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https://www.readbyqxmd.com/read/28225500/the-prevalence-of-potentially-preventable-deaths-in-an-acute-care-hospital-a-retrospective-cohort
#1
Daniel M Kobewka, Carl van Walraven, Monica Taljaard, Paul Ronksley, Alan J Forster
Studies estimate that 6% to 27% of deaths in hospitals might be prevented with higher quality care. These estimates may be inaccurate because they fail to account for the uncertainty associated with classifying preventability. The purpose of this study was to measure the prevalence of preventable deaths, accounting for the uncertainty in preventability ratings.We created standardized structured case abstracts for all deaths at a multisite academic teaching hospital over a 3-month period. Each case abstract was evaluated independently by 4 reviewers who rated death preventability on a 100-point scale ranging from 0 ("Definitely not preventable") to 100 ("Definitely preventable")...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28222806/internalized-homophobia-mental-health-sexual-behaviors-and-outness-of-gay-bisexual-men-from-southwest-china
#2
Wenjian Xu, Lijun Zheng, Yin Xu, Yong Zheng
BACKGROUND: Social attitudes toward male homosexuality in China so far are still not optimistic. Sexual minorities in China have reported high levels of internalized homophobia. METHODS: This Internet-based study examined the associations among internalized homophobia, mental health, sexual behaviors, and outness among 435 gay/bisexual men in Southwest China from 2014 to 2015. Latent profile analysis, confirmatory factor analysis, univariate logistic regression, and separate multivariate logistic regression analyses were conducted...
February 17, 2017: International Journal for Equity in Health
https://www.readbyqxmd.com/read/28221058/concurrent-and-prognostic-utility-of-subtyping-anorexia-nervosa-along-dietary-and-negative-affect-dimensions
#3
Kelsie T Forbush, Kelsey E Hagan, Rachel H Salk, Jennifer E Wildes
: Bulimia nervosa can be reliably classified into subtypes based on dimensions of dietary restraint and negative affect. Community and clinical studies have shown that dietary-negative affect subtypes have greater test-retest reliability and concurrent and predictive validity compared to subtypes based on the Diagnostic and Statistical Manual of Mental Disorders (DSM). Although dietary-negative affect subtypes have shown utility for characterizing eating disorders that involve binge eating, this framework may have broader implications for understanding restrictive eating disorders...
March 2017: Journal of Consulting and Clinical Psychology
https://www.readbyqxmd.com/read/28221051/development-of-fraction-comparison-strategies-a-latent-transition-analysis
#4
Luke F Rinne, Ai Ye, Nancy C Jordan
The present study investigated the development of fraction comparison strategies through a longitudinal analysis of children's responses to a fraction comparison task in 4th through 6th grades (N = 394). Participants were asked to choose the larger value for 24 fraction pairs blocked by fraction type. Latent class analysis of performance over item blocks showed that most children initially exhibited a "whole number bias," indicating that larger numbers in numerators and denominators produce larger fraction values...
February 20, 2017: Developmental Psychology
https://www.readbyqxmd.com/read/28219802/marijuana-use-trajectories-among-drug-using-youth-presenting-to-an-urban-emergency-department-violence-and-social-influences
#5
Maureen A Walton, Quyen Epstein-Ngo, Patrick M Carter, Marc A Zimmerman, Frederic C Blow, Anne Buu, Jason Goldstick, Rebecca M Cunningham
AIMS: This paper examined longitudinal marijuana use trajectories among drug-using youth presenting to the ED to inform intervention development. METHODS: Given interest in substance use and violence, this study oversampled those presenting with assault injuries. Assault-injured youth (ages 14-24) endorsing past 6-month drug use (n=349), and a sex and age proportionally-sampled comparison group (n=250) endorsing drug use, completed a baseline assessment and follow-ups at 6, 12, 18, and 24 months...
