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Latent growth mixture modeling

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https://www.readbyqxmd.com/read/29150814/detecting-multiple-random-changepoints-in-bayesian-piecewise-growth-mixture-models
#1
Eric F Lock, Nidhi Kohli, Maitreyee Bose
Piecewise growth mixture models are a flexible and useful class of methods for analyzing segmented trends in individual growth trajectory over time, where the individuals come from a mixture of two or more latent classes. These models allow each segment of the overall developmental process within each class to have a different functional form; examples include two linear phases of growth, or a quadratic phase followed by a linear phase. The changepoint (knot) is the time of transition from one developmental phase (segment) to another...
November 17, 2017: Psychometrika
https://www.readbyqxmd.com/read/29145944/latent-national-subpopulations-of-early-education-classroom-disengagement-of-children-from-underresourced-families
#2
Paul A McDermott, Michael J Rovine, Marley W Watkins, Jessica L Chao, Clare W Irwin, Roland Reyes
This research examined the latent developmental patterns for early classroom disengagement among children from some of the most underresourced families in the nation. Based on standardized teacher observations from the Head Start Impact Study, a nationally representative sample of children (N=1377) was assessed for manifestations of reticent/withdrawn and low energy behavior over four years spanning prekindergarten through first grade. For each form of disengagement, latent growth mixture modeling revealed three distinct subpopulations of change patterns featuring a dominant class associated with generally good classroom adjustment, a medial class that varied close to the population average over time, and a more extreme class (about 10% of the population) whose adjustment was relatively marginal and sometimes reached problematic levels...
December 2017: Journal of School Psychology
https://www.readbyqxmd.com/read/29140225/key-patterns-and-predictors-of-response-to-treatment-for-military-veterans-with-post-traumatic-stress-disorder-a-growth-mixture-modelling-approach
#3
A J Phelps, Z Steel, O Metcalf, N Alkemade, K Kerr, M O'Donnell, J Nursey, J Cooper, A Howard, R Armstrong, D Forbes
BACKGROUND: To determine the patterns and predictors of treatment response trajectories for veterans with post-traumatic stress disorder (PTSD). METHODS: Conditional latent growth mixture modelling was used to identify classes and predictors of class membership. In total, 2686 veterans treated for PTSD between 2002 and 2015 across 14 hospitals in Australia completed the PTSD Checklist at intake, discharge, and 3 and 9 months follow-up. Predictor variables included co-morbid mental health problems, relationship functioning, employment and compensation status...
November 15, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/29095564/a-risk-score-of-bmi-hba1c-and-triglycerides-predicts-future-glycemic-control-in-type-2-diabetes
#4
Dorijn Fl Hertroijs, Arianne Mj Elissen, Martijn Cgj Brouwers, Nicolaas C Schaper, Sebastian Köhler, Mirela C Popa, Stylianos Asteriadis, Steven H Hendriks, Henk J Bilo, Dirk Ruwaard
AIM: To identify, predict and validate distinct glycemic trajectories among patients with newly diagnosed type 2 diabetes treated in primary care, as a first step towards more effective patient-centred care. MATERIAL AND METHODS: We conducted a retrospective study on two cohorts using routinely collected individual patient data in primary care practices from two large Dutch diabetes patient registries. Participants included newly diagnosed, adult patients with type 2 diabetes between January 2006 and December 2014 (n = 10,528, development cohort; n = 3,777, validation cohort)...
November 2, 2017: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/29089147/mood-state-sub-types-in-adults-who-stutter-a-prospective-study
#5
Yvonne Tran, Elaine Blumgart, Ashley Craig
PURPOSE: Many adults who stutter have elevated negative mood states like anxiety and depressive mood. Little is known about how mood states change over time. The purpose of this study was to determine the trajectories or sub-types of mood states in adults who stutter over a 6 month period, and establish factors that contribute to these sub-types. METHOD: Participants included 129 adults who stutter who completed an assessment regimen at baseline, including a measure of mood states (Symptom Checklist-90-Revised)...
October 28, 2017: Journal of Fluency Disorders
https://www.readbyqxmd.com/read/29052653/distinct-trajectories-of-fatigue-and-sleep-disturbance-in-women-receiving-chemotherapy-for-breast-cancer
#6
Meagan Whisenant, Bob Wong, Sandra A Mitchell, Susan L Beck, Kathi Mooney
PURPOSE/OBJECTIVES: To examine self-reported severity of fatigue and disturbed sleep experienced daily by women with breast cancer during multiple cycles of chemotherapy, exploring potential classes of women experiencing similar symptom trajectories.
. DESIGN: In a secondary analysis, classes of women experiencing similar patterns of fatigue and disturbed sleep were identified.
. SETTING: Oncology clinics in the United States.
. SAMPLE: 166 women with breast cancer receiving chemotherapy...
