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Latent growth mixture modeling

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https://www.readbyqxmd.com/read/28805406/does-change-in-self-perceived-problem-drinker-identity-relate-to-change-in-alcohol-use-an-examination-of-nontreatment-seeking-hazardous-drinkers
#1
Kevin S Montes, Ronda L Dearing, Eric D Claus, Katie Witkiewitz
Identity change is related to reductions in alcohol use among treatment seekers, but it is unclear the extent to which identity change is associated with reductions in alcohol use among nontreatment seeking hazardous drinkers. The goal of the current study was to examine whether change in problem drinker identity (i.e., self-reported identification as a problem or nonproblem drinker) was associated with reductions in heavy drinking among nontreatment seeking hazardous drinkers. Participants (n = 149) completed measures to assess alcohol use and were asked if they identified as a problem drinker at baseline and at 6-, 12-, 18-, and 24-month follow-ups...
August 14, 2017: Psychology of Addictive Behaviors: Journal of the Society of Psychologists in Addictive Behaviors
https://www.readbyqxmd.com/read/28782975/heterogeneity-in-development-of-aspects-of-working-memory-predicts-longitudinal-attention-deficit-hyperactivity-disorder-symptom-change
#2
Sarah L Karalunas, Hanna C Gustafsson, Nathan F Dieckmann, Jessica Tipsord, Suzanne H Mitchell, Joel T Nigg
The role of cognitive mechanisms in the clinical course of neurodevelopmental disorders is poorly understood. Attention Deficit Hyperactivity Disorder (ADHD) is emblematic in that numerous alterations in cognitive development are apparent, yet how they relate to changes in symptom expression with age is unclear. To resolve the role of cognitive mechanisms in ADHD, a developmental perspective that takes into account expected within-group heterogeneity is needed. METHOD: The current study uses an accelerated longitudinal design and latent trajectory growth mixture models in a sample of children ages 7-13 years carefully characterized as with (n = 437) and without (n = 297) ADHD to (a) identify heterogeneous developmental trajectories for response inhibition, visual spatial working memory maintenance, and delayed reward discounting and (b) to assess the relationships between these cognitive trajectories and ADHD symptom change...
August 2017: Journal of Abnormal Psychology
https://www.readbyqxmd.com/read/28763565/resilience-and-posttraumatic-stress-disorder-symptoms-in-national-guard-soldiers-deployed-to-iraq-a-prospective-study-of-latent-class-trajectories-and-their-predictors
#3
Melissa A Polusny, Christopher R Erbes, Mark D Kramer, Paul Thuras, Dave DeGarmo, Erin Koffel, Brett Litz, Paul A Arbisi
This study examined the prospective course of posttraumatic stress disorder (PTSD) symptoms in a cohort of National Guard soldiers (N = 522) deployed to combat operations in Iraq. Participants were assessed 4 times: 1 month before deployment, 2-3 months after returning from deployment, 1 year later, and 2 years postdeployment. Growth mixture modeling revealed 3 distinct trajectories: low-stable symptoms, resilient, 76.4%; new-onset symptoms, 14.2%; and chronic distress, 9.4%. Relative to the resilient class, membership in both the new-onset symptoms and chronic distress trajectory classes was predicted by negative emotionality/neuroticism, odds ratios (ORs) = 1...
August 2017: Journal of Traumatic Stress
https://www.readbyqxmd.com/read/28755622/trajectories-of-suicidal-ideation-over-6-months-among-482-outpatients-with-bipolar-disorder
#4
Ole Köhler-Forsberg, Trine Madsen, Ida Behrendt-Møller, Louisa Sylvia, Charles L Bowden, Keming Gao, William V Bobo, Madhukar H Trivedi, Joseph R Calabrese, Michael Thase, Richard C Shelton, Melvin McInnis, Mauricio Tohen, Terence A Ketter, Edward S Friedman, Thilo Deckersbach, Susan L McElroy, Noreen A Reilly-Harrington, Andrew A Nierenberg
INTRODUCTION: Suicidal ideation occurs frequently among individuals with bipolar disorder; however, its course and persistence over time remains unclear. We aimed to investigate 6-months trajectories of suicidal ideation among adults with bipolar disorder. METHODS: The Bipolar CHOICE study randomized 482 outpatients with bipolar disorder to 6 months of lithium- or quetiapine-based treatment including other psychotropic medications as clinically indicated. Participants were asked at 9 visits about suicidal ideation using the Concise Health Risk Tracking scale...
