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Structural equation modeling

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https://www.readbyqxmd.com/read/28110419/patients-trust-in-physician-patient-enablement-and-health-related-quality-of-life-during-colon-cancer-treatment
#1
Nicole Ernstmann, Markus Wirtz, Anika Nitzsche, Sophie E Gross, Lena Ansmann, Tristan D Gloede, Julia Jung, Holger Pfaff, Walter Baumann, Stephan Schmitz, Melanie Neumann
In cancer care, where patients and their families experience significant emotional distress and patients have to deal with complex medical information, patient centeredness is an important aspect of quality of care. The aim of this study is to examine the impact of patients' trust in their oncologists and patients' enablement on changes in health-related quality of life of colon cancer patients during follow-up care. We conducted a prospective study in a representative sample of private practices of German oncologists (N = 44)...
January 21, 2017: Journal of Cancer Education: the Official Journal of the American Association for Cancer Education
https://www.readbyqxmd.com/read/28110224/emotional-intelligence-and-coping-strategies-as-determinants-of-quality-of-life-in-depressed-patient-caregiver-dyads-an-actor-partner-interdependence-analysis
#2
L Boyer, K Baumstarck, M Alessandrini, Z Hamidou, J Testart, M Serres, P Arquillière, P Auquier, T Leroy, X Zendjidjian
OBJECTIVE: Patients with major depressive disorder (MDD) and their natural caregivers experience major lifestyle difficulties. Little is known concerning dyadic (i.e., patient and natural caregiver) characteristics' impact on quality of life. In a sample of depressed patient-caregiver dyads, we examined quality of life (QoL) levels compared with the general population and whether QoL is influenced by emotional intelligence (EI) and coping strategies using the actor-partner interdependence model (APIM)...
January 8, 2017: Comprehensive Psychiatry
https://www.readbyqxmd.com/read/28110156/maternal-childhood-trauma-postpartum-depression-and-infant-outcomes-avoidant-affective-processing-as-a-potential-mechanism
#3
Karmel W Choi, Kathleen J Sikkema, Bavi Vythilingum, Lut Geerts, Sheila C Faure, Melissa H Watt, Annerine Roos, Dan J Stein
BACKGROUND: Women who have experienced childhood trauma may be at risk for postpartum depression, increasing the likelihood of negative outcomes among their children. Predictive pathways from maternal childhood trauma to child outcomes, as mediated by postpartum depression, require investigation. METHODS: A longitudinal sample of South African women (N=150) was followed through pregnancy and postpartum. Measures included maternal trauma history reported during pregnancy; postpartum depression through six months; and maternal-infant bonding, infant development, and infant physical growth at one year...
January 8, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28109212/two-structure-thermodynamics-for-the-tip4p-2005-model-of-water-covering-supercooled-and-deeply-stretched-regions
#4
John W Biddle, Rakesh S Singh, Evan M Sparano, Francesco Ricci, Miguel A González, Chantal Valeriani, José L F Abascal, Pablo G Debenedetti, Mikhail A Anisimov, Frédéric Caupin
One of the most promising frameworks for understanding the anomalies of cold and supercooled water postulates the existence of two competing, interconvertible local structures. If the non-ideality in the Gibbs energy of mixing overcomes the ideal entropy of mixing of these two structures, a liquid-liquid phase transition, terminated at a liquid-liquid critical point, is predicted. Various versions of the "two-structure equation of state" (TSEOS) based on this concept have shown remarkable agreement with both experimental data for metastable, deeply supercooled water and simulations of molecular water models...
January 21, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28108926/prospective-associations-between-peer-victimization-and-dispositional-mindfulness-in-early-adolescence
#5
Nathaniel R Riggs, Samantha M Brown
Peer victimization is associated with several mental health and behavioral problems during childhood and adolescence. Identifying prospective associations between victimization and factors known to protect against these problems may ultimately contribute to more precise developmental models for victimization's role in behavioral and mental health. This study tested prospective associations between peer victimization and dispositional mindfulness, defined by non-judgmental and accepting awareness of the constant stream of lived experience, during early adolescence...
