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Latent growth mixture modeling

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https://www.readbyqxmd.com/read/28028741/can-universal-sel-programs-benefit-universally-effects-of-the-positive-action-program-on-multiple-trajectories-of-social-emotional-and-misconduct-behaviors
#1
Robert Duncan, Isaac J Washburn, Kendra M Lewis, Niloofar Bavarian, David L DuBois, Alan C Acock, Samuel Vuchinich, Brian R Flay
Behavioral trajectories during middle childhood are predictive of consequential outcomes later in life (e.g., substance abuse, violence). Social and emotional learning (SEL) programs are designed to promote trajectories that reflect both growth in positive behaviors and inhibited development of negative behaviors. The current study used growth mixture models to examine effects of the Positive Action (PA) program on behavioral trajectories of social-emotional and character development (SECD) and misconduct using data from a cluster-randomized trial that involved 14 schools and a sample of predominately low-income, urban youth followed from 3rd through 8th grade...
February 2017: Prevention Science: the Official Journal of the Society for Prevention Research
https://www.readbyqxmd.com/read/28025095/a-cross-species-study-of-heterogeneity-in-fear-extinction-learning-in-relation-to-fkbp5-variation-and-expression-implications-for-the-acute-treatment-of-posttraumatic-stress-disorder
#2
Isaac R Galatzer-Levy, Raül Andero, Takehito Sawamura, Tanja Jovanovic, Santiago Papini, Kerry J Ressler, Seth Davin Norrholm
Deficits in fear extinction learning are hypothesized to underlie the development of posttraumatic stress disorder (PTSD). Such deficits may, in part, be due to genetic and epigenetic variation in the stress related gene FKBP5. Conversely, altering FKBP5 epigenetic responses during memory consolidation may rescue extinction deficits making it a target for acute intervention to prevent the development of PTSD. Study 1 (Humans) examines if FKBP5 single nucleotide polymorphisms (SNPs) and PTSD symptom domains (re-experiencing, avoidance/numbing, hyperarousal) are associated with abnormal fear extinction phenotypes identified using latent growth mixture modeling (LGMM)...
December 23, 2016: Neuropharmacology
https://www.readbyqxmd.com/read/28010168/bayesian-analysis-of-piecewise-growth-mixture-models-with-skew-t-distributions-application-to-aids-studies
#3
Getachew A Dagne, Boubakari Ibrahimou
A major problem in HIV/AIDS studies is the development of drug resistance to antiretroviral (ARV) drug or therapy. Estimating the time at which such drug resistance would develop is usually sought. The goal of this article is to perform this estimation by developing growth mixture models with change-points and skew-t distributions based on longitudinal data. For such data, following ARV treatment, the profile of each subject's viral load tends to follow a 'broken stick' like growth trajectory, indicating multiple phases of decline and increase in viral loads...
December 23, 2016: Journal of Biopharmaceutical Statistics
https://www.readbyqxmd.com/read/27991806/are-reductions-in-pain-intensity-and-pain-related-distress-necessary-an-analysis-of-within-treatment-change-trajectories-in-relation-to-improved-functioning-following-interdisciplinary-acceptance-and-commitment-therapy-for-adults-with-chronic-pain
#4
Kevin E Vowles, Katie Witkiewitz, Jayne Levell, Gail Sowden, Julie Ashworth
OBJECTIVE: A key issue in chronic pain treatment concerns the changes necessary for improved physical and emotional functioning. Traditionally, reducing pain intensity and pain-related distress have been viewed as a prerequisite for these improvements. Alternatively, acceptance and commitment therapy, a behavior change approach, theorizes that pain and distress reduction are not necessary for improvement, rather responses must change, such that functioning improves in clearly specified areas (e...
