Poole, Elisa V Bandera, Lisa E Paddock, Hoda Anton-Culver, Argyrios Ziogas, Usha Menon, Simon A Gayther, Susan J Ramus, Aleksandra Gentry-Maharaj, Celeste Leigh Pearce, Anna H Wu, Malcolm C Pike, Penelope M Webb
BACKGROUND: Nonsteroidal anti-inflammatory drugs (NSAIDs) have been associated with improved survival in some cancers, but evidence for ovarian cancer is limited. METHODS: Pooling individual-level data from 12 Ovarian Cancer Association Consortium studies, we evaluated the association between self-reported, pre-diagnosis use of common analgesics and overall/progression-free/disease-specific survival among 7694 women with invasive epithelial ovarian cancer (4273 deaths)...
April 25, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28344712/canadian-medical-education-journal-survey-evaluations-of-university-of-british-columbia-residents-education-and-attitudes-regarding-palliative-care-and-physician-assisted-death
#10
David Spicer, Sonia Paul, Tom Tang, Charlie Chen, Jocelyn Chase
BACKGROUND: Little prior research has been conducted regarding resident physicians' opinions on the subject of Physician Assisted Death (PAD), despite past surveys ascertaining the attitudes of practicing physicians towards PAD in Canada. We solicited British Columbia residents' opinions on the amount of education they receive about palliative care and physician assisted death, and their attitudes towards the implementation of PAD. METHODS: We conducted a cross sectional, anonymous online survey with the resident physicians of British Columbia, Canada...
February 2017: Canadian Medical Education Journal
https://www.readbyqxmd.com/read/28267710/dasatinib-synergises-with-irinotecan-to-suppress-hepatocellular-carcinoma-via-inhibiting-the-protein-synthesis-of-plk1
#11
Li Xu, Yuanrun Zhu, Jinjin Shao, Min Chen, Hao Yan, Guanqun Li, Yi Zhu, Zhifei Xu, Bo Yang, Peihua Luo, Qiaojun He
BACKGROUND: Hepatocellular carcinoma (HCC) is one of the most common types of malignant tumour and has poor prognosis. Currently, systematic chemotherapy is the only approach to prolong survival. Thus the development of new treatment regimens is urgently needed to improve the therapeutic efficacy. Our study intended to assess the combination of dasatinib and irinotecan against HCC and made an effort to develop a potential medical choice for advanced HCC patients. METHODS: We used SRB colorimetric assay and clonogenic assay to assess antitumour effect in vitro and HCC xenograft model to assess antitumour effect in vivo...
April 11, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28267708/study-designs-may-influence-results-the-problems-with-questionnaire-based-case-control-studies-on-the-epidemiology-of-glioma
#12
REVIEW
Christoffer Johansen, Joachim Schüz, Anne-Marie Serena Andreasen, Susanne Oksbjerg Dalton
Glioma is a rare brain tumour with a very poor prognosis and the search for modifiable factors is intense. We reviewed the literature concerning risk factors for glioma obtained in case-control designed epidemiological studies in order to discuss the influence of this methodology on the observed results. When reviewing the association between three exposures, medical radiation, exogenous hormone use and allergy, we critically appraised the evidence from both case-control and cohort studies. For medical radiation and hormone replacement therapy (HRT), questionnaire-based case-control studies appeared to show an inverse association, whereas nested case-control and cohort studies showed no association...
March 28, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28253424/botulinum-toxin-for-the-treatment-of-strabismus
#13
REVIEW
Fiona J Rowe, Carmel P Noonan
BACKGROUND: The use of botulinum toxin as an investigative and treatment modality for strabismus is well reported in the medical literature. However, it is unclear how effective it is in comparison to other treatment options for strabismus. OBJECTIVES: The primary objective was to examine the efficacy of botulinum toxin therapy in the treatment of strabismus compared with alternative conservative or surgical treatment options. This review sought to ascertain those types of strabismus that particularly benefit from the use of botulinum toxin as a treatment option (such as small angle strabismus or strabismus with binocular potential, i...
March 2, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28214254/normothermia-in-arthroplasty
#14
REVIEW
Mark W Allen, David J Jacofsky
BACKGROUND: Since the initial design of surgical theatres, the thermal environment of the operating suite itself has been an area of concern and robust discussion. In the 1950s, correspondence in the British Medical Journal discussed the most suitable design for a surgeon's cap to prevent sweat from dripping onto the surgical field. These deliberations stimulated questions about the effects of sweat-provoking environments on the efficiency of the surgical team, not to mention the effects on the patient...
