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The current study adopted a case study design with mixed methods to examine the multiple features in child development course syllabi in early childhood teacher education programs in two countries, China and the US. This study provided insights into the twenty syllabi through document review and questionnaires. Twenty-six participants, viewed as "cultural outsiders", were recruited in this study: thirteen from institutions in the US and thirteen from Chinese institutions. Results showed that the syllabi from the US universities could be considered "broad" learning and the syllabi from China as "deep" learning. The Chinese universities in the study focused more on helping students understand child development knowledge, whereas US universities emphasized helping teacher candidates apply the knowledge of child development in practice. Comparatively, US universities concentrated more on critical thinking and cultural perspectives. [ABSTRACT FROM AUTHOR]

The period from birth to 2years of age is highly sensitive with respect to the relationship between nutrition and neurodevelopment, but data regarding the association between dietary diversity and early childhood neurodevelopment are limited. We sought to examine the association of two feeding indicators—minimum dietary diversity (MDD) and minimum meal frequency (MMF)—with the neurodevelopment of children aged 6–23 months, using data from a cross‐sectional survey conducted in six rural counties in China. Data on 1,534 children were analysed using logistic regression to explore the associations between dietary diversity and early neurodevelopment, with adjustments for the age, sex and prematurity of the child; the age, sex and educational level of the caregiver; and family size, income and simulative care practices and resources. We found that 32.4% of children had suspected developmental delays based on the Chinese version of the Ages and Stages Questionnaires Version 3, whereas 77.0% and 39.2% failed to meet the MDD and MMF, respectively. Meeting the MDD was associated with a 39% lower risk of developmental delays (AOR = 0.61, 95% CI [0.43, 0.86]). There was a significant association between MDD and reduced likelihood of developmental delays in gross motor, fine motor, problem‐solving and personal social subscales, whereas MMF was only associated with a lower risk of developmental delays in the gross motor subscale (AOR = 0.63, 95% CI [0.42, 0.94]). We observed an inverse dose–response relationship between the number of food groups consumed and the risk of developmental delays (P <.001). [ABSTRACT FROM AUTHOR]

We tracked the motor skill development of young children aged 3–6 years and investigated the influence of middle-income home environment on the development of motor skill. 268 children were selected from kindergartens in Beijing. The Test of Gross Motor Development (TGMD) tool was used to test the development of locomotor and object-control skills (LS and OS), and a survey of children's behaviour and home environment was conducted. During the follow-up, the LS and OS of children aged 3–6 years continued to grow, with an annual growth rate of 20% and 30%. Five LS indicators and two OS indicators were significantly higher in the 3–4-year group than in the 4–5 and 5–6-year groups (p < 0.01). The age-sex trend model showed that girls' locomotor skill developed at a significantly higher rate than that of boys (β = 6.3004 and 4.6782, p < 0.001). Three-year-old boys performed significantly better than girls on object-control motor skill (p < 0.05). Factors affecting the rate of children's motor skill development in middle-income families included the frequency of playing with friends (β = 0.133 , p = 0.032) and the frequency of bicycling, skateboarding, dancing, running, and jumping (β = 0.041 , p = 0.042). Family income, parents' education level, and family activity area did not significantly affect the growth rate of motor skills. For middle-income families, the improvement of material environment at home like more playing spaces and toys did not speed up the motor development, while more opportunities to play with friends and engage in a variety of sports activities could promote children's motor skill development. [ABSTRACT FROM AUTHOR]

• Intergenerational transmission of parenting styles exists in rural China. • The transmissible parenting style emphasis the role of father in parenting. • There is intergenerational transmission of rejective, hostile parenting style. • The transmission of parenting style is mediated by caregiver's mental health. The quality of parenting is associated with both early childhood development and lifelong negative adult outcomes, and there is evidence to suggest that some aspects of parenting show patterns of intergenerational transmission. However, the mediating mechanisms of the intergenerational transmission of parenting style are not fully understood. This study aims to examine whether intergenerational transmission of parenting style occurs among caregivers in rural China, and whether the mental health of caregivers is a critical mediator in the transmission process across generations. The sample consists of 194 caregivers who were recruited from an investigation in rural Jiangxi Province, China. Parenting style of both father and mother of the caregiver were self-reported by the caregiver using the simplified version of Egna Minnen av Barndoms Uppfostran (s-EMBU) inventory. The current parenting style of the caregiver is assessed by using the Parenting Practice Questionnaire (PPQ). We use multivariate regression to predict the intergenerational transmission of parenting style and examine the potential mediation effects. We found that 'emotional warmth' and 'rejective' parenting style of caregiver's parents are positively and significantly associated with 'warm' and 'hostile' parenting style of the caregiver, respectively. The transmission of rejective, hostile parenting style across generation is fully mediated by the mental health status of the caregiver. Specifically, the mediation effect of caregiver's depression, anxiety, and stress are all statistically significant. Findings in this paper support the existence of intergenerational transmission of parenting styles in rural China. Caregiver's mental health mediate the transmission process of rejective, hostile parenting style. This raises the possibility that parenting services may benefits across generations, and provides empirical evidence for preventive services aimed at improving caregiver's mental health and parenting styles at the early stage of child development. [ABSTRACT FROM AUTHOR]

Background: The intellectual loss induced by fluoride exposure has been extensively studied, but the association between fluoride exposure in different susceptibility windows and children's intelligence is rarely reported. Hence, we conducted a cross-sectional study to explore the association between fluoride exposure in prenatal and childhood periods and intelligence quotient (IQ).Methods: We recruited 633 local children aged 7-13 years old randomly from four primary schools in Kaifeng, China in 2017. The children were divided into four groups, of which included: control group (CG, n = 228), only prenatal excessive fluoride exposure group (PFG, n = 107), only childhood excessive fluoride exposure group (CFG, n = 157), both prenatal and childhood excessive fluoride exposure group (BFG, n = 141). The concentrations of urinary fluoride (UF) and urinary creatinine (UCr) were determined by fluoride ion-selective electrode assay and a creatinine assay kit (picric acid method), respectively. The concentration of UCr-adjusted urinary fluoride (CUF) was calculated. IQ score was assessed using the second revision of the Combined Raven's Test-The Rural in China (CRT-RC2). Threshold and saturation effects analysis, multiple linear regression analysis and logistic regression analysis were conducted to analyze the association between fluoride exposure and IQ.Results: The mean IQ score in PFG was respectively lower than those in CG, CFG and BFG (P < 0.05). The odds of developing excellent intelligence among children in PFG decreased by 51.1% compared with children in CG (OR = 0.489, 95% CI: 0.279, 0.858). For all the children, CUF concentration of ≥1.7 mg/L was negatively associated with IQ scores (β = - 4.965, 95% CI: - 9.198, - 0.732, P = 0.022). In children without prenatal fluoride exposure, every 1.0 mg/L increment in the CUF concentration of ≥2.1 mg/L was related to a reduction of 11.4 points in children's IQ scores (95% CI: - 19.2, - 3.5, P = 0.005).Conclusions: Prenatal and childhood excessive fluoride exposures may impair the intelligence development of school children. Furthermore, children with prenatal fluoride exposure had lower IQ scores than children who were not prenatally exposed; therefore the reduction of IQ scores at higher levels of fluoride exposure in childhood does not become that evident. [ABSTRACT FROM AUTHOR]

