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Likelihood ratios

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https://www.readbyqxmd.com/read/27914277/accurate-assessment-of-the-weight-of-evidence-for-dna-mixtures-by-integrating-the-likelihood-ratio
#1
Klaas Slooten
Several methods exist for weight of evidence calculations on DNA mixtures. Especially if dropout is a possibility, it may be difficult to estimate mixture specific parameters needed for the evaluation. For semi-continuous models, the LR for a person to have contributed to a mixture depends on the specified number of contributors and the probability of dropout for each. We show here that, for the semi-continuous model that we consider, the weight of evidence can be accurately obtained by applying the standard statistical technique of integrating the likelihood ratio against the parameter likelihoods obtained from the mixture data...
November 16, 2016: Forensic Science International. Genetics
https://www.readbyqxmd.com/read/27913056/the-best-of-intentions-a-structural-analysis-of-the-association-between-socioeconomic-disadvantage-and-unintended-pregnancy-in-a-sample-of-mothers-from-the-national-longitudinal-survey-of-youth-1979
#2
Akilah Wise, Arline T Geronimus, Pamela J Smock
OBJECTIVES: Births to less educated women are more likely to be classified as unintended than other births. We question a common interpretation that this association reflects a lack of contraceptive knowledge or self-efficacy among less educated women. We theorize that differences in early life educational advantages structure pregnancy desires and the salience and opportunity costs of precise fertility timing. We hypothesize that net of covariates indicative of early educational disadvantage, mothers with less education are not more likely to report births as unintended compared with mothers who have attained higher levels of education before becoming mothers...
November 29, 2016: Women's Health Issues: Official Publication of the Jacobs Institute of Women's Health
https://www.readbyqxmd.com/read/27912766/non-random-distribution-of-child-undernutrition-in-ethiopia-spatial-analysis-from-the-2011-ethiopia-demographic-and-health-survey
#3
Zewdie Aderaw Alemu, Ahmed Ali Ahmed, Alemayehu Worku Yalew, Belay Simanie Birhanu
BACKGROUND: Child undernutrition showed geographical inequalities due to variations in contextual determinants from area to area which indicates that location is an important factor in child undernutrition. However, there are limited studies on spatial epidemiology of child undernutrition in Ethiopia. This study was aimed to identify the SaTScan spatial clusters of child undernutrition in Ethiopia. METHODS: Nutritional indices of children (0-59 months) with Global Positioning System (GPS) location data were accessed from the 2011 Ethiopia Demographic and Health Survey (EDHS) after getting permission from the MEASURES Demographic and Health Survey (DHS) Program...
December 3, 2016: International Journal for Equity in Health
https://www.readbyqxmd.com/read/27911963/teaching-evidence-based-physical-diagnosis-six-bedside-lessons
#4
Steven McGee
Evidence-based physical diagnosis is an essential part of the bedside curriculum. By using the likelihood ratio, a simple measure of diagnostic accuracy, teachers can quickly adapt this approach to their bedside teaching. Six recurring themes in evidence-based physical diagnosis are fully reviewed, with examples, in this article.
December 2016: Southern Medical Journal
https://www.readbyqxmd.com/read/27911851/inherited-variants-affecting-rna-editing-may-contribute-to-ovarian-cancer-susceptibility-results-from-a-large-scale-collaboration
#5
Jennifer B Permuth, Brett Reid, Madalene Earp, Y Ann Chen, Alvaro N A Monteiro, Zhihua Chen, Aocs Study Group, Georgia Chenevix-Trench, Peter A Fasching, Matthias W Beckmann, Diether Lambrechts, Adriaan Vanderstichele, Els Van Niewenhuyse, Ignace Vergote, Mary Anne Rossing, Jennifer Anne Doherty, Jenny Chang-Claude, Kirsten Moysich, Kunle Odunsi, Marc T Goodman, Yurii B Shvetsov, Lynne R Wilkens, Pamela J Thompson, Thilo Dörk, Natalia Bogdanova, Ralf Butzow, Heli Nevanlinna, Liisa Pelttari, Arto Leminen, Francesmary Modugno, Robert P Edwards, Roberta B Ness, Joseph Kelley, Florian Heitz, Beth Karlan, Jenny Lester, Susanne K Kjaer, Allan Jensen, Graham Giles, Michelle Hildebrandt, Dong Liang, Karen H Lu, Xifeng Wu, Douglas A Levine, Maria Bisogna, Andrew Berchuck, Daniel W Cramer, Kathryn L Terry, Shelley S Tworoger, Elizabeth M Poole, Elisa V Bandera, Brooke Fridley, Julie Cunningham, Stacey J Winham, Sara H Olson, Irene Orlow, Line Bjorge, Lambertus A Kiemeney, Leon