December 19, 2016: Journal of Consulting and Clinical Psychology
https://www.readbyqxmd.com/read/27990129/developmental-trajectories-of-sleep-problems-from-childhood-to-adolescence-both-predict-and-are-predicted-by-emotional-and-behavioral-problems
#5
Biyao Wang, Corinna Isensee, Andreas Becker, Janice Wong, Peter R Eastwood, Rae-Chi Huang, Kevin C Runions, Richard M Stewart, Thomas Meyer, L G Brüni, Florian D Zepf, Aribert Rothenberger
Although the prevalence rates of sleep disorders at different stages of childhood and adolescence have been well established, little is known about the developmental course of general sleep problems. This also holds true for the bidirectional relationship between sleep problems and emotional as well as behavioral difficulties. This longitudinal study investigated the general pattern and the latent trajectory classes of general sleep problems from a large community sample aged 5-14 years. In addition, this study examined the predictive value of emotional/behavioral difficulties (i...
2016: Frontiers in Psychology
https://www.readbyqxmd.com/read/27935730/patterns-of-pregnancy-and-postpartum-depressive-symptoms-latent-class-trajectories-and-predictors
#6
Eivor Fredriksen, Tilmann von Soest, Lars Smith, Vibeke Moe
Depressive symptoms among pregnant and postpartum women are common. However, recent studies indicate that depressive symptoms in the perinatal period do not follow a uniform course, and investigations of the heterogeneity of time courses and associated factors are needed. The aim of this study was to explore whether depressive symptoms in the perinatal period could be categorized into several distinct trajectories of symptom development among subgroups of perinatal women, and to identify predictors of these trajectory groups...
December 1, 2016: Journal of Abnormal Psychology
https://www.readbyqxmd.com/read/27930587/body-mass-trajectories-diabetes-mellitus-and-mortality-in-a-large-cohort-of-austrian-adults
#7
Raphael Simon Peter, Ferdinand Keller, Jochen Klenk, Hans Concin, Gabriele Nagel
There are only few studies on latent trajectories of body mass index (BMI) and their association with diabetes incidence and mortality in adults.We used data of the Vorarlberg Health Monitoring & Prevention Program and included individuals (N=24,875) with BMI measurements over a 12-year period. Trajectory classes were identified using growth mixture modeling for predefined age groups (<50, 50-65, >65 years of age) and men, women separately. Poisson models were applied to estimate incidence and prevalence of diabetes for each trajectory class...
December 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27907223/-mental-retirement-trajectories-of-work-engagement-preceding-retirement-among-older-workers
#8
Astrid de Wind, Fenna Rm Leijten, Trynke Hoekstra, Goedele A Geuskens, Alex Burdorf, Allard J van der Beek
Objectives Before actual retirement, employees may already distance themselves from work, which could be referred to as "mental retirement". However, trajectories of work motivation, ie, work engagement, have not been studied yet. The present study aimed to (i) identify different trajectories of work engagement among older workers approaching the retirement age, and (ii) examine their associations with actual retirement. Methods In total 3171 employees aged 55-62 years, who participated in the Dutch Study on Transitions in Employment, Ability and Motivation were included in this study...
January 1, 2017: Scandinavian Journal of Work, Environment & Health
https://www.readbyqxmd.com/read/27889856/gender-differences-in-anxiety-trajectories-from-middle-to-late-adolescence
#9
Christine McCauley Ohannessian, Stephanie Milan, Anna Vannucci
Although developmental trajectories of anxiety symptomatology have begun to be explored, most research has focused on total anxiety symptom scores during childhood and early adolescence, using racially/ethnically homogenous samples. Understanding the heterogeneous courses of anxiety disorder symptoms during middle to late adolescence has the potential to clarify developmental risk models of anxiety and to inform prevention programs. Therefore, this study specifically examined gender differences in developmental trajectories of anxiety disorder symptoms (generalized anxiety disorder, panic disorder, and social anxiety disorder) from middle to late adolescence in a diverse community sample (N = 1000; 57 % female; 65 % White), assessed annually over 2 years...
November 26, 2016: Journal of Youth and Adolescence
https://www.readbyqxmd.com/read/27885145/trajectories-of-postpartum-depression-depression-in-italian-first-time-fathers
#10
Sara Molgora, Valentina Fenaroli, Matteo Malgaroli, Emanuela Saita
Paternal postpartum depression (PPD) has received little attention compared with maternal prenatal and postpartum depression, despite research reporting that paternal PPD concerns a substantial number of fathers. History of depression and antenatal depression have been identified as important PPD's risk factors, underlining the continuity of depressive symptoms during the transition to parenthood. However, only few studies have focused on the evolution of depressive symptoms with longitudinal research design...