Using data from a 2017 survey in western China, we examine whether remittances received from migrant family members and household work burden play moderating roles in children's depression. We also explore the extent to which interpersonal factors (parent-child communication and parenting practices) and child's intrapersonal personality trait (assessed by self-esteem) mediate the impact of parental migration on children's depression. Results show that receipt of remittances significantly helps mitigate their depression. Regardless of children's left-behind-status, household work burden significantly increases their levels of depression. Levels of depression among children left-behind by both parents are mediated by parent-child communication, parental responsiveness, and children's self-esteem. Findings reveal significant social costs due to parental migration in terms of child development. The policy implications of our findings are discussed. [ABSTRACT FROM AUTHOR]

Internal migration has resulted in a large number of left-behind children in China. Despite growing attention to this population, important gaps remain in our understanding of their cognitive development and the factors that mediate the impact of migration on children. The present study draws on a new nationally representative survey of Chinese children to study the psychological and cognitive development of left-behind children. Results show that rural children left behind by both parents (but not by one parent) are worse off in both psychological well-being and cognitive development than rural children living with both parents. The disadvantage of left-behind children is mediated by their caregivers' emotional well-being, parenting practices, and education. We also find a pronounced rural-urban difference in children's cognitive development. [ABSTRACT FROM AUTHOR]

Depression is highly prevalent among parents around the world. Although there has been substantial research on maternal depression, few studies have additionally considered paternal depression and examined the independent and potentially interactive influence between paternal and maternal depression on children's development. The objectives of this study were to investigate the unique association between paternal depression and children's later socioemotional development, and explore whether this association was moderated by maternal depression. We used data from the 2012 and 2014 waves of the China Family Panel Studies. We used multivariable linear regression models to examine the association between paternal depression, as measured using the Center for Epidemiological Studies-Depression Scale, and children's socioemotional development, as measured using the Positive Behaviors Scale. We also explored whether there was effect modification by maternal depression. The sample comprised of 1615 children (Mage = 7.38 years; 48.5% female) and their parents. Twenty-four percent of fathers and 33% of mothers were depressed. We found that paternal depression was negatively associated with children's socioemotional development (β = - 0.18; 95% CI - 0.31, - 0.03), controlling for maternal depression and other sociodemographic covariates. Moreover, we found that the association was moderated by maternal depression, whereby the negative association was stronger when mothers were not depressed (β = - 0.30; 95% CI - 0.52, - 0.08) versus null when mothers were depressed (β = - 0.02; 95% CI - 0.24, 0.20). Parenting interventions should promote the mental health of fathers, in addition to mothers, as a more holistic and family-based approach for improving both the wellbeing of parents and behavioral development of children. [ABSTRACT FROM AUTHOR]

We aimed to comprehensively examine the association of breast-feeding, types and initial timing of complementary foods with adolescent cognitive development in low- and middle-income countries. We conducted a prospective cohort study of 745 adolescents aged 10–12 years who were born to women who participated in a randomised trial of prenatal micronutrient supplementation in rural Western China. An infant feeding index was constructed based on the current WHO recommendations. Full-scale intelligence quotient (FSIQ) was assessed and derived by the fourth edition of the Wechsler Intelligence Scale for Children. The duration of exclusive or any breast-feeding was not significantly associated with adolescent cognitive development. Participants who regularly consumed Fe-rich or Fe-fortified foods during 6–23 months of age had higher FSIQ than those who did not (adjusted mean differences 4·25; 95 % CI 1·99, 6·51). For cows'/goats' milk and high protein-based food, the highest FSIQ was found in participants who initially consumed at 10–12 and 7–9 months, respectively. A strong dose–response relationship of the composite infant feeding index was also identified, with participants in the highest tertile of overall feeding quality having 3·03 (95 % CI 1·37, 4·70) points higher FSIQ than those in the lowest tertile. These findings suggest that appropriate infant feeding practices (breast-feeding plus timely introduction of appropriate complementary foods) were associated with significantly improved early adolescent cognitive development scores in rural China. In addition, improvement in Fe-rich or Fe-fortified foods complementary feeding may produce better adolescent cognitive development outcomes. [ABSTRACT FROM AUTHOR]

A review of the article "The Effect of Parental Absence on Child Development in Rural China," by J. Wu and J. Zhang, which appeared in the 2017 issue of "Asian Economic Policy Review" is presented.

Choosing a valid and feasible method to measure child developmental outcomes is key to addressing developmental delays, which have been shown to be associated with high levels of unemployment, participation in crime, and teen pregnancies. However, measuring early childhood development (ECD) with multi-dimensional diagnostic tests such as the Bayley Scales of Infant and Toddler Development III (Bayley-III) can be time-consuming and expensive; therefore, parental screening tools such as the Ages and Stages Questionnaire (ASQ-3) are frequently an alternative measure of early childhood development in large-scale research. The ASQ is also becoming more frequently used as the first step to identify children at risk for developmental delays before conducting a diagnostic test to confirm. However, the effectiveness of the ASQ-3 is uncertain. In this study, we evaluate the accuracy of the ASQ-3 as a screening measure for children at risk of developmental delay in rural China by age group. To do so, we administered the Bayley-III, widely considered to be the “gold standard” of ECD diagnostic tests, to a sample of 1,831 five to twenty-four month-old children and also administered the ASQ-3 to their caregivers. We then compared the outcomes of the ASQ-3 test to those of the Bayley-III. We find that the ASQ-3 was significantly though weakly correlated with the Bayley-III and that the strength of this correlation increased with child age and was stronger when the mother was the primary caregiver (as compared to the grandmother). We also find that the sensitivity and specificity of ASQ-3 ranged widely. The overall findings suggest that the ASQ-3 may not be a very accurate screening tool for identifying developmentally delayed children, especially for children under 13 months of age or children whose primary caregiver is not the mother. [ABSTRACT FROM AUTHOR]