Massuger, Tanja Pejovic, Melissa Moffitt, Nhu Le, Linda S Cook, Angela Brooks-Wilson, Linda E Kelemen, Jacek Gronwald, Jan Lubinski, Nicolas Wentzensen, Louise A Brinton, Jolanta Lissowska, Hanna Yang, Estrid Hogdall, Claus Hogdall, Lene Lundvall, Paul D P Pharoah, Honglin Song, Ian Campbell, Diana Eccles, Iain McNeish, Alice Whittemore, Valerie McGuire, Weiva Sieh, Joseph Rothstein, Catherine M Phelan, Harvey Risch, Steven Narod, John McLaughlin, Hoda Anton-Culver, Argyrios Ziogas, Usha Menon, Simon Gayther, Susan J Ramus, Aleksandra Gentry-Maharaj, Celeste Leigh Pearce, Anna H Wu, Jolanta Kupryjanczyk, Agnieszka Dansonka-Mieszkowska, Joellen M Schildkraut, Jin Q Cheng, Ellen L Goode, Thomas A Sellers
RNA editing in mammals is a form of post-transcriptional modification in which adenosine is converted to inosine by the adenosine deaminases acting on RNA (ADAR) family of enzymes. Based on evidence of altered ADAR expression in epithelial ovarian cancers (EOC), we hypothesized that single nucleotide polymorphisms (SNPs) in ADAR genes modify EOC susceptibility, potentially by altering ovarian tissue gene expression. Using directly genotyped and imputed data from 10,891 invasive EOC cases and 21,693 controls, we evaluated the associations of 5,303 SNPs in ADAD1, ADAR, ADAR2, ADAR3, and SND1...
July 12, 2016: Oncotarget
https://www.readbyqxmd.com/read/27910171/results-of-computed-tomography-in-dogs-with-suspected-wooden-foreign-bodies
#6
Christopher R Lamb, Elizabeth H W Pope, Karla C L Lee
Detection of wooden foreign bodies in dogs can be challenging. A retrospective, cross-sectional study was done to describe computed tomographic (CT) signs associated with wooden foreign bodies, and to estimate the accuracy of CT for detection of wooden foreign bodies. Patient records and CT images were reviewed for 72 dogs that had a history of suspected stick injury and CT of the affected body part, or possible wooden foreign object reported on CT, and had surgical exploration during the same period of hospitalization...
December 1, 2016: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/27909825/poor-outcomes-of-gastric-cancer-surgery-after-admission-through-the-emergency-department
#7
Ian Solsky, Patricia Friedmann, Peter Muscarella, Haejin In
BACKGROUND: Outcomes after nonelective surgery for gastric cancer (GC) are poorly defined. Our objective was to compare outcomes of patients undergoing nonelective GC surgery after admission through the emergency department (EDSx) with patients receiving elective surgery or surgery after planned admission (non-EDSx) nationally. METHODS: The Nationwide Inpatient Sample (NIS) database was used to examine patients undergoing GC surgery between 2008 and 2012. Demographics and outcomes were compared between EDSx and non-EDSx...
December 1, 2016: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/27909639/factors-associated-with-the-use-of-radiation-therapy-in-patients-with-stage-iii-non-small-cell-lung-cancer-in-alberta-canada-a-population-based-study
#8
Hong-Wei Liu, Marc Kerba, Gerald Lim, Zsolt Gabos, Ivo A Olivotto, Anil Abraham Joy, Wilson Roa, Zoann Nugent, Harold Lau
BACKGROUND: Cancer care in Alberta, Canada is publicly funded and provides patients with access to health care facilities and providers. The distribution of patients and health services across Alberta presents challenges to the delivery of cancer care, especially radiation therapy. In this study, we examined the association between patient and health system factors, the use of radiation therapy and survival outcomes in patients with stage III non-small cell lung cancer (NSCLC). PATIENTS AND METHODS: The provincial cancer registry was used to identify all patients who presented with clinical stage III NSCLC, diagnosed from 2005 to 2007, in Alberta...
October 27, 2016: Curēus
https://www.readbyqxmd.com/read/27909581/expansion-of-health-insurance-in-moldova-and-associated-improvements-in-access-and-reductions-in-direct-payments
#9
Thomas Hone, Jarno Habicht, Silviu Domente, Rifat Atun
BACKGROUND: Moldova is the poorest country in Europe. Economic constraints mean that Moldova faces challenges in protecting individuals from excessive costs, improving population health and securing health system sustainability. The Moldovan government has introduced a state benefit package and expanded health insurance coverage to reduce the burden of health care costs for citizens. This study examines the effects of expanded health insurance by examining factors associated with health insurance coverage, likelihood of incurring out-of-pocket (OOP) payments for medicines or services, and the likelihood of forgoing health care when unwell...
