Mother-child Dyads Research Articles

ADHD Symptoms in Middle Childhood: The Role of Child Attachment and Maternal Emotional Availability in an Inpatient Clinical Sample.

Child ADHD symptoms are highly prevalent in middle childhood, alongside impairment in social functioning. The parent-child relationship has been shown to play an important role; however, studies investigating specific facets of the parent-child relationship in ADHD symptomatology in middle childhood have been neglected. We assumed that higher ADHD symptoms were associated with both (1) lower maternal emotional availability (EA) and (2) lower child attachment security. Moreover, (3) we aimed to explore which specific EA dimensions were associated with ADHD symptoms. In a socio-pediatric clinic in Germany, 71 inpatient mother-child dyads (child age: M = 7.70, SD = 1.06; n = 54 boys) were assessed. Clinical data about child ADHD symptoms (Child Behavior Checklist 6-18 subscale "attention deficit/hyperactivity problems"), maternal EA (free play), and child attachment representation (Attachment Story Completion Task, GEV-B) were analyzed cross-sectionally. Controlling for child oppositional behavior and sex, child ADHD symptoms were associated with overall maternal EA, and more specifically non-hostility, but not with child attachment representation. Our results imply that the role of parent-child interaction quality should be considered in the treatment of ADHD. Bidirectional effects cannot be ruled out.

Mother-Child Conversations about the Impact of Nutrition and Activities on a Short and Long-Term Basis

The following two studies examined mother-child conversations about the outcomes of engaging in healthy and unhealthy eating and physically active and sedentary activities. Study 1 (n= 29 mother-child dyads, M age = 4.6 years) examined the impact of healthy and unhealthy eating on a short and on a long term basis. Study 2 (n = 34 mother-child dyads, M age = 4 years 8 months) examined the impact of physically active and sedentary activities on a short and on a long term basis. Overall for Study 1, preschoolers elicited significantly more physiological and physical responses. For Study 2, preschoolers gave significantly more physiological and physical utterances than their mothers did. The results of these two studies demonstrate that preschoolers draw predominantly on the biological domain when reasoning about the impact of engaging in healthy/unhealthy nutrition and physically active and sedentary activities on a short and on a long-term basis.

The Effects of Breastfeeding on Childhood Behavioral and Emotional Development: A Prospective Cohort Study in China.

Breastfeeding could improve a child's health early on, but its long-term effects on childhood behavioral and emotional development remain inconclusive. We aimed to estimate the associations of feeding practice with childhood behavioral and emotional development. In this population-based birth cohort study, data on feeding patterns for the first 6 mo of life, the duration of breastfeeding, and children's emotional and behavioral outcomes were prospectively collected from 2489 mother-child dyads. Feeding patterns for the first 6 mo included exclusive breastfeeding (EBF) and non-exclusive breastfeeding (non-EBF, including mixed feeding or formula feeding), and the duration of breastfeeding (EBF or mixed feeding) was categorized into ≤6 mo, 7-12 mo, 13-18 mo, and >18 mo. Externalizing problems and internalizing problems were assessed with the Child Behavior Checklist (CBCL) and operationalized according to recommended clinical cutoffs, corresponding to T scores ≥64. Multivariable linear regression and logistic regression were used to evaluate the association of feeding practice with CBCL outcomes. The median (interquartile range) age of children at the outcome measurement was 32.0 (17.0) mo. Compared with non-EBF for the first 6 mo, EBF was associated with a lower T score of internalizing problems [adjusted mean difference (aMD): -1.31; 95% confidence interval (95% CI): -2.53, -0.10], and it was marginally associated with T scores of externalizing problems (aMD: -0.88; 95% CI: -1.92, 0.15). When dichotomized, EBF versus non-EBF was associated with a lower risk of externalizing problems (aOR: 0.54, 95% CI: 0.34, 0.87), and it was marginally associated with internalizing problems (aOR: 0.75, 95% CI: 0.54, 1.06). Regarding the duration of breastfeeding, breastfeeding for 13-18 mo versus ≤6 mo was associated with lower T scores of internalizing problems (aMD: -2.50; 95% CI: -4.43, -0.56) and externalizing problems (aMD: -2.75; 95% CI: -4.40, -1.10), and breastfeeding for >18 mo versus ≤6 mo was associated with lower T scores of externalizing problems (aMD: -1.88; 95% CI: -3.68, -0.08). When dichotomized, breastfeeding for periods of 7-12 mo, 13-18 mo, and >18 mo was associated with lower risks of externalizing problems [aOR (95% CI): 0.96 (0.92, 0.99), 0.94 (0.91, 0.98), 0.96 (0.92, 0.99), respectively]. Exclusive breastfeeding for the first 6 mo and a longer duration of breastfeeding, exclusively or partially, are beneficial for childhood behavioral and emotional development.