February 3, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28217244/estimating-causal-effects-with-ancestral-graph-markov-models
#6
Daniel Malinsky, Peter Spirtes
We present an algorithm for estimating bounds on causal effects from observational data which combines graphical model search with simple linear regression. We assume that the underlying system can be represented by a linear structural equation model with no feedback, and we allow for the possibility of latent variables. Under assumptions standard in the causal search literature, we use conditional independence constraints to search for an equivalence class of ancestral graphs. Then, for each model in the equivalence class, we perform the appropriate regression (using causal structure information to determine which covariates to include in the regression) to estimate a set of possible causal effects...
August 2016: JMLR Workshop and Conference Proceedings
https://www.readbyqxmd.com/read/28214741/identifying-social-smoking-u-s-young-adults-using-an-empirically-driven-approach
#7
Andrea C Villanti, Amanda L Johnson, Jessica M Rath, Valerie Williams, Donna M Vallone, David B Abrams, Donald Hedeker, Robin J Mermelstein
The phenomenon of "social smoking" emerged in the past decade as an important area of research, largely due to its high prevalence in young adults. The purpose of this study was to identify classes of young adult ever smokers based on measures of social and contextual influences on tobacco use. Latent class models were developed using social smoking measures, and not the frequency or quantity of tobacco use. Data come from a national sample of young adult ever smokers aged 18-24 (Truth Initiative Young Adult Cohort Study, N=1564)...
February 10, 2017: Addictive Behaviors
https://www.readbyqxmd.com/read/28214434/an-examination-of-alcohol-risk-profiles-and-co-occurring-mental-health-symptoms-among-oef-oif-veterans
#8
Jennifer M Cadigan, Alicia K Klanecky, Matthew P Martens
INTRODUCTION: Compared to the general population, veterans of the wars in Afghanistan and Iraq (OEF/OIF) are more likely to engage in hazardous alcohol use and meet criteria for mental health disorders including Posttraumatic Stress Disorder (PTSD) and Major Depressive Disorder. Less is known how distinct profiles of alcohol use behavior relate to mental health symptoms. METHOD: The current study examined the extent that indicators of alcohol use (i.e., drinks per week, peak blood alcohol concentration, and alcohol-related problems) are categorized into different alcohol risk profiles utilizing a person-centered approach...
February 9, 2017: Addictive Behaviors
https://www.readbyqxmd.com/read/28212506/dimensional-and-discrete-variations-on-the-psychosis-continuum-in-a-dutch-crowd-sourcing-population-sample
#9
J T W Wigman, K J Wardenaar, R B K Wanders, S H Booij, B F Jeronimus, L van der Krieke, M Wichers, P de Jonge
BACKGROUND: Mild psychotic experiences are common in the general population. Although transient and benign in most cases, these experiences are predictive of later mental health problems for a significant minority. The goal of the present study was to perform examinations of the dimensional and discrete variations in individuals' reporting of subclinical positive and negative psychotic experiences in a unique Dutch internet-based sample from the general population. METHODS: Positive and negative subclinical psychotic experiences were measured with the Community Assessment of Psychic Experiences in 2870 individuals...
December 18, 2016: European Psychiatry: the Journal of the Association of European Psychiatrists
https://www.readbyqxmd.com/read/28211491/interference-between-variants-of-peach-latent-mosaic-viroid-reveals-novel-features-of-its-fitness-landscape-implications-for-detection
#10
Pedro Serra, Edson Bertolini, M Carmen Martínez, Mariano Cambra, Ricardo Flores
Natural populations of peach latent mosaic viroid (PLMVd) are complex mixtures of variants. During routine testing, TaqMan rtRT-PCR and RNA gel-blot hybridization produced discordant results with some PLMVd isolates. Analysis of the corresponding populations showed that they were exclusively composed of variants (of class II) with a structural domain different from that of the reference and many other variants (of class I) targeted by the TaqMan rtRT-PCR probe. Bioassays in peach revealed that a representative PLMVd variant of class II replicated without symptoms, generated a progeny with low nucleotide diversity, and, intriguingly, outcompeted a representative symptomatic variant of class I when co-inoculated in equimolecular amounts...