This study aims to investigate the developmental status of rural Chinese children, the extent of interactive parenting they receive, and the relation between the two. A sample of 448 six to eighteen-month-old children and their caregivers were randomly selected from two rural counties in Hebei and Yunnan provinces. According the third edition of the Bayley Scales of Infant and Toddler Development, 48.7% of sample children exhibited cognitive delays, 40.6% language delays, and 35% social-emotional delays. According to responses from caregivers, parenting in rural China is largely passive, lacking in interactive practices like storytelling, singing, and playing. Children-with-siblings, left-behind children, and children with less-educated mothers were even less likely to receive interactive practices. Children of caregivers who did engage in best parenting practices showed better cognitive, language, and social-emotional development; however, the public health system provides no platform for learning about optimal parenting. [ABSTRACT FROM AUTHOR]

Previous studies have emphasized the effect of childhood emotional abuse on students' aggressive behavior; however, few studies have examined the effects of personality and gender when studying childhood emotional abuse and aggressive behavior. To fill this gap, the current study aimed to explore the mediating effect of personality and the moderating effect of gender on the relationship between childhood emotional abuse and aggressive behavior among Chinese college students. A sample of 1253 students aged from 18 to 24 years completed the Childhood Trauma Questionnaire, Eysenck Personality Questionnaire, and Buss-Warren Aggression Questionnaire. The results showed that neuroticism and psychoticism partially mediated the relationship between childhood emotional abuse and aggressive behavior. Moreover, a multigroup analysis found that the mediating effect of neuroticism was significant for women but not for men and that the mediating effect of psychoticism was significant for men but not for women. These findings suggest that caregivers should pay more attention to the development of children's personalities, which may ameliorate the deleterious effect of childhood emotional abuse on aggressive behavior. [ABSTRACT FROM AUTHOR]

This study investigated the effects of social-emotional competency on pupils' academic achievement, academic emotions and attitudes, and interpersonal relationships. Participants were 7106 fourth-grade and fifth-grade students in western China. The results were: (1) social-emotional competency positively predicted pupils' academic achievement (including reading, mathematics, and science); (2) social-emotional competency predicted pupils' academic emotions and attitudes, including learning anxiety and interest, and academic emotions and attitudes played a mediating role in the relation between social-emotional competency and academic achievement; and (3) social-emotional competency positively predicted pupils' interpersonal relationships, including peer relationships and teacher–student relationships, and interpersonal relationships played a mediating role in the relation between social-emotional competency and academic achievement. These findings highlighted the importance of social-emotional competency to child development in western China, where many children might lack their parents' company. [ABSTRACT FROM AUTHOR]

Objectives: In China, 61 million children have been left behind in their original rural communities by migrant-labor parents, among whom 60% live apart from their migrant mother. This study examined the associations of mother versus father absence with adolescents' academic achievement, cognitive ability, and emotional well-being in rural China as well as explored parenting practices (i.e., parental regulation, parent-child communication, parent-child co-activities) as mechanisms to explain the hypothesized different maternal and paternal roles in relation to adolescent development. Method: Using a recent nationally representative dataset with 7419 adolescents, fixed effects models and propensity score weighting were used to assess the association between parental migration and adolescent development. Multiple regressions with the Sobel tests were employed to explore the mediating role of parenting practices. Results: The analyses revealed that living in mother-absent households was negatively associated with adolescents' test scores and depressive symptoms, whereas living in father-absent households was rarely associated with negative outcomes. Results also indicated that the differences between the child development in mother- versus father-absent households were partially explained by disparities in parenting practices. Conclusions: Our study suggested that parental absence and parenting practices were jointly related to youth development among types of migrant families. Given the massive level of labor migration in China as well as the growth of labor migration in many other developing countries, both scholars and policy makers will want to take note. [ABSTRACT FROM AUTHOR]

The ability to intentionally control behavior to achieve specific goals helps children concentrate in school and behave appropriately in social situations. In Chinese culture, where self-regulation is highly valued by parents and teachers, children’s difficulties self-regulating may contribute to increased learning problems and subsequent authoritarian parenting. In this study we explored the longitudinal linkages among Chinese children’s self-regulation, learning problems, and authoritarian parenting using a developmental cascades model. Participants were N = 617 primary school students in Shanghai, P.R. China followed over three years from Grade 3-4 to Grade 5-6. Measures of children’s self-regulation, learning problems, and maternal authoritarian parenting were obtained each year from a combination of child self-reports and maternal and teacher ratings. Among the results: (1) compared with the unidirectional and bidirectional models, the developmental cascades model was deemed the best fit for the data; (2) earlier self-regulation negatively predicted later authoritarian parenting via a pathway through academic performance; (3) academic performance directly and indirectly contributed to greater self-regulation. Results are discussed in terms of the implications of self-regulation for Chinese children’s academic success and authoritarian parenting practices. [ABSTRACT FROM AUTHOR]

Objective: To examine the correlation between birth season and early childhood development. Background: Almost all previous studies that examine the effect of birth season on early childhood development were conducted in developed countries with a limited sample size. The present study was conducted in poor, rural areas of western China, a developing region with a continental monsoon climate. Method: We administered a hemoglobin test to 650 infants (52% boys), aged 8–10 months, using a Hemocue Hb 201+ finger prick system, and assessed the cognitive and psychomotor development of sample infants using Bayley Scales of Infant Development. Results: Infants born in winter have higher Hb concentrations (t = 3.63, p < 0.001) compared to infants born in summer. Similarly, cognitive development scores (t = 5.17, p < 0.001) and psychomotor development scores (t = 10.60, p < 0.001) were significantly higher among winter-born infants. Conclusion: The findings point to the involvement of birth season in early childhood development and suggest that aspects of the environment shape the experiences that contribute to early childhood development. Policy suggestions such as providing infants with ample opportunities for movement and stimulation during the cold season are discussed. [ABSTRACT FROM AUTHOR]

Background/objectives: To determine the association between cord blood 25-hydroxyvitamin D (25(OH)D) concentration with growth, adiposity and neurodevelopment during infancy.Subjects/methods: Serum 25(OH)D was measured in cord blood by the liquid chromatography tandem mass spectrometry (LC-MS/MS) from the Shanghai's "Allergy and Obesity Cohort study" (n = 1244). Weight, length, head circumference, and body mass index (BMI) z-scores for age were calculated based on World Health Organization Standard (at 6 months, 1 years, and 2 years). Neurodevelopment was measured at 2 years using Ages and Stages Questionnaire. Generalized estimating equation and multivariable logistic regression model were exploited to examine associations between fetal 25(OH)D concentration and offspring outcomes.Results: The median of the 25(OH)D concentration in cord blood was 22.4 ng/ml (interquartile range, 27.3-8.6). Infants born in winter had lower 25(OH)D concentration. 25(OH)D deficiency was not associated with weight z-score (mean difference, 0.07; 95% confidence internal (CI), -0.09 to 0.23), length z-score (mean difference, 0.01; 95% CI, -0.19 to 0.21), head circumference z-score (mean difference, -0.06; 95% CI, -0.27 to 0.15) and BMI z-score (mean difference, 0.09; 95% CI, -0.07 to 0.25) or neurodevelopment during infancy, adjusting for sex, socio-economic position, pre-pregnancy maternal BMI, and maternal and neonatal characteristics. The associations did not vary by gender. A sensitivity analysis of available case analysis showed virtually the same results.Conclusions: Fetal vitamin D concentration was not associated with growth, adiposity or neurodevelopment during infancy. The role of vitamin D concentration and its mechanistic pathway in the early origins of adiposity needs to be clarified. [ABSTRACT FROM AUTHOR]

