Group-based multi-trajectory modeling

Nagin, Daniel S.; Jones, Bobby; Passos, Valéria Lima; Tremblay, Richard E.

doi:10.1177/0962280216673085

Cited by 459 publications

(419 citation statements)

References 15 publications

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“…In a recent analysis of 11 692 pregnancies in the Safe Passage Study, Dukes et al 20 performed Proc Traj to describe alcohol (drinks per drinking day) and tobacco exposure measured up to 4 times in pregnancy. Proc Traj is another LCA methodology that is available in SAS (SAS Institute, Inc, Cary, NC) 36 ; yet unlike kml, this methodology allows for formal checks of the validity of…”

Section: Discussionmentioning

confidence: 99%

Patterns of Prenatal Alcohol Use That Predict Infant Growth and Development

et al. 2019

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a, b the CIFASD BACKGROUND: Previous studies have had inconsistent findings regarding the quantity and frequency of prenatal alcohol exposure (PAE) that lead to deficits in growth and neurodevelopment. This may be due to imprecise methods of exposure classification. Our objective in this study was to employ longitudinal trajectory modeling of maternal drinking patterns associated with infant growth or neurodevelopmental deficits to a homogenous sample of mothers and infants. METHODS: From a sample of 471 pregnant women prospectively enrolled in a longitudinal study in the Ukraine, we performed a longitudinal cluster analysis of drinking patterns across gestation. We employed multivariable regression analyses to determine if each trajectory group was associated with infant weight, length, or head circumference at birth or psychomotor or mental deficits in infancy. RESULTS: We identified 5 distinct PAE trajectory groups: minimal or no PAE throughout gestation, low-to-moderate PAE with discontinuation early in gestation, low-to-moderate PAE sustained across gestation, moderate-to-high PAE with reduction early in gestation, and high PAE sustained across gestation. The highest-trajectory group was associated with deficits in infant weight and length at birth and deficits in psychomotor and mental performance at 6 to 12 months of age. Although confidence intervals overlapped, low-tomoderate sustained use was more strongly associated with most negative infant outcomes than moderate-to-high PAE with early reduction. CONCLUSIONS: With these findings, we confirm that high, sustained PAE confers the highest risk for adverse infant outcomes but demonstrate that even low-to-moderate PAE continued across gestation is associated with certain deficits. This approach may be used to help clinicians identify high-risk infants for targeted early intervention.

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Section: Discussionmentioning

confidence: 99%

Patterns of Prenatal Alcohol Use That Predict Infant Growth and Development

et al. 2019

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“…In the trajectory analysis of our study, the variables that depict working days and earnings were included in the same trajectory model (for example, Nagin et al 2016;Nummi et al 2017). We decided on this type of multi-trajectory analysis because, on their own, the variables depicting labour market attachment do not measure the risks and the phenomenon of labour market attachment comprehensively enough (Jones and Nagin 2007).…”

Section: Methods Of Analysismentioning

confidence: 99%

Gender Inequalities in Early Career Trajectories and Parental Leaves: Evidence from a Nordic Welfare State

2019

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Parental leaves are, besides unemployment, the main reason for career breaks in early career. Despite the progress in recent decades towards more equal sharing of childcare between mothers and fathers, the labour market risk due to parenting remains mainly with women. In this article, we analyse how parental leaves relate to early career trajectories of young Finnish men and women. Using longitudinal register data for 2005-2016 from the Finnish Centre for Pensions, we perform a multi-trajectory analysis of the labour market attachment of a cohort born in 1980. Based on working days and earnings, we find five distinct career trajectories for both men and women, with the majority being well attached to the labour market by their mid-30s. While men and women on average have similar employment lengths, the gender gap in earnings is already 30 per cent in this early career phase. One of the causes may be found in the highly unequal division of family-related career breaks; the duration of mothers' family-related leaves in this cohort was 13 times longer than fathers' leave spells. Long home care leaves were particularly common among mothers with low education levels and weak attachment to the labour market. Efforts towards a more equal division of parental leaves are needed in order to combat gender inequalities that already emerge in early career and potentially cause life-long disadvantages for women's careers, earnings and pensions.

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“…This approach was chosen as it provides a method for identifying distinctive clusters of individual trajectories and for profiling the characteristics of individuals within the clusters. This was important because growth curve methodologies model population variability in growth with multivariate continuous distribution functions, but the GBM approach utilizes a multinomial modeling strategy (Nagin, Jones, Passos, & Tremblay, ).…”

Section: Methodsmentioning

confidence: 99%

Developmental trajectories of adaptive behavior in autism spectrum disorder: a high‐risk sibling cohort

Sacrey

Zwaigenbaum

Bryson

et al. 2018

Child Psychology Psychiatry

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Background: Children with autism spectrum disorder (ASD) often experience impairments in adaptive behavior. Methods: Developmental trajectories of adaptive behavior in ASD were examined in children from high-risk (siblings of children diagnosed with ASD, n = 403) and low-risk (no family history of ASD, n = 163) families. Children were assessed prospectively at 12, 18, 24, and 36 months of age using the Vineland Adaptive Behavior Scales and underwent a blind independent diagnostic assessment for ASD at 36 months of age. Results: The semi-parametric group-based modeling approach using standard scores on the Adaptive Behavior Composite revealed three distinct developmental trajectories: (a) Group 1 (21.2% of sample) showed average performance at 12 months and a declining trajectory; (b) Group 2 (52.8% of the sample) showed average performance at 12 months with a slightly declining trajectory; and (c) Group 3 (26.0% of the sample) showed a higher level of adaptive behavior at 12 months and a stable trajectory. The Mullen Scales of Early Learning Early Learning Composite and the Autism Observation Scale for Infants total score at 6 and 12 months predicted trajectory membership. Conclusions: The results emphasize heterogeneous development associated with ASD and the need for interventions tailored to individual presentations.Children with ASD often have impairments in adaptive behavior.Impairments in adaptive behavior appear by the first year of life in toddlers who will later be diagnosed with the disorder.Adaptive behavior is influenced by early signs of ASD (AOSI) and developmental delays (Mullen), as well as diagnostic measures (ADOS and ADI). Parents are an important source of early behavioral information regarding ASD and adaptive skills. 704

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Group-based multi-trajectory modeling

Cited by 459 publications

References 15 publications

Patterns of Prenatal Alcohol Use That Predict Infant Growth and Development

Patterns of Prenatal Alcohol Use That Predict Infant Growth and Development

Gender Inequalities in Early Career Trajectories and Parental Leaves: Evidence from a Nordic Welfare State

Developmental trajectories of adaptive behavior in autism spectrum disorder: a high‐risk sibling cohort

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