November 1, 2017: Oncology Nursing Forum
https://www.readbyqxmd.com/read/29036483/a-decade-of-war-prospective-trajectories-of-post-traumatic-stress-disorder-symptoms-among-deployed-us-military-personnel-and-the-influence-of-combat-exposure
#7
Carrie J Donoho, George A Bonanno, Ben Porter, Lauren Kearney, Teresa M Powell
Post-traumatic stress disorder (PTSD) is a common psychiatric disorder among service members and veterans. The clinical course of PTSD varies across individuals, and patterns of symptom development have yet to be clearly delineated. Previous studies have been limited by convenience sampling, short follow-up periods, and inability to account for combat-related trauma. To determine the trajectories of PTSD symptoms among deployed military personnel with and without combat exposure, we used data from a population-based representative sample of 8,178 US service members participating in the Millennium Cohort Study from 2001-2011...
September 27, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/29034135/heterogeneity-in-trajectories-of-depression-in-response-to-divorce-is-associated-with-differential-risk-for-mortality
#8
Matteo Malgaroli, Isaac R Galatzer-Levy, George A Bonanno
Divorce is a common stressful event associated with both increased rates of depression and mortality. Given evidence of significant individual differences in depression following major life stressors, we examined if heterogeneous depression responses confer differential risk for mortality. Data from a population based longitudinal study was utilized to identify individuals who experienced divorce (n=559). Prospective trajectories of depression severity from before to after divorce were identified using latent growth mixture modeling, and rates of mortality between trajectories were compared as a distal outcome...
September 2017: Clinical Psychological Science
https://www.readbyqxmd.com/read/29026474/using-growth-mixture-modeling-for-clustering-asian-and-north-african-countries-on-the-road-injury-death-trend-1990-2010
#9
Maryam Salari, Anoshirvan Kazemnejad, Farid Zayeri
OBJECTIVES: The physical injuries and financial implications as a result of road accidents have serious economic, cultural, and social effects. We conducted this study to determine any changes in the trend of road-accident-related deaths in Asian and North African countries from 1990 to 2010. METHODS: The current study was carried out using data from the Global Burden of Disease database. First, the process was assessed using the growth curve divided into six regions...
September 2017: Oman Medical Journal
https://www.readbyqxmd.com/read/29019302/education-and-successful-aging-trajectories-a-longitudinal-population-based-latent-variable-modelling-analysis
#10
Theodore D Cosco, Blossom C M Stephan, Carol Brayne, Graciela Muniz
As the population ages, interest is increasing in studying aging well. However, more refined means of examining predictors of biopsychosocial conceptualizations of successful aging (SA) are required. Existing evidence of the relationship between early-life education and later-life SA is unclear. The Successful Aging Index (SAI) was mapped onto the Cognitive Function and Aging Study (CFAS), a longitudinal population-based cohort (n = 1,141). SAI scores were examined using growth mixture modelling (GMM) to identify SA trajectories...
October 11, 2017: Canadian Journal on Aging, la Revue Canadienne du Vieillissement
https://www.readbyqxmd.com/read/28994209/identifying-patterns-of-adaptation-in-breast-cancer-patients-with-cancer-related-fatigue-using-response-shift-analyses-at-subgroup-level
#11
Maxime Salmon, Myriam Blanchin, Christine Rotonda, Francis Guillemin, Véronique Sébille
Fatigue is the most prevalent symptom in breast cancer. It might be perceived differently among patients over time as a consequence of the differing patients' adaptation and psychological adjustment to their cancer experience which can be related to response shift (RS). RS analyses can provide important insights on patients' adaptation to cancer but it is usually assumed that RS occurs in the same way in all individuals which is unrealistic. This study aimed to identify patients' subgroups in which different RS effects on self-reported fatigue could occur over time using a combination of methods for manifest and latent variables...
November 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28966417/latent-class-survival-models-linked-by-principal-stratification-to-investigate-heterogenous-survival-subgroups-among-individuals-with-early-stage-kidney-cancer
#12
Brian L Egleston, Robert G Uzzo, Yu-Ning Wong
Rates of kidney cancer have been increasing, with small incidental tumors experiencing the fastest growth rates. Much of the increase could be due to increased use of CT scans, MRIs, and ultrasounds for unrelated conditions. Many tumors might never have been detected or become symptomatic in the past. This suggests that many patients might benefit from less aggressive therapy, such as active surveillance by which tumors are surgically removed only if they become sufficiently large. However, it has been difficult for clinicians to identify subgroups of patients for whom treatment might be especially beneficial or harmful...
2017: Journal of the American Statistical Association
https://www.readbyqxmd.com/read/28928691/class-enumeration-and-parameter-recovery-of-growth-mixture-modeling-and-second-order-growth-mixture-modeling-in-the-presence-of-measurement-noninvariance-between-latent-classes
#13
Eun Sook Kim, Yan Wang
Population heterogeneity in growth trajectories can be detected with growth mixture modeling (GMM). It is common that researchers compute composite scores of repeated measures and use them as multiple indicators of growth factors (baseline performance and growth) assuming measurement invariance between latent classes. Considering that the assumption of measurement invariance does not always hold, we investigate the impact of measurement noninvariance on class enumeration and parameter recovery in GMM through a Monte Carlo simulation study (Study 1)...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28913744/eight-year-latent-class-trajectories-of-academic-and-social-functioning-in-children-with-attention-deficit-hyperactivity-disorder
#14
George J DuPaul, Paul L Morgan, George Farkas, Marianne M Hillemeier, Steve Maczuga
We examined trajectories of academic and social functioning in children with attention-deficit/hyperactivity disorder (ADHD) to identify those who might be at risk for especially severe levels of academic and social impairment over time. We estimated a series of growth mixture models using data from two subsamples of children participating in the NIMH Collaborative Multisite Multimodal Treatment Study of Children with ADHD (MTA) including those with at least baseline and 96-month data for reading and mathematics achievement (n = 392; 77...
