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Multilevel analysis

Brooke T Kennamer, Marc S Arginteanu, Frank M Moore, A A Steinberger, Kevin C Yao, Yakov Gologorsky
OBJECT: This study sought to determine if a relationship exists between caudal instrumented level and revision rates, neck disability index scores, and cervical alignment in patients undergoing multilevel posterior cervical fusion. METHODS: This study examined a dataset of all patients undergoing posterior cervical decompression and fusion at ≥3 levels, terminating between C4 and T4, between January 2010 and December 2015, with at least 12 months of clinical follow-up...
October 17, 2018: World Neurosurgery
Maria Kristine Hagelskær Meyer, Anne Sofie Plum Christensen, Janne Schurmann Tolstrup, Peter Dalum, Brian Køster
Sunburn is associated with an increased risk for skin cancer. Denmark has one of the highest incidences of melanoma in the world, although it is a relatively northern country. The objective of this study was to determine whether sunburn is associated with demographic factors and health behaviour among young Danes. Cross-sectional data of >55,000 15- to 25-year-old students participating in the Danish National Youth Study were collected in 2014. Multilevel logistic regression analysis was used to determine associations...
October 17, 2018: Preventive Medicine
Scott Weich, Craig Duncan, Kamaldeep Bhui, Alastair Canaway, David Crepaz-Keay, Patrick Keown, Jason Madan, Orla McBride, Graham Moon, Helen Parsons, Swaran Singh, Liz Twigg
INTRODUCTION: Supervised community treatment (SCT) for people with serious mental disorders has become accepted practice in many countries around the world. In England, SCT was adopted in 2008 in the form of community treatment orders (CTOs). CTOs have been used more than expected, with significant variations between people and places. There is conflicting evidence about the effectiveness of SCT; studies based on randomised controlled trials (RCTs) have suggested few positive impacts, while those employing observational designs have been more favourable...
October 18, 2018: BMJ Open
Owen Nkoka, Ting-Wu Chuang, Kun-Yang Chuang, Yi-Hua Chen
BACKGROUND: This study aimed to identify factors at individual and community level influencing insecticide-treated net (ITN) usage among groups of women of childbearing age (WOCBA) in Malawi. METHODS: Factors influencing ITN usage in Malawi were assessed through interviews with 16,130 WOCBA (15-49 years) across 850 communities who participated in the 2015-2016 Malawi Demographic Health Survey. Multilevel logistic regression analysis was used. RESULTS: ITN use was similar between pregnant women and non-pregnant women with children under 5 years (45...
October 19, 2018: Malaria Journal
Bastien Perrot, Jean-Benoit Hardouin, Marie Grall-Bronnec, Gaëlle Challet-Bouju
OBJECTIVES: Internet gambling is often considered as a risk factor for gambling problems compared with land-based gambling. In parallel, this online activity generates data that can be useful to characterize Internet gambling behaviours. The objectives were to define a typology of online lotteries and scratch games gamblers' behaviours in order to identify early risky gambling behaviours and to classify gamblers in order to identify individuals with global risky gambling behaviours. METHODS: We performed a multilevel latent class cluster based on player account-based data of 10,000 gamblers from a French online operator...
October 18, 2018: International Journal of Methods in Psychiatric Research
Georges Baquet, Julien Aucouturier, François Xavier Gamelin, Serge Berthoin
To promote physical activity (PA) among children, few studies have reported long-term effects of playground marking during school recess. The aim of this study was to investigate the impact of a playground design on children's recess PA across 12 months and to evaluate the influence of covariates on the intervention effects with accelerometry data. Two hundred and eighty-three children (aged 6-11 years) were selected from 3 elementary schools. Two experimental schools received a recess-based intervention; the third one served as a control group...
2018: Frontiers in Public Health
Zhenxia Jiang, Cuizhen Xiu, Jun Yang, Xijiang Zhang, Minghua Liu, Xinlong Chen, Dianchang Liu
BACKGROUND: In China, the mode of HIV transmission and the types and routes of drug use have changed in the past decade. HIV testing amongst drug users needs further improvement. METHODS: Interviewer-administered questionnaires were used for data collection amongst 600 heterosexual drug users from the community and a municipal detention centre, where criminal suspects are supervised. Descriptive statistics, univariate analysis and multilevel logistic regression analysis were used to identify the factors associated with HIV testing amongst heterosexual drug users...