February 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28208811/does-the-valuation-of-nutritional-claims-differ-among-consumers-insights-from-spain
#11
Francesc Jurado, Azucena Gracia
The presence in the market of food products with nutritional claims is increasing. The objective of this paper is to assess consumers' valuation of some nutritional claims ('high in fiber' and 'reduced saturated fat') in a European country and to test for differences among consumers. An artefactual non-hypothetical experiment was carried out in a realistic setting (mock/real brick-and-mortar supermarket) with a sample of 121 Spanish consumers stratified by gender, age, and body mass index. A latent class model was specified and estimated with the data from the experiment...
February 13, 2017: Nutrients
https://www.readbyqxmd.com/read/28208353/solar-potential-scaling-and-the-urban-road-network-topology
#12
Sara Najem
We explore the scaling of cities' solar potentials with their number of buildings and reveal a latent dependence between the solar potential and the length of the corresponding city's road network. This scaling is shown to be valid at the grid and block levels and is attributed to a common street length distribution. Additionally, we compute the buildings' solar potential correlation function and length in order to determine the set of critical exponents typifying the urban solar potential universality class...
January 2017: Physical Review. E
https://www.readbyqxmd.com/read/28203082/the-parental-bonding-in-families-of-adolescents-with-anorexia-attachment-representations-between-parents-and-offspring
#13
Laura Balottin, Stefania Mannarini, Maura Rossi, Giorgio Rossi, Umberto Balottin
INTRODUCTION: The attachment theory is widely used in order to explain anorexia nervosa origin, course and treatment response. Nevertheless, very little literature specifically investigated parental bonding in adolescents with anorexia, as well as the parents' own bonding and intergenerational transmission within the family. PURPOSE: This study aims to identify any specific pattern of parental bonding in families of adolescents newly diagnosed with restricting-type anorexia, comparing them to the families of the control group...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28197337/defective-t-cell-control-of-epstein-barr-virus-infection-in-multiple-sclerosis
#14
Michael P Pender, Peter A Csurhes, Jacqueline M Burrows, Scott R Burrows
Mounting evidence indicates that infection with Epstein-Barr virus (EBV) has a major role in the pathogenesis of multiple sclerosis (MS). Defective elimination of EBV-infected B cells by CD8(+) T cells might cause MS by allowing EBV-infected autoreactive B cells to accumulate in the brain. Here we undertake a comprehensive analysis of the T-cell response to EBV in MS, using flow cytometry and intracellular IFN-γ staining to measure T-cell responses to EBV-infected autologous lymphoblastoid cell lines and pools of human leukocyte antigen (HLA)-class-I-restricted peptides from EBV lytic or latent proteins and cytomegalovirus (CMV), in 95 patients and 56 EBV-seropositive healthy subjects...
January 2017: Clinical & Translational Immunology
https://www.readbyqxmd.com/read/28196783/symptom-cluster-trajectories-during-chemotherapy-in-breast-cancer-outpatients
#15
Hsin-Tien Hsu, Kuan-Chia Lin, Li-Min Wu, Chiung-Hui Juan, Ming-Feng Hou, Shiow-Li Hwang, Yi Liu, Marylin J Dodd
CONTEXT: Breast cancer patients often experience multiple symptoms and substantial discomfort. Some symptoms may occur simultaneously and throughout the duration of chemotherapy treatment OBJECTIVES: The aim of this study was to investigate symptom severity and symptom cluster trajectories during chemotherapy in outpatients with breast cancer in Taiwan. METHODS: This prospective, longitudinal, repeated measures study administered a standardized questionnaire (M...
