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临床试验/NCT04873518
NCT04873518Unknown不适用

3D-Transition Study: Challenges and Resources of Children and Their Families During the Transition From Preschool to School, in a Pregnancy Cohort

St. Justine's Hospital3 个研究点 分布在 1 个国家目标入组 939 人开始时间: 2017年5月1日最近更新:
适应症

试验速览

阶段
不适用
发起方
入组人数
939
试验地点
3
主要终点
Academic skills scores - Change in academic performance.

研究概览

简要总结

The 3D-Transition study is a follow-up of the 3D Cohort pregnancy study (NCT03113331, which covered from the 1st trimester of pregnancy to age 2 years) as the children transition into kindergarten and first grade. It aims at clarifying prenatal and preschool predictors of challenging and successful transitions to school as measured by mental health and academic outcomes.

详细描述

Broad goal: This study seeks to understand how early vulnerabilities (externalizing or internalizing symptoms, or low neurodevelopmental/academic skills) turn into a rate of 10-15% of externalizing and internalizing mental health problems in school-aged children.

Rationale: Several lines of research guide this study. Functional impairments emerge for some children challenged by the transition to kindergarten and grade school. This risk is also thought to be programmed very early in life through cumulative early perinatal and psychosocial adversity. Further, interactions between the child, family and school environment during the transition may mitigate future impairments and this may be different for boys and girls. Finally, stress regulation mechanisms during the transition seem linked to early child vulnerabilities. This design allows us to contrast any combination of these mechanisms.

Aims: This study will clarify the role of:

  1. a mismatch between some child preschool vulnerability (externalizing, or internalizing symptoms, or low neurodevelopmental/academic skills) and the challenges of the transition from preschool to formal schooling;
  2. the experience of perinatal adversity and home chaos during child first years;
  3. supportive environments (high quality families or schools) during the school transition, and child sex; and
  4. the child stress response to the school transition, as assessed through salivary cortisol.

Method: Building on an existing pregnancy cohort (NCT03113331, which was structured around a triadic (mother-partner-child) framework, and which covered from the 1st trimester of pregnancy to age 2 years), the investigators have followed at least once 939 of 1551 families that agreed to a further follow-up past the initial study. Children in this cohort, who were seen in 3 waves based on age on September 30th, entered kindergarten in the fall of 2016, 2017, and 2018, respectively. A cohort-sequential longitudinal research design spanning pre-kindergarten to 2nd grade (ages 4 to 8 years), was implemented to follow each wave 6 times over 4 years. Cascade models will be used to address aims 1-3. The stress hormone cortisol will be examined on 11 days spread over a 16 months period for a subsample of 384 children to address aim 4, using growth curves models. This design is well suited and sufficiently powered to examine change processes over time, controlling for potential differences in waves and time of measurement effects.

研究设计

研究类型
Observational
观察模型
Family Based
时间视角
Prospective

入排标准

年龄范围
4 Years 至 10 Years(Child)
性别
All
接受健康志愿者

入选标准

  • All participating families from Clinical Trials NCT03113331 who had accepted a follow-up past the original pregnancy to age 2-years time span of that protocol.

排除标准

  • None for this follow up. See Clinical Trials NCT03113331 for original exclusion criteria.

结局指标

主要结局

Academic skills scores - Change in academic performance.

时间窗: Yearly, across 2 years: in Grades 1 and 2

Change in teacher reports on child academic achievement.

Neurodevelopment - Change in executive function

时间窗: Yearly, across 3 years: in Pre-Kindergarten, Kindergarten and Grade 1

Change in one latent factor score of executive function based on the following tasks: 1. Dimensional Change Card Sort (DCCS) measuring degree of cognitive flexibility 2. Random Object Span Task (ROST), a child version of the Self-Ordered Pointing (SOP) test measuring degree of working memory. 3. Wechsler's Digit Span subtest measuring degree of working memory.