January 20, 2017: Prevention Science: the Official Journal of the Society for Prevention Research
https://www.readbyqxmd.com/read/28108188/parental-expectations-and-child-screen-and-academic-sedentary-behaviors-in-china
#6
Miao Li, Hong Xue, Weidong Wang, Youfa Wang
INTRODUCTION: This study examined sociodemographic patterns of parental expectations for academic performance, terminal degree, and future occupation for middle school students in China, and how these expectations influence students' screen-based and academic-related sedentary behaviors through parenting control practices. METHODS: Based on data collected in 2013-2014 from 19,487 Chinese middle school students, bivariate logistic regressions tested associations between sociodemographic variables and parental expectations; structural equation models tested associations between parental expectations and students' self-reported daily time on TV/Internet/homework, with parental controls as potential mediators...
January 17, 2017: American Journal of Preventive Medicine
https://www.readbyqxmd.com/read/28107428/effects-of-socioeconomic-status-and-social-support-on-violence-against-pregnant-women-a-structural-equation-modeling-analysis
#7
Marizélia Rodrigues Costa Ribeiro, Antônio Augusto Moura da Silva, Maria Teresa Seabra Soares de Britto E Alves, Rosângela Fernandes Lucena Batista, Cecília Cláudia Costa Ribeiro, Lilia Blima Schraiber, Heloisa Bettiol, Marco Antônio Barbieri
Few studies have used structural equation modeling to analyze the effects of variables on violence against women. The present study analyzed the effects of socioeconomic status and social support on violence against pregnant women who used prenatal services. This was a cross-sectional study based on data from the Brazilian Ribeirão Preto and São Luís birth cohort studies (BRISA). The sample of the municipality of São Luís (Maranhão/Brazil) consisted of 1,446 pregnant women interviewed in 2010 and 2011...
2017: PloS One
https://www.readbyqxmd.com/read/28107108/testing-a-model-of-sodium-reduction-in-hypertensive-older-thai-adults
#8
Pratsani Srikan, Bonnie Callen, Kenneth Phillips, Abbas Tavakoli, Ralph Brockett, Somchit Hanucharurnkul, Lora Beebe
Hypertensive older adults will benefit if there is a clear understanding of the factors related to sodium reduction. That would raise awareness of the causes, consequently reducing many health risks, lowering health care costs, and diminishing economic and social burden from high blood pressure. This study explored predictors of urinary sodium excretion. A cross-sectional, correlational study was conducted in 312 hypertensive older Thai adults. Questionnaires related to knowledge, self-care agency, self-care behavior of sodium reduction, and 24-hour urinary sodium analyses were used, followed by the application of structural equation modeling and the Analysis of Moment Structures program...
January 20, 2017: Journal of Nutrition in Gerontology and Geriatrics
https://www.readbyqxmd.com/read/28107107/title-tobacco-alcohol-and-drug-use-of-people-with-mood-and-anxiety-disorders-differential-impact-of-family-and-friends
#9
Eunji Nam, Sadaaki Fukui
OBJECTIVE: Substance use among people with mood and anxiety disorders is highly prevalent. The literature suggests that substance use among people with mood and anxiety disorders is linked to social relational factors, yet it has been rarely the case that studies explicitly examine the differential impact of family and friends. This study investigated the association between family relationships, friendships, and substance use among people with mood and anxiety disorders. METHODS: Using the National Survey of American Life, structural equation modeling tested the unique effects of family relationships and friendships on tobacco, alcohol, and drug use (n = 1,076)...
January 20, 2017: Journal of Dual Diagnosis
https://www.readbyqxmd.com/read/28106781/family-food-providers-perceptions-of-the-causes-of-obesity-and-effectiveness-of-weight-control-strategies-in-five-countries-in-the-asia-pacific-region-a-cross-sectional-survey
#10
Anthony Worsley, Wei Wang, Rani Sarmugam, Quynh Pham, Judhiastuty Februhartanty, Stacey Ridley
The rise of the middle classes in developing countries and the associated epidemiological transition raises the importance of assessing this population group's awareness of the causes of obesity and effective weight control strategies in order to develop effective health promotion strategies. The study aimed to examine the perceptions of the causes of obesity and weight control strategies held by middle class household food providers in Melbourne, Singapore, Shanghai, Indonesia and Vietnam. An online survey was conducted in late 2013, early 2014 among 3945 respondents...
