keyword
MENU ▼
Read by QxMD icon Read
search

Statistical mistake

keyword
https://www.readbyqxmd.com/read/27904419/reporting-statistical-results-in-medical-journals
#1
EDITORIAL
Wan Nor Arifin, Abdullah Sarimah, Bachok Norsa'adah, Yaacob Najib Majdi, Ab Hamid Siti-Azrin, Musa Kamarul Imran, Abd Aziz Aniza, Lin Naing
Statistical editors of the Malaysian Journal of Medical Sciences (MJMS) must go through many submitted manuscripts, focusing on the statistical aspect of the manuscripts. However, the editors notice myriad styles of reporting the statistical results, which are not standardised among the authors. This could be due to the lack of clear written instructions on reporting statistics in the guidelines for authors. The aim of this editorial is to briefly outline reporting methods for several important and common statistical results...
September 2016: Malaysian Journal of Medical Sciences: MJMS
https://www.readbyqxmd.com/read/27879038/detecting-and-avoiding-likely-false-positive-findings%C3%A2-%C3%A2-a-practical-guide
#2
Wolfgang Forstmeier, Eric-Jan Wagenmakers, Timothy H Parker
Recently there has been a growing concern that many published research findings do not hold up in attempts to replicate them. We argue that this problem may originate from a culture of 'you can publish if you found a significant effect'. This culture creates a systematic bias against the null hypothesis which renders meta-analyses questionable and may even lead to a situation where hypotheses become difficult to falsify. In order to pinpoint the sources of error and possible solutions, we review current scientific practices with regard to their effect on the probability of drawing a false-positive conclusion...
November 23, 2016: Biological Reviews of the Cambridge Philosophical Society
https://www.readbyqxmd.com/read/27866835/over-using-chemotherapy-in-the-adjuvant-setting
#3
Giuseppe Curigliano, Carmen Criscitiello, Angela Esposito, Giancarlo Pruneri
Avoidance of unnecessary or ineffective treatment should be one of the main goals in adjuvant breast oncology today. Unfortunately, both patients and doctors hunt for tiny statistical differences in survival curves. This search could not only lead to an oncological approach of unlimited addition that we will not be able to afford, but would also end inevitably in indeterminate overtreatment with substantial risks of unexpected toxic effects eating away whatever progress we might make. "Do not harm" remains the main principle in medicine...
November 17, 2016: Breast: Official Journal of the European Society of Mastology
https://www.readbyqxmd.com/read/27856048/sex-determination-using-the-dsp-probabilistic-sex-diagnosis-method-on-the-coxal-bone-efficiency-of-method-according-to-number-of-available-variables
#4
Gérald Quatrehomme, Irina Radoman, Luísa Nogueira, Philippe du Jardin, Véronique Alunni
The DSP method (probabilistic sex diagnosis) was applied to100 contemporary coxal bones from elderly individuals of the South of France. Ten variables with a posterior probability greater or equal to a 0.95 threshold were used. There was no statistical difference between right side and left side measurements. There was no mistake for sex assignment but the level of indetermination varied a great deal. It was higher in females than in males. The best combinations were obtained when using all 10 variables, some combination of 9 variables (all except SS or SIS or VEAC) or the first 8 variables...
November 1, 2016: Forensic Science International
https://www.readbyqxmd.com/read/27847495/associations-between-relational-pronoun-usage-and-the-quality-of-early-family-interactions
#5
Sarah Galdiolo, Isabelle Roskam, Lesley L Verhofstadt, Jan De Mol, Laura Dewinne, Sylvain Vandaudenard
Our study examined the relationships of relational pronouns used in parental conversation to the quality of early family interactions, as indexed by Family Alliance (FA). We hypothesized that more positive family interactions were associated with the use of more we-pronouns (e.g., we, us, our; we-ness) and fewer I- and you-pronouns (e.g., I, me, you, your; separateness) by both mothers and fathers. Our statistical model using a multilevel modeling framework and two levels of analysis (i.e., a couple level and an individual level) was tested on 47 non-referred families (n = 31 primiparous families; child's age, M = 15...