Developmental trajectories of mother-adolescent agreement on maternal autonomy support and their contributions to adolescents' adjustment.

Based on a multi-informant, longitudinal perspective on parent-adolescent relationships, this study examined patterns of convergence and divergence on maternal autonomy support. It had two aims: First, it sought to identify developmental trajectories of maternal autonomy support across adolescence from the perspectives of both mothers and adolescents. A second was to evaluate the longitudinal relation between self-reported and perceived maternal autonomy support by combining informants' trajectories. Data come from two 5-year longitudinal multi-informant studies (NS1 = 687 mother-child dyads; NS2 = 745 mother-child dyads). Each year, mothers and adolescents completed a questionnaire assessing maternal autonomy support. In both the samples, results of growth mixture modeling showed from mothers' perspective the presence of two distinct trajectories: high (91% of the sample) and moderate and relatively stable (9%) trajectories. From the adolescents' perspective, three trajectories were identified: high and relatively stable (75.7%), high and decreasing (11.8%), and moderate and increasing (12.5%). The normative mother-adolescent convergence pattern was one in which both adolescents and their mother reporting high levels of autonomy support. It was generally associated with more positive indices of adjustment, although academic achievement was highest when adolescents reported comparatively more autonomy support than their mother. The worst mother-adolescent convergence pattern tended to be one in which both reported initially moderate levels of autonomy support that remained relatively stable for mothers and increased for youths. Implications for parenting research and interventions are discussed. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Maternal autonomy support and intrusive control in the United States and China: Moment-to-moment associations with preschoolers' agency and defeat.

This study examines the moment-to-moment within-person associations between maternal and child behaviors during a challenging puzzle task and compares these associations between mother-child dyads from the United States (n = 99, 52 boys, Mchild age = 56.05 months, SD = 6.44) and China (n = 101, 46 boys, Mchild age = 57.41 months, SD = 6.58). Maternal autonomy support and intrusive control and child agency and defeat were rated in 15-s intervals by native and bicultural coders. Country was examined as a moderator of the moment-to-moment within-person associations between maternal and child behaviors. The results showed that for both U.S. and Chinese dyads, increases in maternal intrusive control predicted subsequent decreases in child agency, and increases in child defeat predicted subsequent increases in maternal autonomy support. Furthermore, increases in maternal autonomy support predicted subsequent increases in child defeat, but for the Chinese dyads only. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Postpartum depression: Impact on pregnant women and the postnatal physical, emotional, and cognitive development of their children. An ecological perspective.

Maternal mental health problems during pregnancy, childbirth, and the postpartum period are a challenge for public health. Not recognizing them hinders a timely diagnosis and treatment and has an impact on the mother and the establishment of the fundamental bond of the mother-child dyad. We must recognize the risk factors (age, socioeconomic status, mental health history, family dysfunction, unfavorable environment), clinical manifestations, and screening tools. There is evidence that the effect of stress, anxiety, and depression during pregnancy negatively affect fetal neurodevelopment and condition child developmental outcomes. Here we describe the negative impact of postpartum depression during the first months of life, which affects mother-child bonding, postnatal development (emotional, behavioral, cognitive, language), and the maintenance of breastfeeding. We also recognize protective factors that mitigate its effects. It is essential to establish preventive strategies and interdisciplinary diagnostic and therapeutic approaches to minimize the risks to the mother and her children.