The purpose of this study was to examine the effects of a peer-mediated LEGO® play intervention on improving social skills for children with ASD in an inclusive preschool in China. Three boys with ASD and 13 typically developing children participated in this study. A multiple-probe across participants design was used. The intervention consisted of LEGO® construction activities incorporated with peer-mediated strategies for one child with ASD and two typically developing peers. The intervention sessions were conducted two sessions per week with a total of 28-31 sessions for each participant. Results indicated that all three children with ASD increased their social initiations and responses following the completion of the intervention. Social validity was also obtained. [ABSTRACT FROM AUTHOR]

The benefits of parental involvement in children’s education have been well established but increasing evidence suggests that overparenting may have adverse effects on children. The question of whether excessive parental involvement hinders children’s academic and psychosocial development warrants further investigations. This study examined the associations of parental educational involvement at home and in school with academic performance and psychological health of 507 Chinese Grade 3 schoolchildren in Hong Kong. Parents reported on their level of involvement in children’s schooling and their children’s psychosocial issues. Children were surveyed to determine their school engagement, and their Chinese language and mathematics attainment was assessed. We also explored the underlying mechanism by testing children’s engagement with school as a mediator of the relationships. Our results showed that home-based parental educational involvement was positively associated with children’s language competence and psychosocial wellbeing, and the associations were linked through engaging children with school. However, the benefits reached a plateau at higher level of parental involvement in children’s learning at home. School-based parental involvement had an indirect effect on children’s prosocial behavior through school engagement. These findings highlight the significance of optimal level of parental involvement in children’s education at home for children’s development. [ABSTRACT FROM AUTHOR]

Play is a fundamental concept in early childhood development and education. As partners in the child’s learning, parents play a crucial role in how play is defined, valued, and practised. The present study explores the constructs of parents’ beliefs about and engagement in young children’s play in two coastal cities in China. A sample of 483 parents of children aged two to four years (M = 36.48 months, SD = 4.86) completed a newly developed instrument, the Chinese Parent Play Beliefs Scale (CPPBS), to assess their beliefs on play, and two other scales to report on the parents’ and children’s play engagement at home. Factor analyses confirmed two factors in the CPPBS - Play for Learning (PL) and Play for Fun (PF). Mediation models found two patterns of parental engagement in children’s play: parent involvement mediated the relationship between their PL beliefs and children’s engagement with (pre)academic-related play, but did not mediate the relationship between their PF beliefs and children’s engagement with entertainment and fantasy play. This finding indicates Chinese parents might support young children’s play as teachers, rather than as playmates. [ABSTRACT FROM AUTHOR]

Well-child health care services are essential for maintaining optimum child health and development. This study’s aim was to evaluate the quality of such services and identify factors affecting service quality from the perspective of well-child health care providers located in China’s Hunan Province. To achieve this, a qualitative descriptive method was employed, with 22 well-child health care providers being recruited, using purposive sampling, from among the provinces’ government community health centers. The participants completed individual semi-structured interviews lasting approximately 25–30 minutes that were designed to obtain their views on well-child health care administration in the province. Then, the interview transcripts were analyzed thematically. The main finding was that participants felt that the delivery of well-child health care services in Hunan Province is insufficient. Factors they mentioned as negatively affecting the delivery of such services included the region’s fragmented primary health care system, inadequate attention to this issue from parents and community health care center managers, and a lack of specialized well-child care knowledge. Thus, currently, well-child health care is not being successfully implemented in Hunan Province; consequently, in order to successfully implement well-child health care in this region, community health care centers should invest more resources and funding, particularly into education programs for well-child health care providers. [ABSTRACT FROM AUTHOR]

Background: Previous studies about inequality in children's health focused more on physical health than the neurodevelopment. In this study, we aimed to evaluate the inequality in early childhood neurodevelopment in poor rural China and explore the contributions of socioeconomic factors to the inequality. Method: Information of 2120 children aged 0 to 35 months and their households in six poor rural counties of China was collected during July - September, 2013. Age and Stages Questionnaire-Chinese version, concentration index and decomposition analysis were used to assess the neurodevelopment of early childhood, measure its inequality and evaluate the contributions of socioeconomic factors to the inequality, respectively. Result: The prevalence of suspected developmental delay in children under 35 months of age in six poor rural counties of China was nearly 40%, with the concentration index of -0.0877. Household economic status, caregivers' depressive symptoms, learning material and family support for learning were significantly associated with children's suspected developmental delay, and explained 34.1, 14.1, 8.9 and 7.0% of the inequality in early childhood neurodevelopment, respectively. Conclusion: The early childhood neurodevelopment in the surveyed area is poor and unfair. Factors including household economic status, caregivers' depressive symptoms, learning material and family support for learning are significantly associated with children's suspected developmental delay and early developmental inequality. The results highlight the urgent need of monitoring child neurodevelopment in poor rural areas. Interventions targeting the caregivers' depressive symptoms, providing learning material and developmental appropriate stimulating activities may help improve early childhood neurodevelopment and reduce its inequality. [ABSTRACT FROM AUTHOR]

The present study explored the lived experiences of Chinese immigrant parents in New York City who went through prolonged separation and faced challenges after reunification in the United States. The study assessed their attitudes, perceptions, and reactions to the separation and reunification process to gain better understanding of the ways prolonged separation and reunification impact on child development and family wellbeing. A phenomenological research approach was used to study qualitatively the narrative data from in-depth interviews. The analytical process was based on data immersion, coding, sorting codes into themes, and comparing the themes across interviews. The sample included 18 Chinese immigrant families who had sent their American-born children to China for rearing and reunited with their children within the past 5 years. Data analyses revealed specific themes that included reasons for separation, parenting methods, child's initial adjustment, behavior, and family relationship, child's social, emotional, and academic challenges, parental stress and challenges, and recommendations for services. This study contributed to our knowledge of prolonged separation, a common practice among a vulnerable, hard-to-reach immigrant population. It shed light on specific needs of Chinese immigrant families by examining closely the unique circumstances pertaining to prolonged separation, parenting practice, and related family challenges. An understanding of the approaches these families adopt to cope with life challenges may help inform practitioners in formulating service strategies for these families. Specific assessments in child-care, education, and health care settings are essential to prompt immediate follow-up and intervention when needed. [ABSTRACT FROM AUTHOR]