2016: Frontiers in Psychology
https://www.readbyqxmd.com/read/27836938/statistics-for-sleep-and-biological-rhythms-research-from-distributions-and-displays-to-correlation-and-causation
#6
Matt T Bianchi, Andrew J K Phillips, Wei Wang, Elizabeth B Klerman
The Journal of Biological Rhythms will be publishing articles exploring analysis and statistical topics relevant to researchers in biological rhythms and sleep research. The goal is to provide an overview of the most common issues that arise in the analysis and interpretation of data in these fields. By using case examples and highlighting the pearls and pitfalls of statistical inference, the authors will identify and explain ways in which experimental scientists can avoid common analytical and statistical mistakes and use appropriate analytical and statistical methods in their research...
October 24, 2016: Journal of Biological Rhythms
https://www.readbyqxmd.com/read/27811577/exploring-the-validity-of-developing-an-interdisciplinarity-score-of-a-patient-s-needs-care-coordination-patient-complexity-and-patient-safety-indicators
#7
Ashley Hodgson, Lacey Etzkorn, Alexander Everhart, Nicholas Nooney, Jessica Bestrashniy
Despite the Affordable Care Act's push to improve the coordination of care for patients with multiple chronic conditions, most measures of coordination quality focus on a specific moment in the care process (e.g., medication errors or transfer between facilities), rather than patient outcomes. One possible supplementary way of measuring the care coordination quality of a facility would be to identify the patients needing the most coordination, and to look at outcomes for that group. This paper lays the groundwork for a new measure of care coordination quality by outlining a conceptual framework that considers the interaction between a patient's interdisciplinarity, biological susceptibility, and procedural intensity...
November 1, 2016: Journal for Healthcare Quality: Official Publication of the National Association for Healthcare Quality
https://www.readbyqxmd.com/read/27805740/work-related-fear-and-the-threats-causing-fear-among-emergency-department-nursing-staff-and-physicians-in-finland
#8
Riitta Mikkola, Heini Huhtala, Eija Paavilainen
AIMS AND OBJECTIVE: The objective of this research was to describe fear, the threats causing fear and the occurrence of fear among emergency department nursing staff and physicians. BACKGROUND: The emergency department is a challenging workplace where the staff is often confronted by factors that cause fear. DESIGN: A cross-sectional study. METHODS: A survey was conducted in 16 hospitals (N = 544). Nurses, practical nurses, orderlies and physicians from those hospitals participated in the survey...
November 2, 2016: Journal of Clinical Nursing
https://www.readbyqxmd.com/read/27764123/the-importance-of-medical-students-attitudes-regarding-cognitive-competence-for-teaching-applied-statistics-multi-site-study-and-meta-analysis
#9
Natasa M Milic, Srdjan Masic, Jelena Milin-Lazovic, Goran Trajkovic, Zoran Bukumiric, Marko Savic, Nikola V Milic, Andja Cirkovic, Milan Gajic, Mirjana Kostic, Aleksandra Ilic, Dejana Stanisavljevic
BACKGROUND: The scientific community increasingly is recognizing the need to bolster standards of data analysis given the widespread concern that basic mistakes in data analysis are contributing to the irreproducibility of many published research findings. The aim of this study was to investigate students' attitudes towards statistics within a multi-site medical educational context, monitor their changes and impact on student achievement. In addition, we performed a systematic review to better support our future pedagogical decisions in teaching applied statistics to medical students...