Predicting externalizing behaviors in typically developing toddlers at 24 months: Insights from parenting at 12 months

Early observational assessment of parent and child behaviors may identify risk factors associated with the development of early child externalizing behaviors. This study aimed to examine factors associated with child externalizing behaviors at 24-months of age, including early maternal depression, family social risk and the parent-child relationship. Using a longitudinal design in 89 mother-child dyads (n = 43 female), maternal depressive symptoms and social risk were measured post-birth, and 12-months later parent-child interaction was assessed using the Emotional Availability Scales. To assess child externalizing behaviors, a parent-report questionnaire was administered when children were 24-months old. Increased early maternal depressive symptoms (p = .03), but not higher social risk (p = 0.17), were associated with higher child externalizing behaviors in children at age 24-months. After adjusting for early maternal depressive symptoms and familial social risk, lower levels of observed maternal structuring (β = −2.60, 95 %CI = −4.56, −0.64, p = .01) and lower levels of non-hostility (β = −3.39, 95 %CI −6.64, −0.14, p = .04) when the child was 12-months old were associated with higher parent-report of externalizing behaviors. However, the child’s observed interaction behavior was not associated with the mother’s report of child externalizing behavior. Interventions targeting specific post-natal maternal mental health and early parenting behaviors may reduce the risk for the development of later child externalizing problems.

Maternal thyroid function in early pregnancy and offspring school performance and neurodevelopmental disorders.

Thyroid hormones are critical for neural development, and during the first trimester of pregnancy the fetus relies fully on maternal thyroid hormone production. To investigate the associations between maternal thyroid hormone levels in the first trimester with the child's school performance, risk of attention deficit hyperactivity disorder (ADHD) and autism spectrum disorder (ASD). From the Copenhagen Primary Care Laboratory Pregnancy Database information on first trimester TSH and fT4 measurements in mothers of children born in 2000-2014 were linked with information on the child's standardized test scores in school, ADHD (patient record diagnoses and medication) and ASD (patient record diagnoses) until end of 2018. Associations of TSH and fT4 with the outcomes were individually assessed by linear mixed models and Cox regression models. The analyses were stratified by preexisting maternal thyroid disorders. TSH measurements were available for 17,909 mother-child dyads. Among those with children born in 2000-2009, 6,126 had a standardized school test score and were analyzed for the association between maternal thyroid hormone levels and child's school performance, and no support for an association was found. The association between thyroid hormone levels and child's risk of ADHD and ASD were analyzed for the 17,909 dyads and with no support for an association between thyroid hormone levels and these neurodevelopmental disorders. Stratification by preexisting maternal thyroid disorders did not affect the results. We found no evidence for associations between first trimester maternal thyroid hormone levels and child's school performance, or risk of ADHD or ASD.

Grandparents' and domestic helpers' childcare support: Implications for well‐being in Asian families

AbstractObjectiveTo investigate whether childcare support from grandparents and domestic helpers is associated with family well‐being in Singapore, with a focus on parent and child psychological well‐being as well as the quality of interactions and relationships within the family.BackgroundResearch on the implications of childcare support from maternal grandparents, paternal grandparents, and domestic helpers for family well‐being remains a gap in the literature. This involvement could enhance family well‐being through instrumental assistance and emotional encouragement in childcare. However, it could also create a negative emotional climate for families if the relationship of the mother with the grandparents or domestic helper is marked by conflict.MethodThis study used questionnaire data from 615 mother–child dyads from the birth cohort, Growing Up in Singapore Towards healthy Outcomes. The exposure variable was children's caregiving arrangements assessed at child ages 4.5 and 6 years, and the outcome variables were maternal well‐being, maternal parenting, and family functioning measured at concurrent assessments, and child well‐being assessed at age 10 years.ResultsChildcare support from maternal grandparents, but not from paternal grandparents or domestic helpers, showed concurrent associations with warmer parenting by mothers at child ages 4.5 and 6 years. Early childcare support from domestic helpers at child age 6 years predicted higher depressive symptoms in children at age 10 years.ConclusionOur findings suggest that childcare support from maternal grandparents, who are most likely to share a close bond and value system with mothers, could be most beneficial for families in Singapore.