December 2016: Journal of Global Health
https://www.readbyqxmd.com/read/27909358/sensewearmini-and-actigraph-gt3x-accelerometer-classification-of-observed-sedentary-and-light-intensity-physical-activities-in-a-laboratory-setting
#10
Lynne M Feehan, Charles H Goldsmith, April Y F Leung, Linda C Li
Purpose: To compare the ability of SenseWear Mini (SWm) and Actigraph GT3X (AG3) accelerometers to differentiate between healthy adults' observed sedentary and light activities in a laboratory setting. Methods: The 22 participants (15 women, 7 men), ages 19 to 72 years, wore SWm and AG3 monitors and performed five sedentary and four light activities for 5 minutes each while observed in a laboratory setting. Performance was examined through comparisons of accuracy, sensitivity, specificity, positive and negative predictive values, and positive and negative likelihood ratios...
2016: Physiotherapy Canada. Physiothérapie Canada
https://www.readbyqxmd.com/read/27909203/lipid-changes-around-the-final-menstrual-period-predict-carotid-subclinical-disease-in-postmenopausal-women
#11
Karen A Matthews, Samar R El Khoudary, Maria M Brooks, Carol A Derby, Siobán D Harlow, Emma J M Barinas-Mitchell, Rebecca C Thurston
BACKGROUND AND PURPOSE: Atherogenic changes in lipids occur among women around the time of the natural menopause, that is, within 1 year of the final menstrual period (FMP). We investigated whether lipid changes around the FMP are related to carotid intima-media thickness, interadventitial diameter, and plaque in postmenopausal women. METHODS: A total of 863 natural postmenopausal women with no history of heart attack or stroke underwent carotid ultrasound scans at follow-up year 12 or 13 of the Study of Women's Health Across the Nation...
December 1, 2016: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/27908918/alpha-blockers-for-treatment-of-ureteric-stones-systematic-review-and-meta-analysis
#12
John M Hollingsworth, Benjamin K Canales, Mary A M Rogers, Shyam Sukumar, Phyllis Yan, Gretchen M Kuntz, Philipp Dahm
OBJECTIVE:  To investigate the efficacy and safety of alpha blockers in the treatment of patients with ureteric stones. DESIGN:  Systematic review and meta-analysis. DATA SOURCES:  Cochrane Central Register of Controlled Trials, Web of Science, Embase, LILACS, and Medline databases and scientific meeting abstracts to July 2016. REVIEW METHODS:  Randomized controlled trials of alpha blockers compared with placebo or control for treatment of ureteric stones were eligible...
December 1, 2016: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/27908152/design-of-a-model-observer-to-evaluate-calcification-detectability-in-breast-tomosynthesis-and-application-to-smoothing-prior-optimization
#13
Koen Michielsen, Johan Nuyts, Lesley Cockmartin, Nicholas Marshall, Hilde Bosmans
PURPOSE: In this work, the authors design and validate a model observer that can detect groups of microcalcifications in a four-alternative forced choice experiment and use it to optimize a smoothing prior for detectability of microcalcifications. METHODS: A channelized Hotelling observer (CHO) with eight Laguerre-Gauss channels was designed to detect groups of five microcalcifications in a background of acrylic spheres by adding the CHO log-likelihood ratios calculated at the expected locations of the five calcifications...
December 2016: Medical Physics
https://www.readbyqxmd.com/read/27907065/statistical-frailty-modeling-for-quantitative-analysis-of-exocytotic-events-recorded-by-live-cell-imaging-rapid-release-of-insulin-containing-granules-is-impaired-in-human-diabetic-%C3%AE-cells
#14
Giuliana Cortese, Nikhil R Gandasi, Sebastian Barg, Morten Gram Pedersen
Hormones and neurotransmitters are released when secretory granules or synaptic vesicles fuse with the cell membrane, a process denoted exocytosis. Modern imaging techniques, in particular total internal reflection fluorescence (TIRF) microscopy, allow the investigator to monitor secretory granules at the plasma membrane before and when they undergo exocytosis. However, rigorous statistical approaches for temporal analysis of such exocytosis data are still lacking. We propose here that statistical methods from time-to-event (also known as survival) analysis are well suited for the problem...
2016: PloS One
https://www.readbyqxmd.com/read/27906806/awareness-of-cervical-cancer-causes-and-predeterminants-of-likelihood-to-screen-among-women-in-haiti
#15
Schatzi H McCarthy, Kathy A Walmer, Joel C Boggan, Margaret W Gichane, William A Calo, Harry A Beauvais, Noel T Brewer
OBJECTIVES: Cervical cancer is the leading cause of cancer deaths among women in Haiti. Given this high disease burden, we sought to better understand women's knowledge of its causes and the sociodemographic and health correlates of cervical cancer screening. MATERIALS AND METHODS: Participants were 410 adult women presenting at clinics in Léogâne and Port-au-Prince, Haiti. We used bivariate and multivariate logic regression to identify correlates of Pap smear receipt...