July 20, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28736899/trajectories-of-depressive-and-anxiety-symptoms-in-older-adults-a-6-year-prospective-cohort-study
#5
Sophie E Holmes, Irina Esterlis, Carolyn M Mazure, Yen Ying Lim, David Ames, Stephanie Rainey-Smith, Chris Fowler, Kathryn Ellis, Ralph N Martins, Olivier Salvado, Vincent Doré, Victor L Villemagne, Christopher C Rowe, Simon M Laws, Colin L Masters, Robert H Pietrzak, Paul Maruff
OBJECTIVE: Depressive and anxiety symptoms are common in older adults, significantly affect quality of life, and are risk factors for Alzheimer's disease. We sought to identify the determinants of predominant trajectories of depressive and anxiety symptoms in cognitively normal older adults. METHOD: Four hundred twenty-three older adults recruited from the general community underwent Aβ positron emission tomography imaging, apolipoprotein and brain-derived neurotrophic factor genotyping, and cognitive testing at baseline and had follow-up assessments...
July 24, 2017: International Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/28704581/from-childhood-to-adulthood-disease-activity-trajectories-in-childhood-onset-systemic-lupus-erythematosus
#6
Lily Siok Hoon Lim, Eleanor Pullenayegum, Brian M Feldman, Lillian Lim, Dafna D Gladman, Earl D Silverman
No previous study has studied the longitudinal disease course of childhood-onset SLE (cSLE). OBJECTIVES: 1) To assess distinguishable differences in disease activity trajectories in cSLE patients; 2) To determine baseline factors predictive of disease trajectory membership and 3) To assess if the different disease activity trajectories are associated with different damage trajectories. METHODS: This is a retrospective, longitudinal inception cohort of cSLE patients...
July 13, 2017: Arthritis Care & Research
https://www.readbyqxmd.com/read/28668344/maternal-thyroid-hormone-trajectories-during-pregnancy-and-child-behavioral-problems
#7
Joyce J Endendijk, Hennie A A Wijnen, Victor J M Pop, Anneloes L van Baar
There is ample evidence demonstrating the importance of maternal thyroid hormones, assessed at single trimesters in pregnancy, for child cognition. Less is known, however, about the course of maternal thyroid hormone concentrations during pregnancy in relation to child behavioral development. Child sex might be an important moderator, because there are sex differences in externalizing and internalizing behavioral problems. The current study examined the associations between maternal thyroid hormone trajectories versus thyroid assessments at separate trimesters of pregnancy and child behavioral problems, as well as sex differences in these associations...
July 11, 2017: Hormones and Behavior
https://www.readbyqxmd.com/read/28666053/background-and-design-of-the-symptom-burden-in-end-stage-liver-disease-patient-caregiver-dyad-study
#8
Lissi Hansen, Karen S Lyons, Nathan F Dieckmann, Michael F Chang, Shirin Hiatt, Emma Solanki, Christopher S Lee
Over half a million Americans are affected by cirrhosis, the cause of end-stage liver disease (ESLD). Little is known about how symptom burden changes over time in adults with ESLD and their informal caregivers, which limits our ability to develop palliative care interventions that can optimize symptom management and quality of life in different patient-caregiver dyads. The purpose of this article is to describe the background and design of a prospective, longitudinal descriptive study, "Symptom Burden in End-Stage Liver Disease Patient-Caregiver Dyads," which is currently in progress...
June 30, 2017: Research in Nursing & Health
https://www.readbyqxmd.com/read/28659295/infant-feeding-and-growth-trajectory-patterns-in-childhood-and-body-composition-in-young-adulthood
#9
Peter Rzehak, Wendy H Oddy, M Luisa Mearin, Veit Grote, Trevor A Mori, Hania Szajewska, Raanan Shamir, Sibylle Koletzko, Martina Weber, Lawrence J Beilin, Rae-Chi Huang, Berthold Koletzko
Background: Growth patterns of breastfed and formula-fed infants may differ, with formula-fed infants growing more rapidly than breastfed infants into childhood and adulthood.Objective: Our objectives were to identify growth patterns and investigate early nutritional programming potential on growth patterns at 6 y and on body composition at 20 y.Design: The West Australian Pregnancy Cohort (Raine) Study and 3 European cohort studies (European Childhood Obesity Trial, Norwegian Human Milk Study, and Prevention of Coeliac Disease) that collaborate in the European Union-funded Early Nutrition project combined, harmonized, and pooled data on full breastfeeding, anthropometry, and body composition...