November 23, 2016: American Journal of Men's Health
https://www.readbyqxmd.com/read/27859946/impact-of-childhood-asthma-on-growth-trajectories-in-early-adolescence-findings-from-the-childhood-asthma-prevention-study-caps
#11
Maria Movin, Frances L Garden, Jennifer L P Protudjer, Vilhelmina Ullemar, Frida Svensdotter, David Andersson, Andreas Kruse, Chris T Cowell, Brett G Toelle, Guy B Marks, Catarina Almqvist
BACKGROUND AND OBJECTIVE: Understanding the associations between childhood asthma and growth in early adolescence by accounting for the heterogeneity of growth during puberty has been largely unexplored. The objective was to identify sex-specific classes of growth trajectories during early adolescence, using a method which takes the heterogeneity of growth into account and to evaluate the association between childhood asthma and different classes of growth trajectories in adolescence...
November 8, 2016: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/27845522/trajectories-of-posttraumatic-stress-symptoms-after-civilian-or-deployment-traumatic-event-experiences
#12
David S Fink, Sarah Lowe, Gregory H Cohen, Laura A Sampson, Robert J Ursano, Robert K Gifford, Carol S Fullerton, Sandro Galea
OBJECTIVE: Growth mixture model studies have observed substantial differences in the longitudinal patterns of posttraumatic stress symptom (PTSS) trajectories. This variability could represent chance iterations of some prototypical trajectories or measurable variability induced by some aspect of the source population or traumatic event experience. Testing the latter, the authors analyzed a nationally representative sample of U.S. Reserve and National Guard members to identify the influence of civilian versus deployment trauma on the number of PTSS trajectories, the nature of these trajectories, and the proportion of respondents in each trajectory...
June 16, 2016: Psychological Trauma: Theory, Research, Practice and Policy
https://www.readbyqxmd.com/read/27826278/reading-ability-development-from-kindergarten-to-junior-secondary-latent-transition-analyses-with-growth-mixture-modeling
#13
Yuan Liu, Hongyun Liu, Kit-Tai Hau
The present study examined the reading ability development of children in the large scale Early Childhood Longitudinal Study (Kindergarten Class of 1998-99 data; Tourangeau et al., 2009) under the dynamic systems. To depict children's growth pattern, we extended the measurement part of latent transition analysis to the growth mixture model and found that the new model fitted the data well. Results also revealed that most of the children stayed in the same ability group with few cross-level changes in their classes...
2016: Frontiers in Psychology
https://www.readbyqxmd.com/read/27824597/growth-trajectories-and-asthma-rhinitis-in-children-a-longitudinal-study-in-taiwan
#14
Yang-Ching Chen, Tsan-Hon Liou, Pau-Chung Chen, Bor-Luen Chiang, Yao-Hsu Yang, Hsien-Yu Fan, Yungling Leo Lee
Studies have reported the effect of body weight in early childhood on asthma. However, the effect of growth patterns during school age on asthma and rhinitis has yet to be explored. We sought to investigate whether various growth patterns predict incident asthma and rhinitis.We conducted a nationwide longitudinal study (Taiwan Children Health Study) in 14 Taiwanese communities. Body mass index (BMI) z-scores of 4422 children aged 6-11 years were collected annually and distinct growth trajectory classes were identified using a latent generalised mixture model...
October 20, 2016: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/27821366/growth-mixture-modeling-of-post-combat-aggression-application-to-soldiers-deployed-to-iraq
#15
Oscar A Cabrera, Amy B Adler, Paul D Bliese
Prior research has found substantial heterogeneity in the course of key post-deployment outcomes, such as PTSD. The current paper employs growth mixture modeling to identify differential trajectories of change in the course of post-combat aggression. A Brigade Combat Team completed surveys within 72h of return from an Iraq deployment, 4 months later, and at 12 months after return. Based on model fit indices, analyses yielded four latent aggression trajectories: "low-stable", "delayed", "recovery", and "chronic"...