Understanding the Impact of Socioeconomic Factors on Early Childhood Development in Marginalised Roma Communities: The Role of Parental Education and Household Equipment.

This study aimed to explore the effect of socioeconomic disadvantage accumulated in marginalised Roma communities (MRCs) on early childhood development and to assess the role of selected socioeconomic indicators in the association between belonging to MRCs vs. the majority and early childhood development. We obtained cross-sectional data from 232 mother-child dyads from MRCs and the majority population. The differences in early childhood development and background variables between the two groups were tested using chi-square and Mann-Whitney U tests. The moderated mediation was tested using PROCESS Macro in SPSS Model 14 on 5000 bootstrap samples. Statistically significant differences between children from MRCs and the majority were found in terms of maternal age, parental education, household equipment, as well as early childhood development. Household equipment moderated the indirect effect of being from MRCs vs. the majority on early childhood development through parental education. The indirect effect through parental education was high at a low household equipment level, reduced at an average level and non-significant at a high level of household equipment. Our study uncovered disparities in early childhood development between children from MRCs and the majority population. Parental education significantly influenced developmental outcomes, while household equipment mitigated its impact.

Seasonal Variations in Food Insecurity Prevalence of Mother-Child Dyads in Seme Sub-County, Kisumu, Kenya

Food insecurity remains a major impediment to the attainment of adequate health outcomes among the population. This is attributable to the adverse implications that food insecurity poses on the nutritional status of the populations. Globally, in the year 2021, an estimated population of 3.1 billion people (42%) faced unprecedented food crisis evident by inability to afford a healthy meal. Meanwhile, global rates of stunting attributable to food insecurity among children under the age of sixty months was 22.3%. In Kenya, close to 32% of the populations are acutely food insecure and require urgent food insecurity interventions. Kisumu County is a food import county; hence, decline in food supplies in the counties depends on for food supply results in food crisis amongst its populace. Women and children are disproportionately affected by food insecurity due to gender and age-related factors. Rural populations are often worse affected by food insecurity as evident by high rates of stunting experienced in rural areas when compared to overweight rates that are more in urban areas. It is on this basis that we sought to assess the prevalence of food insecurity among mother-child dyads drawn from Seme Sub-County, a rural area in the County of Kisumu, Kenya. We used a longitudinal study design adopting repeated cross-sectional measures to assess food security status of a sample of 201 mother-child pairs during planting and harvesting seasons. Food security status of mothers was assessed quantitatively using Household Food Insecurity Access Scale. Children’s food security status was assessed using Prevalence of Undernourishment as indicated by the anthropometric measurements. Qualitative data were further synthesized using Key Informant Interviews and Focus Group Discussions to complement quantitative data on prevalence of food insecurity among mother-child dyads. Data was analysed descriptively to indicate proportions of mothers and children depicting various food insecurity classifications. The mean HFIAS score for season I; 11.22 (± 5.36 SD) was statistically significantly different (higher) than mean HFIAS score for season II; 9.63 (± 5.18 SD) at α ≤ 0.05 (t-test: p=0.003). During planting season, a majority of the mothers; 134 (70.9%) experienced severe food insecurity prevalence and during harvesting season, a majority of the mothers; 117 (61.9%) experienced severe food insecurity prevalence. In planting season, almost three-quarters of the children; 137 (72.5%) were food secure as they had normal weight-for-age Z score (were not underweight). On the other hand, slightly higher than average; 102 (54.0%) of the children were food secure during harvesting season. These findings demonstrate suboptimal variations in prevalence of food insecurity across the two seasons. Mothers were more likely to experience severe food insecurity prevalence than children. Thus, there is a need to develop adequate interventions aimed at optimizing intra-household food distribution dynamics as means of ensuring adequate food security for both mothers and children in the study area