August 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28641215/worry-and-cognitive-control-predict-course-trajectories-of-anxiety-in-older-adults-with-late-life-depression
#10
P Spinhoven, D C van der Veen, R C Oude Voshaar, H C Comijs
BACKGROUND: Many older adults with depressive disorder manifest anxious distress. This longitudinal study examines the predictive value of worry as a maladaptive cognitive emotion regulation strategy, and resources necessary for successful emotion regulation (i.e., cognitive control and resting heart rate variability [HRV]) for the course of anxiety symptoms in depressed older adults. Moreover, it examines whether these emotion regulation variables moderate the impact of negative life events on severity of anxiety symptoms...
May 19, 2017: European Psychiatry: the Journal of the Association of European Psychiatrists
https://www.readbyqxmd.com/read/28634437/latent-growth-curve-models-for-biomarkers-of-the-stress-response
#11
REVIEW
John M Felt, Sarah Depaoli, Jitske Tiemensma
Objective: The stress response is a dynamic process that can be characterized by predictable biochemical and psychological changes. Biomarkers of the stress response are typically measured over time and require statistical methods that can model change over time. One flexible method of evaluating change over time is the latent growth curve model (LGCM). However, stress researchers seldom use the LGCM when studying biomarkers, despite their benefits. Stress researchers may be unaware of how these methods can be useful...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28633558/an-introduction-to-bayesian-statistics-in-health-psychology
#12
Sarah Depaoli, Holly M Rus, James P Clifton, Rens van de Schoot, Jitske Tiemensma
The aim of the current article is to provide a brief introduction to Bayesian statistics within the field of health psychology. Bayesian methods are increasing in prevalence in applied fields, and they have been shown in simulation research to improve the estimation accuracy of structural equation models, latent growth curve (and mixture) models, and hierarchical linear models. Likewise, Bayesian methods can be used with small sample sizes since they do not rely on large sample theory. In this article, we discuss several important components of Bayesian statistics as they relate to health-based inquiries...
September 2017: Health Psychology Review
https://www.readbyqxmd.com/read/28600278/defining-and-predicting-patterns-of-early-response-in-a-web-based-intervention-for-depression
#13
Wolfgang Lutz, Alice Arndt, Julian Rubel, Thomas Berger, Johanna Schröder, Christina Späth, Björn Meyer, Wolfgang Greiner, Viola Gräfe, Martin Hautzinger, Kristina Fuhr, Matthias Rose, Sandra Nolte, Bernd Löwe, Fritz Hohagen, Jan Philipp Klein, Steffen Moritz
BACKGROUND: Web-based interventions for individuals with depressive disorders have been a recent focus of research and may be an effective adjunct to face-to-face psychotherapy or pharmacological treatment. OBJECTIVE: The aim of our study was to examine the early change patterns in Web-based interventions to identify differential effects. METHODS: We applied piecewise growth mixture modeling (PGMM) to identify different latent classes of early change in individuals with mild-to-moderate depression (n=409) who underwent a CBT-based web intervention for depression...
June 9, 2017: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/28585777/natural-course-of-co-occurring-ptsd-and-alcohol-use-disorder-among-recent-combat-veterans
#14
Kyle Possemato, Stephen A Maisto, Michael Wade, Kimberly Barrie, Emily M Johnson, Paige C Ouimette
Posttraumatic stress disorder (PTSD) and alcohol use disorder (AUD) commonly co-occur in veterans, yet little is known about the longitudinal course of PTSD and drinking in comorbid populations. This study assessed the natural course of daily alcohol consumption and weekly changes in PTSD symptoms in 112 recent combat veterans over the course of 11 months. Latent class growth mixture modeling was used to classify individuals into distinct classes with similar PTSD symptom and alcohol use growth trajectories...
