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Re-Examining the Cognitive Scale of the Developmental Support in Childcare
The Cognitive Scale of the Development Support in Childcare (CSDSC) developed in 2023 has adequate reliability and validity. However, it has some limitations in terms of its factor structure. Thus, we re-examined the structural factors, reliability, and validity of the scale using the same data (513 valid responses) as in the original study. In contrast to the two-factor model of the original scale, the revised scale has a one-factor structure. The scale’s Cronbach’s α value was 0.83. A confirmatory factor analysis used to assess whether a one- or two-factor structure was more appropriate for the scale demonstrated that the one-factor model was a better fit, and the revised scale had a higher degree of validity than the original one. The results indicate that the revised and shortened CSDSC has sufficiently high levels of reliability and validity, suggesting that the scale is appropriate for evaluating nursery teachers’ values regarding child development support in childcare.
Journal Article
COVID-19 pandemic and language development in children at 18 months: a repeated cross-sectional study over a 6-year period in Japan
ObjectiveTo evaluate the impact of the COVID-19 pandemic experience on language development among children, we compared language development at 18 months of age, before and during the pandemic in Japan, where strict control measures continued over a long period.MethodsThis was a repeated cross-sectional study and we included children who attended the 18-month health check-up provided by the Okayama City Public Health Center between January 2017 and December 2022 (n=33 484). We compared indicators of language development before (from January 2017 to February 2020) and during (from March 2020 to December 2022) the pandemic. Our primary outcome was the proportion of children who required follow-up for language development by the Public Health Center. The secondary outcome was the proportion of children who could not say three or more meaningful words. We estimated risk ratios (RRs) and their 95% CIs, adjusted for potential confounders.ResultsThe prevalence of the primary outcome was 33.5% before the pandemic and 36% during the pandemic. Compared with before the pandemic, increased RRs for the primary and secondary outcomes were observed during the pandemic, with RRs (95% CIs) of 1.09 (1.06–1.13) for the primary outcome and 1.11 (1.05–1.17) for the secondary outcome. Although the statistical interactions were not significant, the RRs were higher for children cared for at home than those in nursery schools and with ≤3 family members than those with ≥4 family members.ConclusionsThe COVID-19 pandemic was associated with an increased risk of impaired language development in children at 18 months. More extensive support is needed for higher risk families, as well as follow-up of long-term language development in children affected by the COVID-19 pandemic.
Journal Article
Impact of School Closures due to COVID-19 on Children with Neurodevelopmental Disorders in Japan
In March 2020, many schools were closed to prevent the spread of COVID-19 in Japan, and it is predicted that many children, especially those with neurodevelopmental disorders (NDDs), will be affected emotionally and behaviorally. Here, we examined the impact of school closures due to COVID-19 on school-aged children with NDDs using the Child Behavior Checklist. Totally, data on 121 children diagnosed with autism spectrum disorder, attention-deficit hyperactivity disorder, and/or intellectual disorder were analyzed and it was found that externalizing and aggressive behavior increased in all NDDs, regardless of the type of diagnosis. A clear prospect is important for children with NDDs children to lead a stable life, and more generous supports for children with NDDs and their families are needed.
Journal Article
Secular trends in early motor development between 1980 and 2010 in Japan
ObjectiveRecent changes in birth characteristics in Japan may have a potential influence on children’s developments. Therefore, we investigated secular trends in gross motor milestones.DesignData were collected from an official Japanese nationwide serial cross-sectional survey conducted every 10 years since 1960. 22 320 participants aged 2–18 months were identified from the four surveys from 1980 to 2010.OutcomesWe assessed whether or not a child achieved four gross motor milestones including rolling over (rolling), sitting without support (sitting), standing with support (standing) and walking alone (walking). The target age was defined as the age when the attainment rate ranged from >5% to >95% of the total. Multivariate logistic regression models were fitted.ResultsThe final cohort included 20 570 children. The target ages were determined as follows: 3–6 months for rolling; 5–9 months for sitting; 6–11 months for standing; and 9–15 months for walking. The attainment rates of sitting, standing and walking in 1990 were higher than those in 2010, even after adjusting for child characteristics (sitting: adjusted OR (aOR)=2.07 (95% CI 1.62 to 2.65); standing: aOR=1.63 (95% CI 1.32 to 2.02); and walking: aOR=1.61 (95% CI 1.34 to 1.95)).ConclusionsThe proportion of children who attained three motor milestones (sitting, standing and walking) by set target ages decreased between 1990 and 2010. The contribution of birth characteristics including a decrease in gestational age and fetal growth, as well as changes in other child characteristics, failed to explain why this decrease occurred.
Journal Article
Association between parents’ perceived social support and children’s psychological adjustment: a cross-sectional study
Background
This study examined the relationship between parents’ perceived social support and their children’s psychological adjustment.