2016: PloS One
https://www.readbyqxmd.com/read/27757060/omics-approaches-to-individual-variation-modeling-networks-and-the-virtual-patient
#10
Hans Lehrach
Every human is unique. We differ in our genomes, environment, behavior, disease history, and past and current medical treatment-a complex catalog of differences that often leads to variations in the way each of us responds to a particular therapy. We argue here that true personalization of drug therapies will rely on "virtual patient" models based on a detailed characterization of the individual patient by molecular, imaging, and sensor techniques. The models will be based, wherever possible, on the molecular mechanisms of disease processes and drug action but can also expand to hybrid models including statistics/machine learning/artificial intelligence-based elements trained on available data to address therapeutic areas or therapies for which insufficient information on mechanisms is available...
September 2016: Dialogues in Clinical Neuroscience
https://www.readbyqxmd.com/read/27661007/strategies-for-power-calculations-in-predictive-biomarker-studies-in-survival-data
#11
Dung-Tsa Chen, Po-Yu Huang, Hui-Yi Lin, Eric B Haura, Scott J Antonia, W Douglas Cress, Jhanelle E Gray
PURPOSE: Biomarkers and genomic signatures represent potentially predictive tools for precision medicine. Validation of predictive biomarkers in prospective or retrospective studies requires statistical justification of power and sample size. However, the design of these studies is complex and the statistical methods and associated software are limited, especially in survival data. Herein, we address common statistical design issues relevant to these two types of studies and provide guidance and a general template for analysis...
September 19, 2016: Oncotarget
https://www.readbyqxmd.com/read/27611098/authentication-of-schisandra-chinensis-and-schisandra-sphenanthera-in-chinese-patent-medicines
#12
Pin Jiang, Yan Lu, Daofeng Chen
Authentication of species is crucial for ensuring the safety and efficacy of herbal medicines. The fruits of Schisandra chinensis and S. sphenanthera have been used for the same traditional Chinese drug, Wuweizi, but are found to be quite different according to their constituents, pharmacological effects, and qualities. These two fruits have been recorded as Schisandrae Chinensis Fructus (Wuweizi) and Schisandrae Sphenantherae Fructus (Nan-wuweizi), respectively, by Chinese Pharmacopoeia, 2000 edition. However, Nan-wuweizi is often found to be taken as Wuweizi in some Chinese patent drugs intentionally or by mistake because of its lower price and similar characteristics to Wuweizi...
November 30, 2016: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/27606051/does-sadness-impair-color-perception-flawed-evidence-and-faulty-methods
#13
Alex O Holcombe, Nicholas J L Brown, Patrick T Goodbourn, Alexander Etz, Sebastian Geukes
In their 2015 paper, Thorstenson, Pazda, and Elliot offered evidence from two experiments that perception of colors on the blue-yellow axis was impaired if the participants had watched a sad movie clip, compared to participants who watched clips designed to induce a happy or neutral mood. Subsequently, these authors retracted their article, citing a mistake in their statistical analyses and a problem with the data in one of their experiments. Here, we discuss a number of other methodological problems with Thorstenson et al...
2016: F1000Research
https://www.readbyqxmd.com/read/27582679/the-effectiveness-of-a-weight-loss-diet-in-a-group-of-overweight-and-obese-women-with-recurrent-depressive-disorders
#14
Ewa Stefańska, Agnieszka Wendołowicz, Beata Konarzewska, Lucyna Ostrowska
INTRODUCTION: The research conducted among patients with depression shows that such patients commit a range of nutritional mistakes which may predispose them to the development of many diseases including obesity and its complications. AIM OF THE STUDY: Aim of the study was to assess the effectiveness of a balanced weight loss diet in a group of women with recurrent depressive disorders. MATERIAL AND METHODS: 60 women suffering from depression, aged 41-64 (mean 52 ±5...
June 2016: Przeglad Menopauzalny, Menopause Review
https://www.readbyqxmd.com/read/27570501/annotating-patient-clinical-records-with-syntactic-chunks-and-named-entities-the-harvey-corpus
#15
Aleksandar Savkov, John Carroll, Rob Koeling, Jackie Cassell
The free text notes typed by physicians during patient consultations contain valuable information for the study of disease and treatment. These notes are difficult to process by existing natural language analysis tools since they are highly telegraphic (omitting many words), and contain many spelling mistakes, inconsistencies in punctuation, and non-standard word order. To support information extraction and classification tasks over such text, we describe a de-identified corpus of free text notes, a shallow syntactic and named entity annotation scheme for this kind of text, and an approach to training domain specialists with no linguistic background to annotate the text...