Attachment security and disorganisation at 18 months associated with developmental play level at 30 months

Play and exploration may develop within the child’s early attachment relationship to e.g. their mother. This study examined whether attachment security and disorganisation predicted the developmental level of play as well as the duration of pretend play in a low-risk sample. 64 mother-child dyads participated in an assessment of child attachment at 18 months (using the Strange Situation Procedure) and a 20-minute laboratory play setup including four different conditions at 30 months. Children’s play were coded using the 12 Step Play Scale. Generalized estimating equations showed a significant positive association between attachment security and developmental play level. Further, play level scores decreased as disorganisation increased in a story stem play condition. There were no significant associations regarding attachment and duration of pretend play. Our findings indicate the importance for a secure base that the child can explore from, leading to a more developmentally advanced play.

Associations of prenatal stress with 5-year-old children's executive function in a low socioeconomic status population.

Prenatal stress has a significant, but small, negative effect on children's executive function (EF) in middle and high socioeconomic status (SES) households. Importantly, rates and severity of prenatal stress are higher and protective factors are reduced in lower SES households, suggesting prenatal stress may be particularly detrimental for children's EF in this population. This study examined whether prenatal stress was linked to 5-year-old's EF in a predominantly low SES sample and child sex moderated this association, as males may be more vulnerable to adverse prenatal experiences. Participants were 132 mother-child dyads drawn from a prospective prenatal cohort. Mothers reported on their depression symptoms, trait anxiety, perceived stress, everyday discrimination, and sleep quality at enrollment and once each trimester, to form a composite prenatal stress measure. Children's EF was assessed at age 5 years using the parent-report Behavior Rating Inventory of Executive Function - Preschool (BRIEF-P) Global Executive Composite subscale and neuropsychological tasks completed by the children. Mixed models revealed higher prenatal stress was associated with lower BRIEF-P scores, indicating better EF, for females only. Higher prenatal stress was associated with lower performance on neuropsychological EF measures for both males and females. Results add to the limited evidence about prenatal stress effects on children's EF in low SES households.

Maternal psychological distress and temperament traits in children from infancy to late childhood.

Maternal psychological distress during pregnancy is associated with infant temperament. Whether associations persist into late childhood, whether maternal distress is associated with temperament change from infancy to late childhood, whether associations are independent of maternal concurrent distress, and whether maternal distress has sensitive exposure periods on child temperament remain unclear. Our study includes mother-child dyads from Finnish, prospective Prediction and Prevention of Preeclampsia and Intrauterine Growth Restriction study. The mothers completed the Center for Epidemiologic Studies Depression Scale, State Anxiety Inventory and Perceived Stress Scale: biweekly up to 14 times during pregnancy; once in infancy (at child age 4-12months); and once in late childhood (at child age 7-11years). They also completed the Infant Behavior Questionnaire Revised at the infancy (n=2538) and Temperament in Middle Childhood Questionnaire at the late childhood (n=2004; 1693 children had data at both follow-ups) follow-up on child negative affectivity, extraversion and effortful control. We examined the associations of maternal distress with child temperament with linear regression, linear mixed and Bayesian relevant lifecourse exposure models. Maternal distress during pregnancy was associated with higher negative affectivity and lower effortful control in children in infancy and late childhood. Maternal distress during pregnancy was also associated with increases in negative affectivity, decreases in effortful Control, and smaller decreases in extraversion from infancy to late childhood. The associations with late childhood temperament and temperament change were independent of maternal concurrent distress. Late childhood was a sensitive period for lifetime-to-date effects of maternal distress on late childhood negative affectivity and effortful control. Distress during pregnancy and infancy had smaller contributions. Maternal psychological distress during pregnancy is associated with individual differences and change in child temperament from infancy to late childhood. However, distress during pregnancy has a smaller effect on late childhood temperament than maternal concurrent distress.