January 17, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28208158/epidemiologic-factors-that-predict-long-term-survival-following-a-diagnosis-of-epithelial-ovarian-cancer
#15
Shana J Kim, Barry Rosen, Isabel Fan, Anna Ivanova, John R McLaughlin, Harvey Risch, Steven A Narod, Joanne Kotsopoulos
BACKGROUND: Various epidemiologic factors have been shown to influence the risk of ovarian cancer development. Given the high fatality associated with this disease, it is of interest to evaluate the association of prediagnostic hormonal, reproductive, and lifestyle exposures with ovarian cancer-specific survival. METHODS: We included 1421 patients with invasive epithelial ovarian cancer diagnosed in Ontario, Canada. Clinical information was obtained from medical records and prediagnostic exposure information was collected by telephone interview...
March 28, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28110290/guided-and-unguided-internet-based-vestibular-rehabilitation-versus-usual-care-for-dizzy-adults-of-50%C3%A2-years-and-older-a-protocol-for-a-three-armed-randomised-trial
#16
Vincent A van Vugt, Johannes C van der Wouden, Judith E Bosmans, Martin Smalbrugge, Willianne van Diest, Rosie Essery, Lucy Yardley, Henriëtte E van der Horst, Otto R Maarsingh
INTRODUCTION: Dizziness is a common symptom in general practice with a high prevalence among older adults. The most common cause of dizziness in general practice is peripheral vestibular disease. Vestibular rehabilitation (VR) is a safe and effective treatment for peripheral vestibular disease that entails specific exercises to maximise the central nervous system compensation for the effects of vestibular pathology. An internet-based VR intervention has recently been shown to be safe and effective...
January 20, 2017: BMJ Open
https://www.readbyqxmd.com/read/28105894/clinical-prediction-and-the-idea-of-a-population
#17
David Armstrong
Using an analysis of the British Medical Journal over the past 170 years, this article describes how changes in the idea of a population have informed new technologies of medical prediction. These approaches have largely replaced older ideas of clinical prognosis based on understanding the natural histories of the underlying pathologies. The 19(th)-century idea of a population, which provided a denominator for medical events such as births and deaths, was constrained in its predictive power by its method of enumerating individual bodies...
January 1, 2017: Social Studies of Science
https://www.readbyqxmd.com/read/28011365/prescription-hypnotics-in-the-news-a-study-of-uk-audiences
#18
Jonathan Gabe, Simon J Williams, Catherine M Coveney
In 2012 the UK media reported the results of a paper in the British Medical Journal Open, including the finding that hypnotics increase the risk of 'premature death'. Taking this media coverage as a case study, the paper explores UK people's responses and assesses the implications for the debate about the (de)pharmaceuticalisation of sleep. Two hundred and fifty one posts to the websites of 6 UK newspapers were analysed thematically, along with 12 focus group discussions (n = 51) of newspaper coverage from one UK newspaper...
February 2017: Social Science & Medicine
https://www.readbyqxmd.com/read/27875516/trastuzumab-associated-cardiac-events-in-the-persephone-trial
#19
RANDOMIZED CONTROLLED TRIAL
Helena M Earl, Anne-Laure Vallier, Janet Dunn, Shrushma Loi, Emma Ogburn, Karen McAdam, Luke Hughes-Davies, Adrian Harnett, Jean Abraham, Andrew Wardley, David A Cameron, David Miles, Ioannis Gounaris, Chris Plummer, Louise Hiller
BACKGROUND: We report cardiac events in the Persephone trial which compares 6-12 months of adjuvant trastuzumab in women with confirmed HER2-positive, early-stage breast cancer. METHODS: Clinical cardiac events were defined as any of the following: symptoms and/or signs of congestive heart failure (CHF) and new or altered CHF medication. In addition, left ventricular ejection fraction (LVEF) was measured at baseline and then 3 monthly for 12 months. RESULTS: A total of 2500 patients, aged 22-82, were included: 1251 randomised to 12 months and 1249 to 6 months of trastuzumab treatment...
December 6, 2016: British Journal of Cancer
https://www.readbyqxmd.com/read/27811854/no-association-of-cpg-island-methylator-phenotype-and-colorectal-cancer-survival-population-based-study
#20
Min Jia, Lina Jansen, Viola Walter, Katrin Tagscherer, Wilfried Roth, Esther Herpel, Matthias Kloor, Hendrik Bläker, Jenny Chang-Claude, Hermann Brenner, Michael Hoffmeister
BACKGROUND: Previous studies have shown adverse effects of CpG island methylator phenotype (CIMP) on colorectal cancer (CRC) prognosis. However, sample sizes were often limited and only few studies were able to adjust for relevant molecular features associated with CIMP. The aim of this study was to investigate the impact of CIMP on CRC survival in a large population-based study with comprehensive adjustment. METHODS: The CIMP status and other molecular tumour features were analysed in 1385 CRC patients diagnosed between 2003 and 2010...
November 22, 2016: British Journal of Cancer
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