Methods
This cross-sectional survey study was conducted in 52 kindergartens and 78 preschools in Nagoya, Aichi, a major metropolitan area in Japan. Parents of eighth-grade children aged 13–14 years (
N
= 1,195) completed a questionnaire. A total of 602 valid responses were received. To accurately assess the relationship between parents’ perceived social support and behavioral characteristics, respondents diagnosed with a developmental disability or who failed to answer the required questionnaire items were excluded from the analysis. Consequently, 536 (89.0%) of the 602 participants met the eligibility criteria.
Results
The results indicated that the stronger the social support for parents, the lower the scores for externalizing and internalizing problems, and the higher the scores for prosociality. Conversely, insufficient social support may pose a risk to parental mental health and lead to suboptimal parenting practices. Issues in parental mental health adversely affect parenting, leading to fewer positive interactions with young children, increased rates of negative interactions and hostility, diminished communication, and delayed responses to children’s behaviors.
Conclusions
These results underscore the significant influence of parents’ perceptions of social support on their parenting beliefs and behaviors, which may, in turn, affect the development of their children’s mental health. Therefore, parents’ perceptions of social support are likely positively associated with children’s mental health.
Journal Article
Efficacy of primary treatment with immunoglobulin plus ciclosporin for prevention of coronary artery abnormalities in patients with Kawasaki disease predicted to be at increased risk of non-response to intravenous immunoglobulin (KAICA): a randomised controlled, open-label, blinded-endpoints, phase 3 trial
Genetic studies have indicated possible involvement of the upregulated calcium-nuclear factor of activated T cells pathway in the pathogenesis of Kawasaki disease. We aimed to assess safety and efficacy of ciclosporin, an immunosuppressant targeting this pathway, for protection of patients with Kawasaki disease against coronary artery abnormalities.
We did a randomised, open-label, blinded endpoints trial involving 22 hospitals in Japan between May 29, 2014, and Dec 27, 2016. Eligible patients predicted to be at higher risk for intravenous immunoglobulin (IVIG) resistance were randomly assigned to IVIG plus ciclosporin (5 mg/kg per day for 5 days; study treatment) or IVIG (conventional treatment) groups, stratified by risk score, age, and sex. The primary endpoint was incidence of coronary artery abnormalities using Japanese criteria during the 12-week trial, assessed in participants who received at least one dose of study drug and who visited the study institution at least once during treatment. This trial is registered to Center for Clinical Trials, Japan Medical Association, number JMA-IIA00174.
We enrolled 175 participants. One patient withdrew consent after enrolment and was excluded and one patient (in the study treatment group) was excluded from analysis because of lost echocardiography data. Incidence of coronary artery abnormalities was lower in the study treatment group than in the conventional treatment group (12 [14%] of 86 patients vs 27 [31%] of 87 patients; risk ratio 0·46; 95% CI 0·25–0·86; p=0·010). No difference was found in the incidence of adverse events between the groups (9% vs 7%; p=0·78).
Combined primary therapy with IVIG and ciclosporin was safe and effective for favourable coronary artery outcomes in Kawasaki disease patients who were predicted to be unresponsive to IVIG.
Japan Agency for Medical Research and Development (grant CCT-B-2503).
Journal Article
Study Design and Participants’ Profile in the Sub-Cohort Study in the Japan Environment and Children’s Study (JECS)
Background: The Japan Environment and Children’s Study (JECS) is a nationwide birth cohort study investigating environmental effects on children’s health and development. A Sub-Cohort Study has begun, conducting extended exposure and outcome measurements by targeting a subgroup randomly selected from the JECS Main Study. We report the Sub-Cohort Study methodology and participants’ baseline profiles.Methods: Of 100,148 children in the JECS Main Study, children born after April 1, 2013 who met eligibility criteria ([1] all questionnaire and medical record data from children and their mothers collected from the first trimester to 6 months of age, [2] biospecimens [except umbilical cord blood] from children and their mothers collected at first to second/third trimester and delivery) were randomly selected for each Regional Centre at regular intervals. Face-to-face assessment of neuropsychiatric development, body measurement, paediatrician’s examination, blood/urine collection for clinical testing and chemical analysis, and home visits (ambient and indoor air measurement and dust collection) are conducted. Participants are followed up at 1.5 and 3 years old for home visits, and 2, 4, 6, and 8 years old for developmental/medical examination. The details of protocols after age 10 are under discussion.Results: Of 10,302 selected children, 5,017 participated. The profiles of the participating mothers, fathers and children did not substantially differ between the Main Study and Sub-Cohort Study.Conclusion: The JECS Sub-Cohort Study offers a platform for investigating associations between environmental exposure and outcomes.
Journal Article