Michel Boivin - Academia.edu (original) (raw)

Papers by Michel Boivin

Development and Psychopathology, Feb 1, 2013

Early disruptive behaviors, such as aggressive and hyperactive behaviors, known to be influenced ... more Early disruptive behaviors, such as aggressive and hyperactive behaviors, known to be influenced by genetic factors, have been found to predict early school peer relation difficulties, such as peer rejection and victimization. However, there is no consensus regarding the developmental processes underlying this predictive association. Genetically informative designs, such as twin studies, are well suited for investigating the underlying genetic and environmental etiology of this association. The main goal of the present study was to examine the possible establishment of an emerging gene-environment correlation linking disruptive behaviors to peer relationship difficulties during the first years of school. Participants were drawn from an ongoing longitudinal study of twins who were assessed with respect to their social behaviors and their peer relation difficulties in kindergarten and in Grade 1 through peer nominations measures and teacher ratings. As predicted, disruptive behaviors were concurrently and predictively associated with peer relation difficulties. Multivariate analyses of these associations indicate that they were mainly accounted for by genetic factors. These results emphasize the need to adopt an early and persistent prevention framework targeting both the child and the peer context to alleviate the establishment of a negative coercive process and its consequences.

Behavioural Brain Research, 2016

h i g h l i g h t s • Participants with ADHD symptoms less likely to reach trials to criteria on ... more h i g h l i g h t s • Participants with ADHD symptoms less likely to reach trials to criteria on spatial navigation task. • ADHD symptoms improved performance on the probe trial during spatial navigation task. • Children with ADHD symptoms rely on caudate dependent response learning strategies. • Repetition and reward strategies likely most effective for children exhibiting ADHD symptoms.

BMC Pregnancy and Childbirth, 2012

Background A web-based inventory was developed as a voluntary registry of Canadian pregnancy and ... more Background A web-based inventory was developed as a voluntary registry of Canadian pregnancy and birth cohort studies, with the objective to foster collaboration and sharing of research tools among cohort study groups as a means to enrich research in maternal and child health across Canada. Description Information on existing birth cohort studies conducted in Canada exclusively or as part of broader international initiatives was accessed by searching the literature in PubMed and PsychInfo databases. Additional studies were identified by enquiring about the research activities of researchers at Canadian universities or working in affiliated hospitals or research centres or institutes. Of the fifty-eight birth cohort studies initially identified, forty-six were incorporated into the inventory if they were of a retrospective and/or prospective longitudinal design and with a minimum of two phases of data collection, with the first period having occurred before, during, or shortly after ...

European child & adolescent psychiatry, Jan 22, 2017

Maternal depression symptoms (MDS) are a robust risk factor for internalising problems (IP) in th... more Maternal depression symptoms (MDS) are a robust risk factor for internalising problems (IP) in the offspring. However, the relative importance of MDS and other factors associated with it (i.e. other types of maternal psychopathology, maternal parenting practices, family characteristics) is not well understood. To (a) identify a group of children with high levels of IP between 6 and 12 years using combined maternal and teacher assessments and (b) to quantify the associations between trajectories of MDS during early childhood and children's IP trajectories before and after controlling for family factors associated with MDS. MDS and family factors were assessed in a population-based sample in Canada (n = 1537) between 5 months and 5 years. The outcome variable was membership in trajectories of teacher- and mother-rated IP between ages 6 and 12 years. Family factors were included as covariates in a multinomial logistic regression model. There was a strong association between MDS and...

Pour les avertissements, les signes conventionnels et les abréviationsvoir la section Rappel méth... more Pour les avertissements, les signes conventionnels et les abréviationsvoir la section Rappel méthodologique et avertissements. 1. Tous les intervieweurs de cette enquête étant de sexe féminin, nous utiliserons, dans la suite du texte, le terme intervieweure pour les désigner. « Le progrès est parfaitement collectif dans le temps et dans l'espace. Nous devons tant aux autres […]. Nous voulons une société de bonnes personnes […], car il y a un lien entre l'excellence de soi et l'excellence de tous 2 ».