December 30, 2016: Psychiatry Research
https://www.readbyqxmd.com/read/27804177/targeted-use-of-growth-mixture-modeling-a-learning-perspective
#16
Booil Jo, Robert L Findling, Chen-Pin Wang, Trevor J Hastie, Eric A Youngstrom, L Eugene Arnold, Mary A Fristad, Sarah McCue Horwitz
From the statistical learning perspective, this paper shows a new direction for the use of growth mixture modeling (GMM), a method of identifying latent subpopulations that manifest heterogeneous outcome trajectories. In the proposed approach, we utilize the benefits of the conventional use of GMM for the purpose of generating potential candidate models based on empirical model fitting, which can be viewed as unsupervised learning. We then evaluate candidate GMM models on the basis of a direct measure of success; how well the trajectory types are predicted by clinically and demographically relevant baseline features, which can be viewed as supervised learning...
February 20, 2017: Statistics in Medicine
https://www.readbyqxmd.com/read/27800579/performance-of-growth-mixture-models-in-the-presence-of-time-varying-covariates
#17
Thierno M O Diallo, Alexandre J S Morin, HuiZhong Lu
Growth mixture modeling is often used to identify unobserved heterogeneity in populations. Despite the usefulness of growth mixture modeling in practice, little is known about the performance of this data analysis technique in the presence of time-varying covariates. In the present simulation study, we examined the impacts of five design factors: the proportion of the total variance of the outcome explained by the time-varying covariates, the number of time points, the error structure, the sample size, and the mixing ratio...
October 31, 2016: Behavior Research Methods
https://www.readbyqxmd.com/read/27796597/heterogeneity-in-perinatal-depression-how-far-have-we-come-a-systematic-review
#18
REVIEW
Hudson Santos, Xianming Tan, Rebecca Salomon
Despite perinatal depression (PND) being a common mental disorder affecting pregnant women and new mothers, limited attention has been paid to the heterogeneous nature of this disorder. We examined heterogeneity in PND symptom profiles and symptom trajectories. Literature searches revealed 247 studies, 23 of which were included in the final review. The most common statistical approaches used to explore symptom and trajectory heterogeneity were latent class model and growth mixture model. All but one study examined PND symptom trajectories and provided collective evidence of at least three heterogeneous patterns: low, medium, or chronic-high symptom levels...
October 29, 2016: Archives of Women's Mental Health
https://www.readbyqxmd.com/read/27793201/identifying-developmental-trajectories-of-body-mass-index-in-childhood-using-latent-class-growth-mixture-modelling-associations-with-dietary-sedentary-and-physical-activity-behaviors-a-longitudinal-study
#19
Maaike Koning, Trynke Hoekstra, Elske de Jong, Tommy L S Visscher, Jacob C Seidell, Carry M Renders
BACKGROUND: To date, many epidemiologic studies examining associations between obesity and dietary and sedentary/physical activity behaviors have focused on assessing Body Mass Index (BMI) at one point in time. Recent developments in statistical techniques make it possible to study the potential heterogeneity in the development of BMI during childhood by identifying distinct subpopulations characterized by distinct developmental trajectories. Using Latent Class Growth (Mixture) Modelling (LCGMM) techniques we aimed to identify BMI trajectories in childhood and to examine associations between these distinct trajectories and dietary, sedentary and physical activity behaviors...
October 28, 2016: BMC Public Health
https://www.readbyqxmd.com/read/27749744/early-adversity-psychopathology-and-latent-class-profiles-of-global-physical-health-from-preschool-through-early-adolescence
#20
Diana J Whalen, Andy C Belden, Rebecca Tillman, Deanna M Barch, Joan L Luby
OBJECTIVE: The purpose of the present report was to describe the longitudinal trajectories of physical health beginning during preschool and continuing into early adolescence; explore whether these trajectories were predicted by psychosocial adversity, family income-to-needs ratio, and psychiatric disorders occurring during the preschool period; and determine whether psychiatric disorders mediated these relations. METHODS: Participants included 296 children participating in a longitudinal study of early-onset psychopathology spanning 10 years...
November 2016: Psychosomatic Medicine
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