We investigated the association between adopted Chinese girls’ nighttime sleep problems and adoptive parents’ self-judgment about their parenting. The girls were 1.7–6.9 years old (M= 4.6 years,SD= 1.0) and were adopted at 7–56 months (M= 13.9 months,SD= 6.6) by families in North America. At Wave 2 of a longitudinal study on adopted Chinese children’s development, the adoptive parents provided survey data on bedtime resistance or anxiety and parasomnias in their daughters and their own parental sense of entitlement and parenting competence. Results showed that controlling for child and family demographics, parasomnias, but not bedtime resistance or anxiety, negatively predicted parental sense of entitlement (B= -.13,p< .01) and parenting competence (B= -.14,p< .01). [ABSTRACT FROM AUTHOR]

The present study examined authoritative parenting and associations with parenting sense of competence and social support in Chinese mothers of children with intellectual disability and mothers of typically developing children. One hundred and sixty-seven mothers of children with intellectual disability with a mean age of 10.89 years (SD = 1.74) and 119 mothers of typically developing children with a mean age of 10.55 years (SD = 1.10) participated in a survey. Mothers of children with intellectual disability reported similar levels of parental warmth, and less use of reasoning and autonomy support compared with mothers of typically developing children. Parenting efficacy contributed uniquely to three dimensions of authoritative parenting for mothers of children with intellectual disability. By comparison, parenting efficacy did not contribute to use of reasoning and autonomy support for mothers of typically developing children. Social support made a unique but small contribution to parental warmth but not to parental reasoning and autonomy support for mothers of children with intellectual disability. For mothers of typically developing children, social support was associated with both parental warmth and autonomy support. This study suggests that child disability status is related to maternal authoritative parenting, and additionally, parenting efficacy plays a more critical role in predicting authoritative parenting of Chinese mothers of children with intellectual disability than mothers of typically developing children. [ABSTRACT FROM AUTHOR]

Background: : Infant body mass index (BMI) peak has received much interest recently as a potential predictor of future obesity and metabolic risk. No studies, however, have examined infant BMI peak in Asian populations, in whom the risk of metabolic disease is higher.Methods: : We utilized data among 1020 infants from a mother-offspring cohort, who were Singapore citizens or permanent residents of Chinese, Malay or Indian ethnicity with homogeneous parental ethnic backgrounds, and did not receive chemotherapy, psychotropic drugs or have diabetes mellitus. Ethnicity was self-reported at recruitment and later confirmed using genotype analysis. Subject-specific BMI curves were fitted to infant BMI data using natural cubic splines with random coefficients to account for repeated measures in each child. We estimated characteristics of the child's BMI peak [age and magnitude at peak, average pre-peak velocity (aPPV)]. Systolic (SBP) and diastolic blood pressure (DBP), BMI, sum of skinfolds (SSF) and fat-mass index (FMI) were measured during a follow-up visit at age 48 months. Weighted multivariable linear regression was used to assess the predictors (maternal BMI, gestational weight gain, ethnicity, infant sex, gestational age, birthweight-for-gestational age and breastfeeding duration) of infant BMI peak and its associations with outcomes at 48 months. Comparisons between ethnicities were tested using Bonferroni post-hoc correction.Results: : Of 1020 infants, 80.5% were followed up at the 48-month visit. Mean (SD) BMI, SSF and FMI at 48 months were 15.6 (1.8) kg/m 2 , 16.5 (5.3) mm and 3.8 (1.3) kg/m 2 , respectively. Mean (SD) age at peak BMI was 6.0 (1.6) months, with a magnitude of 17.2 (1.4) kg/m 2 and pre-peak velocity of 0.7 (0.3) kg/m 2 /month. Compared with Chinese infants, the peak occurred later in Malay {B [95% confidence interval (CI): 0.64 mo (0.36, 0.92)]} and Indian infants [1.11 mo (0.76, 1.46)] and was lower in magnitude in Indian infants [-0.45 kg/m 2 (-0.69, -0.20)]. Adjusting for maternal education, BMI, gestational weight gain, ethnicity, infant sex, gestational age, birthweight-for-gestational-age and breastfeeding duration, higher peak and aPPV were associated with greater BMI, SSF and FMI at 48 months. Age at peak was positively associated with BMI at 48 months [0.15 units (0.09, 0.22)], whereas peak magnitude was associated with SBP [0.17 units (0.05, 0.30)] and DBP at 48 months [0.10 units (0.01, 0.22)]. Older age and higher magnitude at peak were associated with increased risk of overweight at 48 months [Relative Risk (95% CI): 1.35 (1.12-1.62) for age; 1.89 (1.60-2.24) for magnitude]. The associations of BMI peak with BMI and SSF at 48 months were stronger in Malay and Indian children than in Chinese children.Conclusions: : Ethnic-specific differences in BMI peak characteristics, and associations of BMI peak with early childhood cardio-metabolic markers, suggest an important impact of early BMI development on later metabolic outcomes in Asian populations. [ABSTRACT FROM AUTHOR]

One salient characteristic of twin studies and the related behavioral genetics paradigm is the requirement of a large sample size. Countries or regions that are large in size and highly populated are at an advantage when implementing twin studies. However, given the fascinating and promising results obtained from twin studies, many researchers based in smaller countries or regions may still want to conduct twin studies in order to address local and theoretical issues. In this article, we have outlined the development of twin studies in Hong Kong, one of the Special Administrative Regions of China. The historical development and design of the two major twin studies of language and reading development implemented within Hong Kong are discussed, providing insights to researchers who also aspire to conduct twin studies in small regions. [ABSTRACT FROM AUTHOR]

This study estimates the effect of parental absence on the development of children in rural China. Although some previous studies have looked into the effect of parental absence on children's academic achievements, we investigate the effects of parental absence on both the cognitive and non-cognitive skills of children. Our results show that parental absence during early child development mostly incurs negative effects on the academic achievement and non-cognitive development of children. A child whose parents are both absent tends to have lower Chinese and mathematics test scores, lower self-assessment on his/her behavior, and is less likely to be happy and satisfied. A gender difference is also observed in the effect of parental absence: girls suffer more from the effect of both parents being absent on their mathematics test scores than do boys. [ABSTRACT FROM AUTHOR]

Information about several papers discussed at the International Child Development and Educations Forum sponsored by the Song Ching Ling Foundation and East Normal University on teacher education held in Shanghai, China in 2009 is presented. Topics include the teaching and effort of raising awareness of early childhood education, and a lecture about the teaching preparation in early mathematics. The conference featured several professors including Zhou Jing and Qian Yu.