Effect of postpartum depression and role of infant feeding practices on relative weight of child at 1 and 3 years of age

BackgroundChildhood obesity has increased and is considered one of the most serious public health challenges of the 21st century globally, and may be exacerbated by postpartum depression (PPD). The purpose of this study was to examine the association between PPD at 1st and 6th month postpartum, infant feeding practices, and body mass index (BMI) z-score of the child at one and three years of age.MethodsThis study used data from an ongoing prospective maternal-child birth cohort performed at the National Center for Child Health and Development (NCCHD) in suburban Tokyo, Japan with the period of recruitment from May 13, 2010 to November 28, 2013. Out of 2,309 total number of mothers, 1,279 mother–child dyads were assessed in the study. We performed multivariable linear regression analysis to examine the association between PPD and child’s BMI z-score stratified by the child’s age at 1 year and 3 years of age.ResultsThe prevalence of PPD at 1 month postpartum (17%) was found to be higher than at 6 months (12%). In multivariable linear regression analysis we observed that children at 3 years who had mothers with PPD at 6 months had, on average, a BMI z-score 0.25 higher than children of mothers who did not have PPD at 6 months (ß coefficient 0.25, 95% CI [0.04 to 0.46], p value 0.02), holding all other covariates constant. Also, initiation of weaning food when child is at six months of age was associated with higher BMI z-score of the child at 3 years after adjusting for all covariates (ß coefficient = 0.18, 95% CI [0.03 to 0.34], p-value < 0.05).ConclusionThe significant association between PPD at 6 months and child’s BMI z-score at 3 years of age, in conjunction with birth trends and high prevalence of PPD, can add to the body of evidence that there is need for multiple assessment across the first postpartum year to rule out PPD as early screening and early interventions may benefit both maternal health and child development outcomes. These findings can indicate the need for establishing support systems for care-giving activities for mothers with PPD.

Impact of hypertensive disorders of pregnancy and gestational diabetes mellitus on offspring cardiovascular health in early adolescence

Adverse pregnancy outcomes, including hypertensive disorders of pregnancy (HDP) and gestational diabetes mellitus (GDM), influence maternal cardiovascular heath (CVH) long after pregnancy, but their relationship to offspring CVH following in utero exposure remains uncertain. To examine associations of HDP or GDM with offspring CVH in early adolescence. This analysis used data from the prospective Hyperglycemia and Adverse Pregnancy Outcome (HAPO) Study from 2000 to 2006 and the HAPO Follow-Up Study from 2013 to 2016. This analysis included 3,317 mother-child dyads from 10 field centers, comprising 70.8% of HAPO Follow-Up Study participants. Those with pregestational diabetes and chronic hypertension were excluded. The exposures were having any HDP or GDM compared with not having HDP or GDM, respectively (reference). The outcome was offspring CVH at ages 10 to 14 years, based on four metrics: body mass index, blood pressure, total cholesterol level, and glucose level. Each metric was categorized as ideal, intermediate, or poor using a framework provided by the American Heart Association. The outcome was primarily defined as having at least one CVH metric that was non-ideal versus all ideal (reference), and secondarily as the number of non-ideal CVH metrics: at least one intermediate metric, one poor metric, or at least two poor metrics versus all ideal (reference). Modified Poisson regression with robust error variance was used and adjusted for covariates at pregnancy enrollment, including field center, parity, age, gestational age, alcohol or tobacco use, child's assigned sex at birth, and child's age at follow-up. Among 3,317 maternal-child dyads, the median (IQR) ages were 30.4 (25.6, 33.9) years for pregnant individuals and 11.6 (10.9, 12.3) years for children. During pregnancy, 10.4% of individuals developed HDP and 14.6% developed GDM. At follow-up, 55.5% of offspring had at least one non-ideal CVH metric. In adjusted models, having HDP (aRR 1.14; 95% CI 1.04, 1.25) or having GDM (aRR 1.10; 95% CI 1.02, 1.19) was associated with greater risk that offspring developed less-than-ideal CVH at ages 10 to 14 years. The above associations strengthened in magnitude as the severity of adverse CVH metrics increased (i.e., with the outcome measured as >1 intermediate, 1 poor, and >2 poor adverse metrics), albeit the only statistically significant association was with the "1-poor-metric" exposure. In this multi-national prospective cohort, pregnant individuals who experienced either HDP and GDM were at significantly increased risk of having offspring with worse CVH in early adolescence. Reducing adverse pregnancy outcomes and increasing surveillance with targeted interventions after an adverse pregnancy outcome should be studied as potential avenues to enhance long-term cardiovascular health in the offspring exposed in utero.