Twin research and human genetics : the official journal of the International Society for Twin Studies, 2016

We analyzed birth order differences in means and variances of height and body mass index (BMI) in... more We analyzed birth order differences in means and variances of height and body mass index (BMI) in monozygotic (MZ) and dizygotic (DZ) twins from infancy to old age. The data were derived from the international CODATwins database. The total number of height and BMI measures from 0.5 to 79.5 years of age was 397,466. As expected, first-born twins had greater birth weight than second-born twins. With respect to height, first-born twins were slightly taller than second-born twins in childhood. After adjusting the results for birth weight, the birth order differences decreased and were no longer statistically significant. First-born twins had greater BMI than the second-born twins over childhood and adolescence. After adjusting the results for birth weight, birth order was still associated with BMI until 12 years of age. No interaction effect between birth order and zygosity was found. Only limited evidence was found that birth order influenced variances of height or BMI. The results wer...

Twin research and human genetics : the official journal of the International Society for Twin Studies, Jan 8, 2016

Bidirectional pathways between twin relationship quality and friendship quality were investigated... more Bidirectional pathways between twin relationship quality and friendship quality were investigated in a large longitudinal twin cohort. We examined negative and positive relationship features in 313 monozygotic (MZ) twins and 238 same-sex dizygotic (DZ) twins from ages 13 to 14 years, using latent structural modeling. Results showed stronger stability of the twin relationship quality compared to friendship quality. Positive features in the sibling relationship were associated with increased positive features in the relationship with the best friend a year later. In contrast, no significant association between negative sibling relationship features and change in negative friendship quality features was found. These findings speak to the important role of the sibling relationship in the development of good quality friendship relations in twins.

Pediatrics, 2015

To determine if child-care services (CCS) at a population level can reduce social inequalities in... more To determine if child-care services (CCS) at a population level can reduce social inequalities in academic performance until early adolescence. A 12-year population-based prospective cohort study of families with a newborn (n = 1269). Two CCS variables were estimated: "intensity" (low, moderate, and high number of hours) and "center-based CCS type" (early onset, late onset, and never exposed to center-based CCS). Children from low socioeconomic status (SES) families who received high-intensity CCS (any type), compared with those who received low-intensity CCS, had significantly better reading (standardized effect size [ES] = 0.37), writing (ES = 0.37), and mathematics (ES = 0.46) scores. Children from low-SES families who received center-based CCS, compared with those who never attended center care, had significantly better reading (ESearly onset = 0.68; ESlate onset = 0.37), writing (ESearly onset = 0.79), and mathematics (ESearly onset = 0.66; ESlate onset = 0....

Child development, 2015

This study examined the contribution of nonparental child-care services received during the presc... more This study examined the contribution of nonparental child-care services received during the preschool years to the development of social behavior between kindergarten and the end of elementary school with a birth cohort from Québec, Canada (N = 1,544). Mothers reported on the use of child-care services, while elementary school teachers rated children's shyness, social withdrawal, prosociality, opposition, and aggression. Children who received nonparental child-care services were less shy, less socially withdrawn, more oppositional, and more aggressive at school entry (age 6 years). However, these differences disappeared during elementary school as children who received exclusive parental care caught up with those who received nonparental care services. This "catch-up" effect from the perspective of children's adaptation to the social group is discussed.

Twin research and human genetics : the official journal of the International Society for Twin Studies, Jan 4, 2015

A trend toward greater body size in dizygotic (DZ) than in monozygotic (MZ) twins has been sugges... more A trend toward greater body size in dizygotic (DZ) than in monozygotic (MZ) twins has been suggested by some but not all studies, and this difference may also vary by age. We analyzed zygosity differences in mean values and variances of height and body mass index (BMI) among male and female twins from infancy to old age. Data were derived from an international database of 54 twin cohorts participating in the COllaborative project of Development of Anthropometrical measures in Twins (CODATwins), and included 842,951 height and BMI measurements from twins aged 1 to 102 years. The results showed that DZ twins were consistently taller than MZ twins, with differences of up to 2.0 cm in childhood and adolescence and up to 0.9 cm in adulthood. Similarly, a greater mean BMI of up to 0.3 kg/m2 in childhood and adolescence and up to 0.2 kg/m2 in adulthood was observed in DZ twins, although the pattern was less consistent. DZ twins presented up to 1.7% greater height and 1.9% greater BMI than ...