2016: Language Resources and Evaluation
https://www.readbyqxmd.com/read/27539762/reviewing-a-manuscript-disparity-amongst-peer-reviewers-priorities-from-basic-health-sciences-and-clinicians
#16
Saeeda Baig, Sana Ahmed, Hira Attique
OBJECTIVE: To determine the disparities and the priorities of basic health scientists and clinicians while assessing a manuscript. STUDY DESIGN: Cross-sectional study. PLACE AND DURATION OF STUDY: The study was conducted at Karachi, from January to April 2014. METHODOLOGY: The study was a proforma-based research, employed convenient sampling for data collection, in which 100 reviewers belonging to clinical and basic health science background were selected...
August 2016: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/27510320/brief-group-intervention-targeting-perfectionism-in-adults-with-anorexia-nervosa-empirically-informed-protocol
#17
Kate Tchanturia, Eva Larsson, James Adamson
OBJECTIVE: This study aimed to evaluate the perfectionism group intervention in adults with anorexia nervosa (AN) in an inpatient setting. METHOD: Adults with AN (N = 35) received six weekly sessions of the empirically informed intervention with experiential exercises. Participants' self-reported perfectionism and satisfaction were collected pre-group and post-group intervention. RESULTS: Statistically, significant differences were observed for overall perfectionism, concern over mistakes and personal standard dimensions of perfectionism...
August 10, 2016: European Eating Disorders Review: the Journal of the Eating Disorders Association
https://www.readbyqxmd.com/read/27446603/mistakes-in-ultrasound-examination-of-salivary-glands
#18
REVIEW
Ewa J Białek, Wiesław Jakubowski
Ultrasonography is the first imaging method applied in the case of diseases of the salivary glands. The article discusses basic mistakes that can be made during an ultrasound examination of these structures. The reasons for these mistakes may be examiner-dependent or may be beyond their control. The latter may include, inter alia, difficult conditions during examination (technical or patient-related), similarity of ultrasound images in different diseases, the lack of clinical and laboratory data as well as the lack of results of other examinations, their insufficient number or incorrectness...
June 2016: Journal of Ultrasonography
https://www.readbyqxmd.com/read/27433908/professionalism-training-for-surgical-residents-documenting-the-advantages-of-a-professionalism-curriculum
#19
Mark S Hochberg, Russell S Berman, Adina L Kalet, Sondra Zabar, Colleen Gillespie, H Leon Pachter
OBJECTIVES: Professionalism education is a vital component of surgical training. This research attempts to determine whether an annual, year-long professionalism curriculum in a large surgical residency can effectively change professionalism attitudes. SUMMARY OF BACKGROUND DATA: The ACGME mandated 6 competencies in 2003. The competencies of Professionalism and Interpersonal/Professional Communication Skills had never been formally addressed in surgical resident education in the past...
September 2016: Annals of Surgery
https://www.readbyqxmd.com/read/27393762/simulator-based-air-medical-training-program-christoph-life-from%C3%A2-concept-to-course
#20
Marcel Winkelmann, Lars Friedrich, Christian Schröter, Andreas Flemming, Hendrik Eismann, Lion Sieg, Philipp Mommsen, Christian Krettek, Christian Zeckey
OBJECTIVE: Christoph Life is a simulator-based air medical training program and a new and innovative educational concept. Participants pass different scenarios with a fully equipped and movable helicopter simulator. Main focuses of the program are crew resource management (CRM) elements and team training. Information about expectations end effectiveness of the training is sparse. METHODS: During a 2-day training, participants learn CRM basics and complete various emergency medical scenarios...
July 2016: Air Medical Journal
keyword
keyword
107197
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"