June 6, 2017: Journal of Traumatic Stress
https://www.readbyqxmd.com/read/28582857/identification-of-successful-cognitive-aging-in-the-alzheimer-s-disease-neuroimaging-initiative-study
#15
Feng V Lin, Xixi Wang, Rachel Wu, George W Rebok, Benjamin P Chapman
The present prospective observational study aimed to identify the existence of successful cognitive agers among a group of well-defined cognitively healthy older adults (n = 354, mean age = 75 years), and to examine baseline individual-level predictors and associated health outcomes over time. Episodic memory (EM) and executive function (EF) composite scores and multiple health outcomes were obtained annually over 5 years. Potential individual-level predictors that were related to Alzheimer's disease pathology or genetic risk, neurodegeneration, and vascular risks were collected at baseline...
2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28482012/deployment-and-alcohol-use-in-a-military-cohort-use-of-combined-methods-to-account-for-exposure-related-covariates-and-heterogeneous-response-to-exposure
#16
David S Fink, Katherine M Keyes, Joseph R Calabrese, Israel Liberzon, Marijo B Tamburrino, Gregory H Cohen, Laura Sampson, Sandro Galea
Studies have shown that combat area deployment is associated with increases in alcohol use; however, studying the influence of deployment on alcohol use faces two complications. First, the military considers a confluence of factors before determining whether to deploy a service member, creating a nonignorable exposure and unbalanced comparison groups that inevitably complicate inference about the role of deployment itself. Second, regression analysis assumes that a single effect estimate can approximate the population's change in post-deployment alcohol use, which ignores that previous studies have documented that respondents tend to exhibit heterogeneous post-deployment drinking behaviors...
May 6, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28475250/iv-developments-in-the-analysis-of-longitudinal-data
#17
Kevin J Grimm, Pega Davoudzadeh, Nilam Ram
Longitudinal data analytic techniques include a complex array of statistical techniques from repeated-measures analysis of variance, mixed-effects models, and time-series analysis, to longitudinal latent variable models (e.g., growth models, dynamic factor models) and mixture models (longitudinal latent profile analysis, growth mixture models). In this article, we focus our attention on the rationales of longitudinal research laid out by Baltes and Nesselroade (1979) and discuss the advancements in the analysis of longitudinal data since their landmark paper...
June 2017: Monographs of the Society for Research in Child Development
https://www.readbyqxmd.com/read/28472529/linking-mastery-across-the-life-course-to-mobility-device-use-in-later-life
#18
Kenzie Latham-Mintus, Philippa J Clarke
Objectives: Mastery in older ages is shaped by earlier-life experiences. Prior research has demonstrated that mastery is associated with health-promoting behaviors; however, little research has examined whether mastery histories influence health behaviors such as mobility device use in later life. Method: Using 25 years of data from the Americans' Changing Lives Survey (N = 1,427), this research explores whether different trajectories of life course mastery influence the odds that an older adult will use a mobility device when experiencing functional impairment...
May 4, 2017: Journals of Gerontology. Series B, Psychological Sciences and Social Sciences
https://www.readbyqxmd.com/read/28460845/fitting-latent-variable-mixture-models
#19
Gitta H Lubke, Justin Luningham
Latent variable mixture models (LVMMs) are models for multivariate observed data from a potentially heterogeneous population. The responses on the observed variables are thought to be driven by one or more latent continuous factors (e.g. severity of a disorder) and/or latent categorical variables (e.g., subtypes of a disorder). Decomposing the observed covariances in the data into the effects of categorical group membership and the effects of continuous trait differences is not trivial, and requires the consideration of a number of different aspects of LVMMs...
April 17, 2017: Behaviour Research and Therapy
https://www.readbyqxmd.com/read/28436263/modern-methods-for-modeling-change-in-obesity-research-in-nursing
#20
Susan M Sereika, Yaguang Zheng, Lu Hu, Lora E Burke
Persons receiving treatment for weight loss often demonstrate heterogeneity in lifestyle behaviors and health outcomes over time. Traditional repeated measures approaches focus on the estimation and testing of an average temporal pattern, ignoring the interindividual variability about the trajectory. An alternate person-centered approach, group-based trajectory modeling, can be used to identify distinct latent classes of individuals following similar trajectories of behavior or outcome change as a function of age or time and can be expanded to include time-invariant and time-dependent covariates and outcomes...
April 1, 2017: Western Journal of Nursing Research
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