The Longitudinal Relationship Between Diet Quality and Executive Functioning Development of Hispanic Preschoolers in Houston, Texas

BackgroundDiet quality has been found to be related to cognitive health in school-aged children. However, this relationship remains understudied among Hispanic preschool-aged children, who are vulnerable to poor dietary habits and low cognitive development due to socioeconomic, cultural, and structural disparities. ObjectiveThis longitudinal study evaluated whether the diet quality of preschool-aged children would be associated with executive functions (EFs) in later childhood. DesignThis is a secondary analysis of a longitudinal study of Hispanic preschool-aged children (age 4 and 5 years) at baseline (Time 1) and 18 months (Time 2). Participants and settingThis study included 185 mother-child dyads with complete data at Time 1, recruited through Head Start centers in Houston, TX, beginning in 2011. Main outcome measuresMothers reported on their child’s dietary intake via 3 24-hour recalls, which was used to calculate Healthy Eating Index (HEI)-2010 component and total scores. Laboratory tasks assessed cold EFs (tapping and Flexible Item Selection Tasks) and hot EFs (delay of gratification and gift-wrapping tasks). Whereas higher scores on tapping, Flexible Item Selection Task, and delay of gratification tasks represent a high EF, higher scores in gift-wrapping task represent a low EF. Statistical analyses performedHierarchical linear regression analyses assessed the relationship between diet quality, as measured by HEI-2010 total and component scores, at Time 1 (independent variables) and EF outcomes (dependent variables) at Time 2, controlling for child sex, age, body mass index z score, and EF at Time 1. ResultsHEI-2010 component score for fatty acids (b = –.13; P = .04) and seafood and plant proteins (b = .09; P = .05), were respectively related to later cold and hot EFs of Hispanic preschool-aged children. Other HEI components or the overall score did not predict EFs. ConclusionsThis study shows that specific HEI components support cold and hot EFs development among Hispanic preschool-aged children, but total HEI-2010 score does not. Experimental research is needed to assess the influence of dietary interventions on cognitive development of Hispanic preschool-aged children.

How mothers talk to their children about failure, mistakes and setbacks is related to their children's fear of failure.

Many people fear failure and making mistakes. This fear can be transmitted from parents to children, suggesting that parental communication regarding failures and setbacks may play a critical role in shaping a child's perception of mistakes. In this study, we investigated how everyday parent-child conversations about setbacks influence children's fear of making mistakes. Drawing on the large pre-birth Growing Up in New Zealand cohort, we focused on a sub-sample of 231 mother-child dyads who engaged in a recorded conversations about a "recent disappointment or setback" when the children were 8 years old. Conversations between mothers and children about the recent disappointments were coded to identify whether parents recognised or acknowledge their child's emotional response, if action plans were discussed, and the types of resources that the child could draw on. The children also completed a questionnaire about their global self-worth and their fear of making mistakes. The discussion of clear action plans, in the absence of a discussion about collaborative resources, was found to be associated with an increased fear of making mistakes among children. Conversely, when mothers clearly acknowledged their child's emotions and discussed ways to work collaboratively with their child on future problems, there was a notable decrease in the child's fear of mistakes. However, it is noteworthy that many mothers in our study either minimally acknowledged or dismissed their child's emotions(40%), rarely discussed action plans (55%), or collaborative resources (79%)when discussing the recent setback.