2018: PloS One
Barry A Farber, Jessica Y Suzuki, David A Lynch
This article meta-analytically reviews the research on the association between therapist positive regard (PR) and treatment outcome. The history of the construct of unconditional PR in client-centered theory and the efforts to clearly operationalize and measure this construct are reviewed. Several clinical examples are presented. The updated meta-analysis, which features expanded inclusion criteria and a larger number of studies (k = 64) than previous analyses, yielded a small positive association between PR and treatment outcome, g = ...
December 2018: Psychotherapy
Jessica P Lougheed, Lizbeth Benson, Pamela M Cole, Nilam Ram
The timing of events (e.g., how long it takes a child to exhibit a particular behavior) is often of interest in developmental science. Multilevel survival analysis (MSA) is useful for examining behavioral timing in observational studies (i.e., video recordings) of children's behavior. We illustrate how MSA can be used to answer 2 types of research questions. Specifically, using data from a study of 117 children 36 months old (SD = .38) during a frustration task, we examined the timing of their recurring anger expressions, and how this is related to (a) negative affectivity, a dimension of temperament related to the ability to regulate emotions, and (b) children's strategy use (distraction, bids to their mother)...
October 18, 2018: Developmental Psychology
Nele M Wessels, Johannes Zimmermann, Jeremy C Biesanz, Daniel Leising
A great range of person perception phenomena may be conceptualized in terms of how much perceivers know about the targets, how much they like the targets, and how these factors relate to the extent to which target descriptions reflect actual target characteristics and/or evaluative bias. We present a comprehensive empirical analysis of this interplay in two studies, the second (targets: N = 189, informants: N = 1352) being a preregistered replication of the first (targets: N = 73, informants: N = 549). Using multilevel profile analyses, we investigated how liking and knowing are differentially associated with judgments' normative accuracy (i...
October 18, 2018: Journal of Personality and Social Psychology
Łukasz Kubik, Roman Kaliszan, Pawel Wiczling
The objective of this work was to develop a multilevel (hierarchical) model based on isocratic reversed phase high-performance chromatographic data, collected in methanol and acetonitrile for 58 chemical compounds. Such multilevel model is a regression model of the analyte-specific chromatographic measurements, in which all the regression parameters are given a probability model. It is a fundamentally different approach from the most common approach where parameters are separately estimated for each analyte (without sharing information across analytes and different organic modifiers)...
October 18, 2018: Analytical Chemistry
Alvisa Palese, Silvia Gonella, Luca Grassetti, Anne Destrebecq, Irene Mansutti, Stefano Terzoni, Lucia Zannini, Pietro Altini, Anita Bevilacqua, Anna Brugnolli, Adriana Dal Ponte, Laura De Biasio, Adriana Fascì, Silvia Grosso, Franco Mantovan, Oliva Marognolli, Raffaela Nicotera, Giulia Randon, Morena Tollini, Federica Canzan, Luisa Saiani, Valerio Dimonte
BACKGROUND: Easy-to-access tools have been demonstrated to improve evidence-based practice (EBP) competences among nursing students. However, students' perception of access to EBP tools (e.g., clinical practice guidelines [CPGs], protocols) is unknown. AIMS: To explore: (1) nursing students' opportunity to access EBP tools during their education, and (2) associated factors. METHODS: A national cross-sectional study including all Italian nursing programs...
October 17, 2018: Worldviews on Evidence-based Nursing
Kathryn Graham, Sharon Bernards, Anne-Marie Laslett, Gerhard Gmel, Sandra Kuntsche, Sharon Wilsnack, Kim Bloomfield, Ulrike Grittner, Angela Taft, Ingrid Wilson, Samantha Wells
Both living with children and alcohol consumption are positively associated with intimate partner violence (IPV). We assessed their combined relationship with physical IPV (P-IPV) victimization and perpetration, and explored possible moderating roles of sex and culture. Data included 15 surveys of 13,716 men and 17,832 women in 14 countries from the GENACIS (Gender, Alcohol, and Culture: An International Study) collaboration. P-IPV was measured as victim of physical aggression by an intimate partner (Vic-Only), perpetrator of physical aggression toward a partner (Perp-Only), or both victim and perpetrator (i...