Objective: The study had two objectives (a) to adapt for Chinese children an intervention designed to strengthen the social information–processing (SIP) skills of children in the United States, and (b) to pilot test the adapted intervention in China. Methods: Adaptation of the Making Choices program involved reviewing Chinese literature on child development, translating and back-translating a treatment manual, modifying intervention content, and engaging experts to review program materials. Children (n = 91), ages 8–10, in five after-school child care centers in Tianjin, China, received the program. After propensity score adjustments, the skills of children who received the program were compared to the skills of children (n = 123) recruited from neighborhood primary schools. Results: The adapted program appears to have strengthened encoding skills. Patterns for other information-processing skills were promising but mixed. Conclusion: The program has the potential to strengthen the SIP skills of children in China. [ABSTRACT FROM AUTHOR]

Aim: The aim of this study was to examine the effects of home and educational environments on children's motor performance in China.Method: We conducted a cross-sectional study of 4001 preschool children selected from 160 classes. The children's motor performance was assessed using the Movement Assessment Battery for Children, 2nd edition (MABC-2). Home and educational environments were evaluated using validated checklists. The effects of home and educational environments on motor performance were analysed using mixed and multilevel logistic regression models.Results: The results showed that one score increase in the outside space of the family home was positively associated with the increase in total test score (0.104) subtest score of aiming and catching (0.037), and balance (0.034) of the MABC-2, after adjusting for potential confounders (each p<0.05). Possession of motor toys at home and parental rearing behaviours were also related to total test score, manual dexterity, and balance (β=0.022-0.104, each p<0.05). Space and furnishings, activity, and interaction in the classroom had a significant positive association with total test score (β=0.069-0.201), and with subtest scores of manual dexterity, aiming and catching, and balance respectively (β=0.115-0.206). Space and furnishings of classrooms and possession of toys in the household were protective factors for 'at risk' or significant poor performance (odds ratio 0.942-0.973, each p<0.05).Interpretation: A permissive and accepting family and educational environment made a positive contribution to children's motor performance. Access to sufficient space and furnishings within the classroom, as well as toys in the family, were protective factors for poor motor performance. Future assistance is needed to support an advantageous environment in early childhood programmes in China. [ABSTRACT FROM AUTHOR]

Family expressiveness, a reflection of a family's emotional environment, has been identified as a critical factor that influences children's emotion regulation, yet research on this topic is limited, especially in varying cultural contexts. The present study addresses this research gap and expands on the extant literature by examining the influence of family expressiveness on children's emotional development in the context of cumulative risks (e.g., low annual household income, parental psychological distress, parents' education level, marital dissatisfaction and the family's housing situation). Our final sample included one hundred and seventy-eight school-aged children (84 boys and 94 girls) and their biological parents. Results showed that higher scores on the familial risk index were related to increased emotion dysregulation and decreased adaptive emotion regulation, through the mediated effects of positive family expressiveness. Negative expressiveness, however, did not mediate the aforementioned links. Reasons for the different findings regarding positive expressiveness and negative expressiveness were discussed. These findings highlight the importance of cumulative risk on children's emotional development in the Chinese cultural context and offer potential avenues to promote adaptive emotional development in the context of cumulative risks. [ABSTRACT FROM AUTHOR]

Emotion knowledge contributes to emotion regulation and coping among adults, but few studies have investigated its role in children's coping development, especially in a cross-cultural context. We examine relations between children's emotion knowledge and coping in European American and Chinese immigrant families. One hundred and three 7- to 10-year-old children and their mothers from European American and Chinese cultural background participated in this study. Children's emotion knowledge was assessed using emotion-situation knowledge production task. This task examines their understanding of situational antecedents o discrete emotions. Children's use of coping strategies was reported by mothers using the Children's Coping Strategies Checklist. Results showed that Chinese immigrant children had greater emotion knowledge of fear and pride but were reported using less variety of coping strategies than European American children. The relationship between children's knowledge of self-conscious emotions and their use of distraction coping strategies was moderated by culture, whereby knowledge of self-conscious emotions was negatively associated with the parent-reported distraction strategies only for European American children but not for Chinese immigrant children. The importance of culture in both theory and practice related to emotion knowledge and coping is discussed. Findings in this study suggest that family intervention and children's emotion training programs may need to consider children's cultural background. [ABSTRACT FROM AUTHOR]

Aim: This cross-sectional study was designed to characterize by age the ratios of limb segments length to height and extremities-trunk ratio and body proportions of southern Chinese children.Methods: Data were collected from students (n = 4715) from five school, aged 6-17 years, in the city of Chongqing. Their standing height, sitting height, arm span, forearm length, upper arm length, leg length, lower leg length, and ratios of extremities to trunk length were determined.Results: Sitting height, forearm length, upper arm length, arm span, and lower leg length were highly correlated with standing height (r > 0.9; P < 0.05). The ratio of extremities to trunk increased till about 13 years of age for both genders.Conclusions: The length of extremities and their ratio to sitting height reflect regular changes of growth in Chinese children as their age, and limb segments length is highly correlated with height. [ABSTRACT FROM AUTHOR]

Objective: To investigate the effects of domestic violence (DV) against pregnant women on their infant's development in China. Design: 247 mothers were interviewed using the Chinese version of the Abuse Assessment Screen, and all participants underwent postnatal assessment with the Edinburgh Postpartum Depression Scale (EDPS). Plasma glutamate (Glu), γ-aminobutyric acid (GABA) and cortisol levels of the neonates were measured. After a 10-month follow-up, the infants were assessed using the Revised Infant Temperament Questionnaire (RITQ) and Bayley Scales of Infant Development (BSID). Results: 86 infants of abused mothers (DV group) and 137 infants of non-abused mothers (non-DV group) completed the 10-month follow-up. Neonate levels of plasma Glu, GABA and cortisol were significantly higher in the DV group than in the non-DV group. Scores for the temperament factors, rhythmicity, approach/withdrawal, mood, distractibility and persistence, of the RITQ were rated significantly higher, and results for the Psychomotor Development Index (PDI) of the BSID were significantly lower in the DV group than in the non-DV group at 10 months. After adjustment for the EPDS as a covariate, only distractibility of the RITQ showed a statistically significant difference between the two groups. In correlation analysis, infant mood correlated significantly with levels of plasma Glu (β=0.2345) and GABA (β=0.2554), whether or not the EPDS scores were adjusted. Infant persistence and threshold of stimuli scores did not correlate significantly with DV during pregnancy after adjustment for the EPDS. Conclusions: DV against pregnant women may be associated with impaired temperament and development in their infants. [ABSTRACT FROM AUTHOR]