February 11, 2017: Journal of Pain and Symptom Management
https://www.readbyqxmd.com/read/28196067/body-weight-trajectories-and-risk-of-oesophageal-and-gastric-cardia-adenocarcinomas-a-pooled-analysis-of-nih-aarp-and-plco-studies
#16
Jessica L Petrick, Scott P Kelly, Linda M Liao, Neal D Freedman, Barry I Graubard, Michael B Cook
BACKGROUND: Elevated body mass index (BMI, kg m(-2)) has been consistently associated with oesophageal adenocarcinoma (EA) and gastric cardia adenocarcinoma (GCA) incidence. However, effects of adiposity over the life course in relation to EA/GCA have not been thoroughly explored. METHODS: We pooled two prospective cohort studies: NIH-AARP Diet and Health Study and Prostate, Lung, Colorectal, and Ovarian (PLCO) Cancer Screening Trial, with data on 409 796 individuals (633 EA, 415 GCA)...
February 14, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28194606/sexual-partner-typologies-and-the-association-between-drug-use-and-sexual-risk-behavior-among-young-men-who-have-sex-with-men
#17
Patrick Janulis, Brian A Feinstein, Gregory Phillips, Michael E Newcomb, Michelle Birkett, Brian Mustanski
Numerous partner and relationship characteristics are associated with sexual risk behavior among young men who have sex with men (YMSM), including being in a serious relationship and having older partners. However, most research in this area is limited by its reliance on variable-centered approaches. Using multilevel latent class analysis, this study identified subgroups of sexual partner types with a particular emphasis on examining whether partner type moderated the association between drug use and condomless anal sex (CAS)...
February 13, 2017: Archives of Sexual Behavior
https://www.readbyqxmd.com/read/28192736/evidence-of-the-dissociative-ptsd-subtype-a-systematic-literature-review-of-latent-class-and-profile-analytic-studies-of-ptsd
#18
REVIEW
Maj Hansen, Jana Ross, Cherie Armour
BACKGROUND: The dissociative PTSD (D-PTSD) subtype was first introduced into the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) in 2013. Prior to this, studies using latent profile analysis (LPA) or latent class analysis (LCA), began to provide support for the D-PTSD construct and associated risk factors. This research is important, because dissociative symptoms in the context of PTSD may potentially interfere with treatment course or outcome. The aims of the present study were twofold: to systematically review the LCA and LPA studies investigating support for the D-PTSD construct; and to review the associated research on the risk factors or covariates of D-PTSD in the identified studies...
February 7, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28190681/differential-effects-of-metformin-on-age-related-comorbidities-in-older-men-with-type-2-diabetes
#19
Chen-Pin Wang, Carlos Lorenzo, Samy L Habib, Booil Jo, Sara E Espinoza
AIMS: To identify distinct temporal likelihoods of age-related comorbidity (ARC) diagnoses: cardiovascular diseases (CVD), cancer, depression, dementia, and frailty-related diseases (FRD) in older men with type 2 diabetes (T2D) but ARC naïve initially, and assess the heterogeneous effects of metformin on ARCs and mortality. METHODS: We identified a clinical cohort of male veterans in the United States who were ≥65years old with T2D and free from ARCs during 2002-2003...
January 28, 2017: Journal of Diabetes and its Complications
https://www.readbyqxmd.com/read/28187338/a-hybrid-latent-class-analysis-modeling-approach-to-analyze-urban-expressway-crash-risk
#20
Rongjie Yu, Xuesong Wang, Mohamed Abdel-Aty
Crash risk analysis is rising as a hot research topic as it could reveal the relationships between traffic flow characteristics and crash occurrence risk, which is beneficial to understand crash mechanisms which would further refine the design of Active Traffic Management System (ATMS). However, the majority of the current crash risk analysis studies have ignored the impact of geometric characteristics on crash risk estimation while recent studies proved that crash occurrence risk was affected by the various alignment features...
February 7, 2017: Accident; Analysis and Prevention
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