October 17, 2018: Journal of Interpersonal Violence
Giuseppe Nicola Giordano, Jan Mewes, Alexander Miething
BACKGROUND: Within public health research, generalised trust has been considered an independent predictor of morbidity and mortality for over two decades. However, there are no population-based studies that have scrutinised both contextual-level and individual-level effects of generalised trust on all-cause mortality. We, therefore, aim to investigate such associations by using pooled nationally representative US General Social Survey (GSS) data linked to the National Death Register (NDI)...
October 15, 2018: Journal of Epidemiology and Community Health
Yun-Xia Luo, Xin-Yue Wang, Yu-Jie Huang, Shu-Huan Fang, Jun Wu, Yong-Bin Zhang, Tian-Qin Xiong, Cong Yang, Jian-Gang Shen, Chuan-Lan Sang, Qi Wang, Jian-Song Fang
Liver injury remains a significant global health problem and has a variety of causes, including oxidative stress (OS), inflammation, and apoptosis of liver cells. There is currently no curative therapy for this disorder. Sanwei Ganjiang Prescription (SWGJP), derived from traditional Chinese medicine (TCM), has shown its effectiveness in long-term liver damage therapy, although the underlying molecular mechanisms are still not fully understood. To explore the underlining mechanisms of action for SWGJP in liver injury from a holistic view, in the present study, a systems pharmacology approach was developed, which involved drug target identification and multilevel data integration analysis...
October 2018: Chinese Journal of Natural Medicines
Anthony D'Oro, Zorica Buser, Darrel Scott Brodke, Jong-Beom Park, Sangwook Tim Yoon, Jim Aimen Youssef, Hans-Joerg Meisel, Kristen Emmanuel Radcliff, Patrick Hsieh, Jeffrey Chun Wang
Study Design: Retrospective review. Purpose: To identify the trends in stimulator use, pair those trends with various grafting materials, and determine the influence of stimulators on the risk of revision surgery. Overview of Literature: A large number of studies has reported beneficial effects of electromagnetic energy in healing long bone fractures. However, there are few clinical studies regarding the use of electrical stimulators in spinal fusion...
October 16, 2018: Asian Spine Journal
Gabriel Liu, Jun Hao Tan, Changwei Yang, John Ruiz, Hee-Kit Wong
Study Design: Retrospective cohort study. Purpose: To report on spinal fusion assessment using computed tomography (CT) after adult spinal deformity (ASD) surgery using ultra-low dose recombinant human bone morphogenetic protein 2 (RhBMP-2). Overview of Literature: The reported dose of RhBMP-2 needed for successful spinal posterolateral fusion in ASD ranges from 10 to 20 mg per spinal level. This study reports the use of ultra-low dose of RhBMP-2 (0...
October 16, 2018: Asian Spine Journal
Joukje C Swinkels, Marjolein I Broese van Groenou, Alice de Boer, Theo G van Tilburg
Background and Objectives: The general view is that partner-caregiver burden increases over time but findings are inconsistent. Moreover, the pathways underlying caregiver burden may differ between men and women. This study examines to what degree and why partner-caregiver burden changes over time. It adopts Pearlin's Caregiver Stress Process Model, as it is expected that higher primary and secondary stressors will increase burden and larger amounts of resources will lower burden. Yet, the impact of stressors and resources may change over time...
October 12, 2018: Gerontologist
Tonje Holte Stea, Eline Tønnesson Tveter, Saskia J Te Velde, Frøydis Nordgård Vik, Knut-Inge Klepp, Elling Bere
BACKGROUND: The obesity epidemic presents a major public health challenge, and a poor diet quality has been identified as one of the most important contributing factors. Whereas a sufficient fruit and vegetable consumption has been associated with several positive health outcomes, the long-term effect on overweight and obesity is unclear. Thus, the aims of this study were to investigate if one year with free school fruit had any effect on weight status 14 years later, and if it affected the birth weight of the participants' children...
2018: PloS One
C Duvillier, A Rousseau, C Bouyer, F Goffinet, P Rozenberg
OBJECTIVE: Huge differences in cesarean delivery rate exist between maternities in a same region. In recent years, the cesarean delivery rate has increased in the low-risk population. The objective of this study was to assess the impact of organizational factors on the cesarean delivery occurence in a low-risk population. METHODS: We performed a population-based cohort study in the MYPA perinatal network from 2009 to 2015. A low-risk population was selected, keeping only groups 1 and 3 of the Robson classification...
October 11, 2018: Gynecologie, Obstetrique, Fertilite & Senologie
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