Aggressive behavior, Jan 14, 2015

In the current prospective study, we investigated (1) whether high and low BMI in early childhood... more In the current prospective study, we investigated (1) whether high and low BMI in early childhood puts a child at risk of victimization by their peers, and (2) whether being victimized increases BMI over the short- and long-term, independent of the effect of BMI on victimization. We also examined whether gender moderated these prospective associations. Participants were 1,344 children who were assessed yearly from ages 3 to 10 years as part of the Québec Longitudinal Study of Child Development (QLSCD). BMI predicted annual increases in victimization for girls aged 6 years and over; for boys aged 7 and 8 years of age, higher BMI reduced victimization over the school year. Further, victimization predicted annual increases in BMI for girls after age 6 years. When these short-term effects were held constant, victimization was also shown to have a three and 5-year influence on annual BMI changes for girls from age 3 years. These short- and long-term cross-lagged effects were evident when...

Canadian journal of psychiatry. Revue canadienne de psychiatrie, 2005

The Longitudinal Study of Child Development in Quebec (LSCDQ) is a community study of children th... more The Longitudinal Study of Child Development in Quebec (LSCDQ) is a community study of children that examines the risk factors, such as parental depression, linked to childhood psychopathology and maladaptive functioning. Our goal was to test the construct validity of an instrument to assess major depression in the parents. Parents of a representative sample of 2120 infants born in the province of Quebec in 1998 were selected. The major depression instrument was administered to the parents when the infants were aged 29 months. We tested the construct validity of the instrument by examining 1) sex differences in symptoms and prevalence, 2) the rank order of the prevalence of symptoms, 3) the clustering of symptoms, and 4) the association of depression with functional impairment and treatment-seeking behaviour. Depression was twice as common in mothers as in fathers. Most mothers and fathers who reported ever being depressed for 2 or more weeks had also experienced at least 4 additiona...

Journal of Child and Family Studies, 2015

We examined the distinct effects of early types of externally and internally controlling parentin... more We examined the distinct effects of early types of externally and internally controlling parenting (coercion and overprotection) on the development of childhood anxiety, while controlling for other important risk factors. Developmental trajectories of child anxiety were modeled from a Quebec representative sample (N = 2,120 children; 2.5-to 8-years of age). The relative impact of a host of putative child, mother, and family risk factors measured in early childhood was assessed using multinomial regressions. In addition to child shyness, maternal depression and family dysfunction, both coercive and overprotective parenting increase the risk for higher child anxiety. An interaction between maternal depression and overprotection was found, indicating that overprotection only increases child anxiety when maternal depression is high. Finally, maternal overprotection was also found to predict second grade teacher reports of children's anxiety.

Prevention science : the official journal of the Society for Prevention Research, 2013

This study investigates prospectively the development of single and repeated unintentional injuri... more This study investigates prospectively the development of single and repeated unintentional injuries from birth to 42 months in a random population sample of new-born children in Quebec (Canada) (N = 1,770). The outcome measures are single unintentional injuries (SUI) and repeated unintentional injuries (RUI). Results showed that the risk factors for SUI differed from the risk factors for RUI. SUI was predicted by mother's antisocial behavior during high school (OR = 1.72) and mother's age at first birth (OR = 1.82) with children from older mothers at higher likelihood of SUI. Also, boys (OR = 1.36) and hyperactive children (OR = 1.06) were at increased risk of SUI. RUI was predicted by maternal smoking during pregnancy (OR = 1.68), medication on prescription (OR = 1.53) and medication without prescription (OR = 1.54). Boys (OR = 2.01), children with a difficult temperament (OR = 1.13) and those with single mothers had higher rates of RUI (OR = 2.05). Maternal perception of i...