Background: China's unprecedented internal migration has left 61 million rural children living apart from parents. This study investigates how being left behind is associated with children's growth, by examining children's height and weight trajectories by age, testing the accumulation and critical period life course hypotheses.Methods: Data were drawn from five waves of the China Health and Nutrition Survey (CHNS). Multiple cohorts of children under 6 years old from 1997-2009 were examined (N = 2,555). Growth curve models investigated whether height and weight trajectories differ for children who were left behind at different stages of the life course: in early childhood (from ages 0-5 but not afterwards), in later childhood (from ages 6 to 17 only), and in both early and later childhood (from ages 0-5 and from ages 6-17), compared to their peers from intact households.Results: Boys who were left behind at different life stages of childhood differed in height and weight growth compared with boys from intact families. No significant associations were found for girls. As young boys turned into adolescents, those left behind in early childhood tended to have slower height growth and weight gain than their peers from intact households. There was a 2.8 cm difference in the predicted heights of boys who were left behind in early childhood compared to boys from intact households, by the age of 14. Similarly, the difference in weight between the two groups of boys was 5.3 kg by the age of 14.Conclusions: Being left behind during early childhood, as compared to not being left behind, could lead to slower growth rates of height and weight for boys. The life course approach adopted in this study suggests that early childhood is a critical period of children's growth in later life, especially for boys who are left behind. The gender paradox in China, where sons are preferred, but being left behind appears to affect boys more than girls, needs further exploration. [ABSTRACT FROM AUTHOR]

Background There is limited information involving population data about the role of maternal health, fetal growth and neonatal health on children's developmental status at ages 4-7 years. Our aim was to determine the contribution of maternal, fetal and neonatal health to developmental status at ages 4-7 years. Methods In this 7-year follow-up prospective cohort study, a sample of 26 803 mothers participated in the beginning. Among their children, 19 187 voluntarily completed the development screening test or the social life ability survey, which were designed for two different age groups (<6 or ≥6 years old, respectively). Logistic regression analysis was used to link the data with the prenatal outcome card and interview questionnaire applied to pregnant women in previous study, to the analysis of various related factors such as demographic, socio-economic, disease and menstrual history, marriage and pregnancy care. Result Univariate and multivariate logistic regression analysis were used separately in two age groups [4-6 ( n = 8439) and 6-7 ( n = 10 748) years old] to analyse relative factors. Maternal age of 25-30 years, maternal education of high school and greater, family income and not drinking during pregnancy were associated with higher scores in development. Conclusion Both preconception and pregnancy health education and health care are the important maternal factors closely associated with children's cognitive and social competence. Public health policies for preconception care and public welfare for high-quality childcare are essential for improving children's life. [ABSTRACT FROM AUTHOR]

With China’s rapidly developing economy and increasing urbanization, many adults from rural areas migrate to urban areas for better paid jobs. A side effect of this migration is that parents frequently leave their children behind (left-behind children). This research investigated left-behind children’s and non-left-behind children’s psychological, behavioral, and educational functioning. Survey participants included 1,708 adolescents (54.8% female; mean age = 15.03 ± 1.93 years) from rural areas in Central China. Additionally, 32 left-behind children and 32 head teachers were interviewed. Data indicated that in comparison to non-left-behind children, left-behind children were at a disadvantage in regard to emotional adjustment (i.e. lower life satisfaction, lower self-esteem, and higher depression), but fared better in educational adjustment (greater school engagement). Mitigating factors which positively influenced outcomes of certain subgroups of left-behind children included the presence of one parent, increased parental contact, and shorter length of time since parental migration. Information gathered from interviews with LBC also indicated adverse effects of parent absence on children’s development. Teachers identified education measures and support offered to left-behind children and reported difficulties in communicating with parents. Based on this study’s findings, and considering the perspective of educators, implications for school-based interventions are explored. [ABSTRACT FROM PUBLISHER]

Background: Delayed motor development is reported in patients with congenital heart disease (CHD). Exercise is widely used to facilitate motor development and improve motor ability. Exercise for adolescents and adults with CHD has been extensively studied. However, the evidence of exercise for infants with CHD is sparse. This study aims to identify the effect of passive movement and active exercise on motor development within very young CHD infants with cardiac catheterization.Methods/design: A prospective and randomized controlled trial will be conducted in very young CHD infants with cardiac catheterization. A total of 147 infants with CHD will be randomized by a 1:1:1 allocation ratio by computer to an exercise intervention group, a home-based intervention group and a control group. The exercise intervention group will receive passive movement and active exercise from experienced physiotherapists in pediatrics three times a week for 12 weeks. The home-based intervention group will receive passive movement and active exercise from their parents or caregivers at home three times a week for 12 weeks. The control group will receive follow up only. The follow-up duration is 20 months. The primary outcome measures are the motor quotient measured by the Peabody Developmental Motor Scales-II. The secondary outcome measures are the Ross score, ventricular function, bone quality, body length, weight, head circumference, upper arm circumference, and adverse events.Discussion: This study has several important features, including the randomization process, the long follow-up duration, the control group, and the large sample size. The aim of this study is to determine whether 12-week passive movement and active exercise promotes motor development and produces other beneficial effects for very young CHD infants with cardiac catheterization. Therefore, this study will contribute new knowledge regarding the rehabilitation program in very young CHD infants with cardiac catheterization.Trial Registration: Current Controlled Trials ChiCTR-IOR-15005909 (January 31, 2015). [ABSTRACT FROM AUTHOR]

The acquisition of walking has recently been linked with infant language development (Walle & Campos, 2014). If this relation reflects the consequence of an epigenetic event, then it should be present regardless of when the infant typically begins to walk, the infant's culture, and the infant's native language. This study sought to replicate the previously reported link between walking and language development in American infants and investigate whether this relation exists cross-nationally in typically developing Chinese infants exposed to Mandarin. Urban Chinese infants not only provide a distinct linguistic and cultural population in which to study this relation but also typically begin walking approximately 6 weeks later than American infants. Our results demonstrated that (1) walking infants in both the American and Chinese samples had greater receptive and productive vocabularies than same-aged crawling infants, (2) differences between crawling and walking infants were proportionally similar in each sample, and (3) the walking-language relation was present for both noun and non-noun vocabularies. These findings provide further support of a relation between infant walking onset and language development, independent of age. Avenues for future research of the processes involved in this relation, as well as additional populations of interest to investigate, are discussed. [ABSTRACT FROM AUTHOR]