January 18, 2017: Nutrients
https://www.readbyqxmd.com/read/28105961/associations-between-obesity-indicators-and-blood-pressure-in-chinese-adult-twins
#11
Chunxiao Liao, Wenjing Gao, Weihua Cao, Jun Lv, Canqing Yu, Shengfeng Wang, Qian Zhao, Zengchang Pang, Liming Cong, Hua Wang, Xianping Wu, Liming Li
Obesity is associated with blood pressure (BP), but the associations between different obesity indicators and BP have not reached agreement. Besides, both obesity and BP are influenced by genetic and environmental factors. Whether they share the same genetic or environmental etiology has not been fully understood. We therefore analyzed the relationship between different obesity indicators and BP components as well as the genetic and environmental contributions to these relationships in a Chinese adult twin sample...
February 2017: Twin Research and Human Genetics: the Official Journal of the International Society for Twin Studies
https://www.readbyqxmd.com/read/28105775/concordance-correlation-coefficients-estimated-by-generalized-estimating-equations-and-variance-components-for-longitudinal-repeated-measurements
#12
Miao-Yu Tsai
The concordance correlation coefficient (CCC) is a commonly accepted measure of agreement between two observers for continuous responses. This paper proposes a generalized estimating equations (GEE) approach allowing dependency between repeated measurements over time to assess intra-agreement for each observer and inter- and total agreement among multiple observers simultaneously. Furthermore, the indices of intra-, inter-, and total agreement through variance components (VC) from an extended three-way linear mixed model (LMM) are also developed with consideration of the correlation structure of longitudinal repeated measurements...
January 20, 2017: Statistics in Medicine
https://www.readbyqxmd.com/read/28104547/residential-eviction-and-exposure-to-violence-among-people-who-inject-drugs-in-vancouver-canada
#13
Mary Clare Kennedy, Ryan McNeil, M-J Milloy, Huiru Dong, Thomas Kerr, Kanna Hayashi
BACKGROUND: People who inject drugs (PWID) experience markedly elevated rates of physical and sexual violence, as well as housing instability. While previous studies have demonstrated an association between homelessness and increased exposure to violence among PWID, the relationship between residential eviction and violence is unknown. We therefore sought to examine the association between residential eviction and experiencing violence among PWID in Vancouver, Canada. METHODS: Data were derived from two open prospective cohort studies of PWID: the Vancouver Injection Drug Users Study (VIDUS) and the AIDS Care Cohort to evaluate Exposure to Survival Services (ACCESS)...
January 16, 2017: International Journal on Drug Policy
https://www.readbyqxmd.com/read/28103876/the-norwegian-version-of-the-qolibri-a-study-of-metric-properties-based-on-a-12%C3%A2-month-follow-up-of-persons-with-traumatic-brain-injury
#14
Helene Lundgaard Soberg, Cecilie Roe, Cathrine Brunborg, Nicole von Steinbüchel, Nada Andelic
BACKGROUND: Consequences after Traumatic brain injury (TBI) affect the injured person's self-image and quality of life. The purpose was to assess the health related quality of life (HRQoL) at 12 months after a TBI in patients admitted to regional trauma centres, and to evaluate the metric properties of the Norwegian version of the Quality of Life After Brain Injury (QOLIBRI) questionnaire. METHODS: Two hundred four patients with TBI of all severities were included...
January 19, 2017: Health and Quality of Life Outcomes
https://www.readbyqxmd.com/read/28103522/perceived-emotional-social-support-in-bereaved-spouses-mediates-the-relationship-between-anxiety-and-depression
#15
Nicholas C Jacobson, Kayla A Lord, Michelle G Newman
BACKGROUND: Prior research has shown that anxiety symptoms predict later depression symptoms following bereavement. Nevertheless, no research has investigated mechanisms of the temporal relationship between anxiety and later depressive symptoms or examined the impact of depressive symptoms on later anxiety symptoms following bereavement. METHODS: The current study examined perceived emotional social support as a possible mediator between anxiety and depressive symptoms in a bereaved sample of older adults (N =250)...