September 15, 2017: Journal of Abnormal Child Psychology
https://www.readbyqxmd.com/read/28910214/outcome-trajectories-and-prognostic-factors-for-suicide-and-self-harm-behaviors-in-patients-with-borderline-personality-disorder-following-one-year-of-outpatient-psychotherapy
#15
Shelley F McMain, Skye Fitzpatrick, Tali Boritz, Ryan Barnhart, Paul Links, David L Streiner
This study examined suicide and self-harm trajectories in 180 individuals with BPD receiving dialectical behavior therapy or general psychiatric management in a randomized controlled trial. Suicide and self-harm behaviors were assessed at baseline, every four months throughout treatment, and every 6 months over 2 years of follow-up. Latent class growth mixture modeling identified suicide and self-harm trajectories. Multinomial logistic regression analyses examined baseline patient characteristics. Three latent subgroups were identified...
September 14, 2017: Journal of Personality Disorders
https://www.readbyqxmd.com/read/28889814/distinguishing-postpartum-and-antepartum-depressive-trajectories-in-a-large-population-based-cohort-the-impact-of-exposure-to-adversity-and-offspring-gender
#16
C A Denckla, A D Mancini, N S Consedine, S M Milanovic, A Basu, S Seedat, G Spies, D C Henderson, G A Bonanno, K C Koenen
BACKGROUND: Distinguishing temporal patterns of depressive symptoms during pregnancy and after childbirth has important clinical implications for diagnosis, treatment, and maternal and child outcomes. The primary aim of the present study was to distinguish patterns of chronically elevated levels of depressive symptoms v. trajectories that are either elevated during pregnancy but then remit after childbirth, v. patterns that increase after childbirth. METHODS: The report uses latent growth mixture modeling in a large, population-based cohort (N = 12 121) to investigate temporal patterns of depressive symptoms...
September 11, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/28852901/self-competence-and-depressive-symptom-trajectories-during-adolescence
#17
Anna Vannucci, Christine McCauley Ohannessian
The purpose of this study was to examine the relationship between self-competence and subsequent depressive symptom trajectories, by gender, in a community sample of adolescents (N = 753; 53% female; 65% non-Hispanic White). Data were collected annually for three years beginning when adolescents were in the 10th and 11th grades (Age: M = 16.09, SD = 0.72 years). Adolescents provided self-reports of self-competence at baseline and depressive symptoms every year. In latent growth curve models examining the overall trajectory of depressive symptoms, higher global self-worth and self-competence in close friendships were significantly associated with greater decreases in depressive symptoms (ps < 0...
August 29, 2017: Journal of Abnormal Child Psychology
https://www.readbyqxmd.com/read/28846800/trajectories-of-posttraumatic-growth-among-us-military-veterans-a-4-year-nationally-representative-prospective-cohort-study
#18
J Tsai, R H Pietrzak
OBJECTIVE: This study examined the nature and determinants of predominant trajectories of posttraumatic growth (PTG) over time. METHOD: Using data from a prospective, nationally representative survey of 2718 US veterans assessed in 2011, 2013, and 2015, we used latent growth mixture modeling to identify PTG trajectories, and to examine key determinants of PTG trajectories from a comprehensive set of sociodemographic, military, health, and psychosocial variables...
November 2017: Acta Psychiatrica Scandinavica
https://www.readbyqxmd.com/read/28827610/body-mass-index-trajectories-in-the-first-two-years-and-subsequent-childhood-cardio-metabolic-outcomes-a-prospective-multi-ethnic-asian-cohort-study
#19
Izzuddin M Aris, Ling-Wei Chen, Mya Thway Tint, Wei Wei Pang, Shu E Soh, Seang-Mei Saw, Lynette Pei-Chi Shek, Kok-Hian Tan, Peter D Gluckman, Yap-Seng Chong, Fabian Yap, Keith M Godfrey, Michael S Kramer, Yung Seng Lee
We investigated body mass index (BMI) trajectories in the first 2 years of life in 1170 children from an Asian mother-offspring cohort in Singapore, and examined their predictors and associations with childhood cardio-metabolic risk measures at 5 years. Latent class growth mixture modelling analyses were performed to identify distinct BMI z-score (BMIz) trajectories. Four trajectories were identified: 73.2%(n = 857) of the children showed a normal BMIz trajectory, 13.2%(n = 155) a stable low-BMIz trajectory, 8...
August 21, 2017: Scientific Reports
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
#20
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...
September 2017: Psychology of Addictive Behaviors: Journal of the Society of Psychologists in Addictive Behaviors
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