November 30, 2016: Journal of Lower Genital Tract Disease
https://www.readbyqxmd.com/read/27906731/association-between-clinical-nurse-specialist-s-presence-and-open-visitation-in-us-intensive-care-units
#16
Sukardi Suba, DorAnne Donesky, Elizabeth Ann Scruth, Virginia Carrieri-Kohlman
BACKGROUND: Current evidence shows that an open visitation policy can benefit patients and families during intensive care unit (ICU) stays. Therefore, an unrestricted visitation policy in the ICU has been proposed as part of patient-centered care. PURPOSE: The purpose of this secondary analysis is to explore the likelihood of an ICU with a clinical nurse specialist (CNS) having an open visitation policy when compared with an ICU without a CNS. DESIGN: This is a secondary analysis of a survey conducted between 2008 and 2009, describing the ICU visitation practices in more than 600 hospitals across the United States...
January 2017: Clinical Nurse Specialist CNS
https://www.readbyqxmd.com/read/27906671/risk-stratification-of-thyroid-nodules-with-bethesda-category-iii-results-on-fine-needle-aspiration-cytology-the-additional-value-of-acoustic-radiation-force-impulse-elastography
#17
Chong-Ke Zhao, Hui-Xiong Xu, Jun-Mei Xu, Cheng-Yu Sun, Wei Chen, Bo-Ji Liu, Xiao-Wan Bo, Dan Wang, Shen Qu
To assess the value of conventional ultrasound, conventional strain elastography (CSE) and acoustic radiation force impulse (ARFI) elastography in differentiating likelihood of malignancy for Bethesda category III thyroid nodules. 103 thyroid nodules with Bethesda category III results on fine-needle aspiration cytology (FNAC) in 103 patients were included and all were pathologically confirmed after surgery. Conventional ultrasound, CSE and ARFI elastography including ARFI imaging and point shear wave speed (SWS) measurement were performed...
November 29, 2016: Oncotarget
https://www.readbyqxmd.com/read/27905178/follow-up-to-determine-unplanned-hospitalization-and-complications-after-endoscopic-retrograde-cholangiopancreatography
#18
Edwina Chan, Teresa Neeman, Andrew Thomson
BACKGROUND: Studies of endoscopic retrograde cholangiopancreatography (ERCP)-related complications are inconsistent and sometimes have insufficient patient follow-up. The aim of this study was to investigate risk factors for ERCP-related events, leading to hospitalization in the case of outpatients and prolonged hospital stay in the case of inpatients, using assiduous follow-up and contemporaneous recording of data. METHODS: Prospectively collected data of 1000 consecutive ERCP procedures performed by a single endoscopist at a tertiary referral centre in Canberra, Australia, were studied and the complications evaluated...
December 1, 2016: ANZ Journal of Surgery
https://www.readbyqxmd.com/read/27904602/comparison-of-different-risk-stratification-systems-in-predicting-short-term-serious-outcome-of-syncope-patients
#19
Saeed Safari, Alireza Baratloo, Behrooz Hashemi, Farhad Rahmati, Mohammad Mehdi Forouzanfar, Maryam Motamedi, Ladan Mirmohseni
BACKGROUND: Determining etiologic causes and prognosis can significantly improve management of syncope patients. The present study aimed to compare the values of San Francisco, Osservatorio Epidemiologico sulla Sincope nel Lazio (OESIL), Boston, and Risk Stratification of Syncope in the Emergency Department (ROSE) score clinical decision rules in predicting the short-term serious outcome of syncope patients. MATERIALS AND METHODS: The present diagnostic accuracy study with 1-week follow-up was designed to evaluate the predictive values of the four mentioned clinical decision rules...
2016: Journal of Research in Medical Sciences: the Official Journal of Isfahan University of Medical Sciences
https://www.readbyqxmd.com/read/27903135/support-for-relatives-bereaved-by-psychiatric-patient-suicide-national-confidential-inquiry-into-suicide-and-homicide-findings
#20
Alexandra L Pitman, Isabelle M Hunt, Sharon J McDonnell, Louis Appleby, Navneet Kapur
OBJECTIVES: International suicide prevention strategies recommend providing support to families bereaved by suicide. The study objectives were to measure the proportion of cases in which psychiatric professionals contact next of kin after a patient's suicide and to investigate whether specific, potentially stigmatizing patient characteristics influence whether the family is contacted. METHODS: Annual survey data from England and Wales (2003-2012) were used to identify 11,572 suicide cases among psychiatric patients...
December 1, 2016: Psychiatric Services: a Journal of the American Psychiatric Association
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