Background: In developed western populations, longer legs are a biomarker of better childhood conditions and negatively associated with cardiovascular disease risk factors. These associations are less obvious in non-western settings. However, early life is also a key immune system development phase. Aim: To examine the associations of height, leg length, sitting height and leg length/sitting height ratio with inflammatory markers (white blood, lymphocyte and granulocyte cell counts and C-reactive protein (CRP)) in a developing population of southern China. Subjects and methods: This study used multivariable linear regression to examine the adjusted associations in 30 499 Chinese (50+ years). Results: Height z-score was associated with lower white blood, lymphocyte and granulocyte cell counts. Leg length z-score was associated with lower white blood, lymphocyte and granulocyte cell counts and CRP. Sitting height z-score was associated with lower white blood and granulocyte cell counts, but not with lymphocyte cell count or CRP. Leg length/sitting height ratio z-score was associated with lower white blood, lymphocyte and granulocyte cell counts and CRP. Conclusion: Factors enabling more early growth may also lead to changes in immunity that are associated with reduced CVD risk. [ABSTRACT FROM AUTHOR]

China has been undergoing great social change due to its new focus on urbanization and globalization. Such change has had a tremendous adverse impact on the living conditions of millions of young children, simultaneously generating new interest in children's creativity development. The intersection of these two issues has important implications for China's future as it brings together one of China's core cultural values-'success in adversity'-the importance of creativity, and very real social and economic needs. 'Success in adversity' reflects the strongly held belief that individuals who suffer adverse environments can rise to excellence and success through persistence, effort, and creativity. In this article, we briefly explore the historical sources of this belief and how it is closely related to the Chinese conception of creativity. We then present some studies on the creativity of some of China's migrant children. Findings show that while migrant children as a group may not generally exhibit higher creativity than their urban peers as hypothesized, indications of resilience and creative potential suggest that the notion of success in adversity may contribute to the positive development of China's migrant children more substantially when it is informed by research and augmented by research-supported policy. © 2015 Wiley Periodicals, Inc. [ABSTRACT FROM AUTHOR]

Maternal expressed emotion (EE), including maternal criticism and emotional over-involvement, is considered an index of family emotional climate that is critical for children's psychological well-being. Limited research investigates how each element of EE differentially contributes to child behavior problems, or explores the mechanisms, such as child emotion dysregulation, through which parental EE influences child psychosocial outcomes. This study examined maternal EE, child emotion dysregulation, and child behavior problems among 60 mother-child dyads from a community sample, utilizing multi-method and multi-reporter assessment. Findings indicated that maternal expressed criticism toward the child was positively associated with child externalizing symptoms through its relation to increased child emotion dysregulation, whereas maternal emotional over-involvement was negatively associated with child externalizing symptoms through its negative relation to child emotion dysregulation. These results provided increased support for a model in which maternal criticism remains negatively associated with child psychosocial outcomes, but the construct of emotional over-involvement is not necessarily associated with youth psychosocial problems. This study also illustrated one pathway through which maternal EE influence child psychosocial functioning, thus placing EE research in the broader context of research on family emotion socialization. [ABSTRACT FROM AUTHOR]

Scant research has examined links between particular emotion socialization processes and child emotion functioning cross-nationally. In this study, we assessed a sample of 55 families from the United States (U.S.; 28 boys and 27 girls) and 49 families from China (27 boys and 22 girls) on family emotional expressiveness and children's emotional experiences and regulation. Results indicated that children and families from the U.S. reported greater emotional expressiveness than their Chinese counterparts. Children from the U.S. also reported greater undercontrolled emotion than Chinese youth. Family expression of positive emotion was related to effortful emotion regulation in U.S. youth only, whereas family expression of negative emotion was associated with undercontrolled emotion for both U.S. and Chinese children. Our findings advance context-specific models of emotional development by illustrating similarities and differences in emotional functioning among U.S. and Chinese families. From a clinical perspective, the findings suggest that practitioners should consider the cultural variations of emotion communication within families when conducting both assessment and therapy. [ABSTRACT FROM AUTHOR]

The China Family Panel Studies (CFPS), launched by Peking University, is a nearly nationwide, comprehensive, longitudinal social survey that is intended to serve research needs on a large variety of social phenomena in contemporary China. This article describes the background and characteristics of the CFPS, which was designed with the help of methods learned from the most influential survey projects in the world and their experiences. Extensive information is collected through computer-assisted person-to-person interviews of all family members. The questionnaires not only cover a wide range of topics but also consist of intergraded modules for rural and urban interviews, gathering information on family structure and family members, migrant mobility, event history (e.g., history of marriage, education, and employment), cognitive ability, and child development. The CFPS promises to provide the academic community with the most comprehensive and highest-quality survey data on contemporary China. [ABSTRACT FROM PUBLISHER]

Polycyclic aromatic hydrocarbons (PAH) are major toxic air pollutants released during incomplete combustion of coal. PAH emissions are especially problematic in China because of their reliance on coal-powered energy. The prenatal period is a window of susceptibility to neurotoxicants. To determine the health benefits of reducing air pollution related to coal-burning, we compared molecular biomarkers of exposure and preclinical effects in umbilical cord blood to neurodevelopmental outcomes from two successive birth cohorts enrolled before and after a highly polluting, coal-fired power plant in Tongliang County, China had ceased operation. Women and their newborns in the two successive cohorts were enrolled at the time of delivery. We measured PAH-DNA adducts, a biomarker of PAH-exposure and DNA damage, and brain-derived neurotrophic factor (BDNF), a protein involved in neuronal growth, in umbilical cord blood. At age two, children were tested using the Gesell Developmental Schedules (GDS). The two cohorts were compared with respect to levels of both biomarkers in cord blood as well as developmental quotient (DQ) scores across 5 domains. Lower levels of PAH-DNA adducts, higher concentrations of the mature BDNF protein (mBDNF) and higher DQ scores were seen in the 2005 cohort enrolled after closure of the power plant. In the two cohorts combined, PAH-DNA adducts were inversely associated with mBDNF as well as scores for motor (p = 0.05), adaptive (p = 0.022), and average (p = 0.014) DQ. BDNF levels were positively associated with motor (p = 0.018), social (p = 0.001), and average (p = 0.017) DQ scores. The findings indicate that the closure of a coal-burning plant resulted in the reduction of PAH-DNA adducts in newborns and increased mBDNF levels that in turn, were positively associated with neurocognitive development. They provide further evidence of the direct benefits to children's health as a result of the coal plant shut down, supporting clean energy and environmental policies in China and elsewhere. [ABSTRACT FROM AUTHOR]