Independent and Joint Effects of Prenatal Incense-Burning Smoke Exposure and Children's Early Outdoor Activity on Preschoolers' Obesity.

Incense burning is a significant source of indoor air pollution in many Asian regions. There is emerging evidence that maternal prenatal exposure to incense-burning smoke may be a risk factor for childhood obesity. We aimed to extend this new line of research by investigating the independent and joint effect of incense-burning smoke exposure, and children's outdoor activity in early life, on preschoolers' obesity. A total of 69,637 mother-child dyads were recruited from all kindergartens in the Longhua District of Shenzhen, China. Information on sociodemographic characteristics, maternal exposure to incense-burning smoke (IBS) during pregnancy, and frequency and duration of outdoor activity at the age of 1-3 years was collected by a self-administered questionnaire. In addition, the heights and weights of the children were measured by the research team. Logistic regression models and cross-over analyses were conducted to investigate the independent and combined effects of maternal exposure to incense-burning smoke during pregnancy and children's early outdoor activity on obesity in preschoolers. We found that prenatal exposure to incense-burning smoke increased the risk of the presence of obesity in preschoolers' (AOR = 1.13, 95% CI = 1.03-1.23). Additionally, lower frequencies (<3 times/week) or shorter durations (<60 min/time) of outdoor activity from the age of 1-3 years were significantly associated with the presence of obesity, with AORs of 1.24 (95% CI =1.18-1.32) and 1.11 (95% CI = 1.05-1.17), respectively. Furthermore, the cross-over analysis showed that prenatal exposure to IBS combined with a lower frequency of early outdoor activity (AOR = 1.47, 95% CI = 1.31-1.66) or a shorter duration of outdoor activity during ages of 1-3 years (AOR = 1.22, 95% CI = 1.07-1.39) increased the risk of obesity in preschoolers. Finally, additive interactions between prenatal exposure to IBS and postnatal outdoor activity on obesity were identified. Our study indicates that maternal exposure to incense-burning smoke during pregnancy and early lower postanal outdoor activity may independently and jointly increase the risk of obesity among preschoolers.

Thyroid autoimmunity in euthyroid pregnant women is associated with slower productive language acquisition: the Odense child cohort study.

Maternal thyroid autoimmunity and thyroid function in early pregnancy may impact fetal neurodevelopment. We aimed to investigate how thyroid autoimmunity and thyroid function in early pregnancy were associated with language acquisition in offspring at 12-36 months of age. This study was embedded in the prospective Odense child cohort. Mother-child dyads were excluded in case of maternal intake of thyroid medication during pregnancy. The parents completed MacArthur-Bates Communicative Development Inventories (MB-CDI) every third month to assess their offspring's productive vocabulary. All completed reports for each child were included in the analyses. Logistic growth curve models evaluated associations between MB-CDI scores and levels of maternal thyroid peroxidase antibodies (TPOAb), free thyroxine (FT4), and thyrotropin, respectively, measured in early pregnancy (median gestational week 12). All models were stratified by offspring sex and adjusted for maternal age, education, pre-pregnancy body mass index, parity, breastfeeding, and offspring age. The study included 735 mother-child dyads. Children born to mothers with TPOAb ≥11 kIU/L, opposed to TPOAb <11 kIU/L, had a lower probability of producing words at age 18-36 months for girls (OR = 0.78, P < 0.001) and 33-36 months for boys (OR = 0.83, P < 0.001). The probability of producing words was higher in girls at 30-36 months of age with low-normal maternal FT4 vs high-normal FT4 (OR = 0.60, P < 0.001), and a similar trend was seen in boys. Results were ambiguous for thyrotropin. In women without known thyroid disease, TPOAb positivity in early pregnancy was negatively associated with productive vocabulary acquisition in girls and boys. This association was not mediated by a decreased thyroid function, as low-normal maternal FT4, unexpectedly, indicated better vocabulary acquisition. Our results support that maternal thyroid autoimmunity per se may affect fetal neurodevelopment.