January 5, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28101860/the-structure-and-topology-of-%C3%AE-helical-coiled-coils
#16
Andrei N Lupas, Jens Bassler, Stanislaw Dunin-Horkawicz
α-Helical coiled coils constitute one of the most diverse folds yet described. They range in length over two orders of magnitude; they form rods, segmented ropes, barrels, funnels, sheets, spirals, and rings, which encompass anywhere from two to more than 20 helices in parallel or antiparallel orientation; they assume different helix crossing angles, degrees of supercoiling, and packing geometries. This structural diversity supports a wide range of biological functions, allowing them to form mechanically rigid structures, provide levers for molecular motors, project domains across large distances, mediate oligomerization, transduce conformational changes and facilitate the transport of other molecules...
2017: Sub-cellular Biochemistry
https://www.readbyqxmd.com/read/28101675/operative-planning-aid-for-optimal-endoscopic-third-ventriculostomy-entry-points-in-pediatric-cases
#17
Zsolt Zador, David J Coope, Abteen Mostofi, Ian D Kamaly-Asl
OBJECT: Endoscopic third ventriculostomy (ETV) uses anatomical spaces of the ventricular system to reach the third ventricle floor and create an alternative pathway for cerebrospinal fluid flow. Optimal ETV trajectories have been previously proposed in the literature, designed to grant access to the third ventricle floor without a displacement of eloquent periventricular structures. However, in hydrocephalus, there is a significant variability to the configuration of the ventricular system, implying that the optimal ETV trajectory and cranial entry point needs to be planned on a case-by-case basis...
January 18, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28100374/-study-of-disease-burden-of-chronic-hepatitis-b-and-c-patients-in-shanghai-based-on-bronfenbrenner-s-ecological-systems-theory-a-community-based-survey
#18
H Ren, Y Shi, W Meng, J Y Hu, Y H Chen, Q C Pan
Objective: To systemically analyze family burden, quality of life of chronic hepatitis B and C patients in Shanghai and related influencing factors. Methods: A representative sample of chronic hepatitis patients (n=1 478) and their family members (n=1 478) was randomly selected through a multi-stage cluster sampling from 30 communities in 10 districts of Shanghai. One patient and one family member of each family were interviewed using different questionnaires to collect related information. Based on Bronfenbrenner' s ecological systems, psychological measurement, two-level random intercept model and multivariable structural equation model were applied to determine the effects and directions of the factors between life quality of chronic hepatitis patients and family burden...
January 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28100146/examining-the-relationship-between-childhood-victimization-high-risk-behaviors-and-health-among-criminal-justice-involved-women
#19
Tanya Renn, Seana Golder, George Higgins, T K Logan, Katherine M Winham
The purpose of this study was to develop and test a conceptual model of the pathways through which childhood victimization influences adult health outcomes. Specifically, measures of high-risk behaviors, tobacco use, alcohol use, illegal substance use, and HIV risk behaviors were hypothesized to mediate the relationship between childhood victimization and adult physical health. The sample consisted of 406 women on probation and parole with a history of childhood victimization in Jefferson County, Kentucky. Structural equation modeling was used to examine the relationship between childhood victimization, high-risk behaviors, and physical health outcomes...
January 2017: Journal of Correctional Health Care
https://www.readbyqxmd.com/read/28100122/using-the-self-determination-theory-to-understand-chinese-adolescent-leisure-time-physical-activity
#20
Lijuan Wang
PURPOSES: This study applies the self-determination theory (SDT) to test the hypothesized relationships among perceived autonomy support from parents, physical education (PE) teachers, and peers, the fulfilment of psychological needs (i.e., autonomy, competence, and relatedness), autonomous motivation, and leisure-time physical activity of Chinese adolescents. METHOD: There are 255 grade six to eight student participants from four middle schools around Shanghai, China included in this study...
January 19, 2017: European Journal of Sport Science
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