Academic skills scores - Change in school readiness

时间窗: Yearly, across 2 years: in Pre-Kindergarten and Kindergarten

Change in the total score of The Lollipop Test comprising 4 dimensions: 1) Identification of Colors and Shapes, and Copying Shapes, 2) Picture Description, Position, and Spatial Recognition, 3) Identification of Numbers, and Counting, and 4) Identification of Letters, and Writing.

Academic skills scores - Change in receptive vocabulary

时间窗: Yearly, across 3 years: in Pre-Kindergarten, Kindergarten and Grade 1

Change in the total score of the Peabody Picture Vocabulary Test (PPVT) in French or English versions.

Mental health: Change in child mental health represented by one latent symptom score of the overarching category: internalizing symptoms.

时间窗: Six times across 4 years, in the spring during Pre-Kindergarten, then in the fall and spring of Kindergarten and Grade 1, then in the spring of Grade 2

The latent factor will be based on three informants which provide these mental health symptom ratings: mother-, father-, and teacher-reports as measured with age-appropriate non-overlapping items from the externalizing symptoms scales of: i) the Strengths and Difficulties Questionnaire (SDQ) ii) the Child Behavior Checklist (CBCL) iii) the Behavior scale of the Quebec Longitudinal Study of Child Development (QLSCD).

Neurodevelopment - Change in visuo-spatial ability

时间窗: Yearly, across 3 years: in Pre-Kindergarten, Kindergarten and Grade 1

Change in visuo-spatial ability based on the Wechsler's Block Design subtest.

Neurodevelopment - Change in social cognition

时间窗: Yearly, across 3 years: in Pre-Kindergarten, Kindergarten and Grade 1

Change in social cognition based on a latent factor of 1st and 2nd order Theory Of Mind (TOM) tests.

Neurodevelopment - Change in emotional development

时间窗: Yearly, across 3 years: in Pre-Kindergarten, Kindergarten and Grade 1

Change on the Pons and Harris (2000) Test of Emotion Comprehension (TEC) score.

Academic skills scores- Change in Number Knowledge abilities

时间窗: Yearly, across 3 years: in Pre-Kindergarten, Kindergarten and Grade 1

Change in a score combining The Number Knowledge Test (NKT) and the Mathematics subtest of the Canadian Achievement Test (CAT).

Academic skills scores - Change in Reading ability

时间窗: Grade 1 only

The Kaufman Assessment Battery for Children (K-ABC) reading ability test score in French or English versions.

Change in Morning and evening salivary cortisol levels

时间窗: Pre-Kindergarten to Grade 1 (Across a 16 months period from June in Year 1 to September in Year 2)

A subsample of 382 (out of 400 targeted) from cohorts 2 and 3 participated in a measurement burst design of 11 measurement days (2 samples/day), in June and August preceding entry into kindergarten (baseline), then twice one week apart at kindergarten entry in early September, then first Wednesday in each of November, February, and April. The following June, August, and early September measures were then repeated as the children moved towards entry to 1st grade.

Mental health: Change in child mental health represented by one latent symptom score of the overarching category: externalizing symptoms.

时间窗: Six times across 4 years, in the spring during Pre-Kindergarten, then in the fall and spring of Kindergarten and Grade 1, then in the spring of Grade 2

The latent factor will be based on three informants which provide these mental health symptom ratings: mother-, father-, and teacher-reports as measured with age-appropriate non-overlapping items from the externalizing symptoms scales of: i) the Strengths and Difficulties Questionnaire (SDQ) ii) the Child Behavior Checklist (CBCL) iii) the Behavior scale of the Quebec Longitudinal Study of Child Development (QLSCD).

Neurodevelopment - Change in visuo-motor integration

时间窗: Yearly, across 2 years: in Pre-Kindergarten and in Kindergarten

Change on the Beery Visuo-Motor integration subtest.

次要结局

未报告次要终点

研究者

发起方
St. Justine's Hospital
申办方类型
Other
责任方
Principal Investigator
主要研究者

Jean Séguin

Researcher

St. Justine's Hospital

研究点 (3)

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