Psychophysiology, 2014

Little empirical evidence exists on the comparability of heart rate variability (HRV) quantificat... more Little empirical evidence exists on the comparability of heart rate variability (HRV) quantification methods commonly used in infants. The aim was to compare three methods of HRV estimation: 1) fast Fourier transform (FFT), 2) autoregressive (AR) and 3) the Porges methods. HRV was estimated in 63 healthy 5-month-old infants. HRV parameters were strongly correlated across methods (.92-.99) but yielded significantly different mean HRV estimates (Porges method > FFT > AR). There was no systematic bias over the whole range of values between the two spectral approaches while differences between the Porges method and the spectral estimates were systematically greater for larger values. Additional comparative studies are needed to explore the between-method agreement across a range of physiological conditions.

International Journal of Behavioral Nutrition and Physical Activity, 2013

Background: Eating behavior may be implicated in the increasing prevalence of overweight and obes... more Background: Eating behavior may be implicated in the increasing prevalence of overweight and obesity, presumably in relation to easy access to energy-dense and highly palatable foods. Objective: The aim of the present study was to disentangle genetic and environmental influences on eating behavior in a populationbased cohort of male twins. Design: The study included 326 dizygotic and 456 monozygotic male twin pairs aged 23-29 y from Sweden. The revised 21-item version of the Three-Factor Eating Questionnaire (TFEQ-R21) was used to assess eating behavior. This validated instrument consists of 3 dimensions: cognitive restraint, emotional eating, and uncontrolled eating. Structural equation modeling was used to estimate the heritability of eating behavior. Results: Cognitive restraint was the only TFEQ-R21 scale that significantly correlated with BMI (r ҃ 0.39, P 0.0001). The best-fitted models gave a heritability of 59% (95% CI: 52%, 66%) for cognitive restraint, 60% (95% CI: 52%, 67%) for emotional eating, and 45% (95% CI: 36%, 53%) for uncontrolled eating. Conclusions: These results show the great importance of genetic factors in the eating behavior of a large, unselected population of young adult male twins. Nonshared environmental factors were also important, whereas shared environmental factors did not contribute to eating behavior.

Infant Mental Health Journal, 2012

We know relatively little about the development of disruptive behaviors (DBs), and gender differe... more We know relatively little about the development of disruptive behaviors (DBs), and gender differences therein. The objective of this study was to describe the continuity and discontinuity in the degree to which young children in the general population are reported to exhibit specific DBs over time. Data came from the Québec Longitudinal Study of Child Development. First, the results show that relatively few children exhibit DBs on a frequent basis at 41 months of age. Second, the results show that a majority of children who exhibit a particular DB on a frequent basis at 41 months of age did not do so 1 year earlier. In addition, a majority of children who exhibited a particular DB on a frequent basis at 29 months of age no longer do so 1 year later. Third, gender differences in DBs (boys > girls) are either emerging or at least increasing in magnitude between 29 and 41 months of age. Consistent with the canalization of the behavioral development principle, children who exhibited ...

Psychological Medicine, 2021

BackgroundPeer victimization is associated with a wide range of mental health problems in youth, ... more BackgroundPeer victimization is associated with a wide range of mental health problems in youth, yet few studies described its association with mental health comorbidities.MethodsTo test the association between peer victimization timing and intensity and mental health comorbidities, we used data from 1216 participants drawn from the Quebec Longitudinal Study of Child Development, a population-based birth cohort. Peer victimization was self-reported at ages 6–17 years, and modeled as four trajectory groups: low, childhood-limited, moderate adolescence-emerging, and high-chronic. The outcomes were the number and the type of co-occurring self-reported mental health problems at age 20 years. Associations were estimated using negative binomial and multinomial logistic regression models and adjusted for parent, family, and child characteristics using propensity score inverse probability weights.ResultsYouth in all peer victimization groups had higher rates of co-occurring mental health pr...