Relationship between parents' health literacy and children's sleep problems in Japan.

BACKGROUND: Sleep problems in preschool children can stunt their health and growth. However, the factors that cause sleep problems in children are not well understood. The aim of this study was to determine the relationship between parents' health literacy (HL) and children's sleep problems. The study was conducted at two kindergartens, two nursery schools, and a center for early childhood education in Chitose-city, Hokkaido, Japan. METHOD: This study used a multicenter cross-sectional design. The sample comprised 354 preschoolers (aged 3-6 years) and their parents. In families with two or more children attending the same facility, only the oldest child was asked to participate in the study. Exclusion criteria included participants whose completed questionnaires had missing values. Children's sleep problems were assessed using the Japanese version of the Children's Sleep Habits Questionnaire (CSHQ-J). Parents' HL was assessed using the 14-item Health Literacy Scale (HLS-14). The parents were classified into two groups (high HL group and low HL group). Multiple regression modelling was used to determine the association between HLS-14 and CSHQ-J scores. RESULTS: Of the 354 parents, 255 (72%) were in the high HL group and 99 (28%) in the low HL group. The mean CSHQ-J score was significantly lower in the high HL group than in the low HL group (45.3 ± 6.0 points vs. 46.8 ± 5.9 points, p = 0.043). In multiple regression analyses, parents' HL was independently associated with their CSHQ-J score after adjusting for all confounding factors (adjusted R2 = 0.22, ß = - 0.11; p = 0.043). CONCLUSIONS: Parents' HL appears to affect their children's sleep problems. This finding suggests that parents' HL may be a target for intervention to improve children's sleep problems.

Association between Parents' Social Capital and Physical Status in Preschool Children in Japan: A Cross-Sectional Multicentre Study.

OBJECTIVE: According to a World Health Organization report, in 2016, 41 million young children globally were overweight or obese. The connection between parents' social capital and their children's health has been studied, but associations between parental social capital and children's weight are largely unexamined. Hence, we assessed the relationship between preschool children's weight and parents' social capital. METHODS: We used BMI assessment data for 357 children (46.5% girls; mean age 5.3 years) in Japan. We examined parents' structural and cognitive social capital using a self-report questionnaire. RESULTS: Multiple logistic regression analysis revealed associations between parents' social capital and children's BMI. Seventy-two (20.2%) of the children had poor BMI (body mass index; overweight or thin). Interpersonal trust was significantly associated with normal BMI in children after adjustment for all confounding factors (OR 2.68; 95% CI, 1.33-5.44; P = .006) and was independently associated with other social capital factors, including norm of reciprocity (OR 3.38; 95% CI, 1.68-6.79; P < .001) and trust in organization (OR 1.24; 95% CI, 1.09-1.42; P = .001). CONCLUSION: Social capital factors were independently associated with each other. Japanese parents' high social capital was an independent predictor of normal BMI among preschool children.

Impact of Parents' Comprehensive Health Literacy on BMI in Children: A Multicenter Cross-Sectional Study in Japan.

BACKGROUND: Low-functional health literacy (HL) of parents influences poor child health outcomes. This study aimed to assess the relationship between comprehensive HL of parents and body mass index (BMI) of their children. METHODS: We enrolled 3- to 6-year-old preschool-aged children and their parents in this multicenter cross-sectional cohort study. We evaluated parents' comprehensive HL with the 14-item HL scale. Children's BMI categories were defined using International Obesity Task Force cutoffs according to age and sex. We analyzed differences in data between the high-HL group and the low-HL group and investigated the association between HL of parents and their children's BMI by multivariate logistic regression analysis. RESULTS: The high-HL group comprised 208 (75.1%) children and the low-HL group comprised 69 (24.9%) children of whom 23 (8.3%) were overweight and 35 (12.6%) were thin. The low-HL group had more children with poor BMI than the high-HL group. Multivariate analysis showed an association between the low HL of parents and the poor BMI of their children after adjustment for all other confounding factors. CONCLUSIONS: Comprehensive HL of parents appears to affect the BMI of their children independently, suggesting that interventions to improve HL in parents are necessary.

Associations between Parents' Health Literacy and Sleeping Hours in Children: A Cross-Sectional Study.

BACKGROUND: Sleep in preschool children is an important factor for their health and active lives. The lack of adequate sleep in preschool children is a serious public problem in Japan. The relationship between health literacy (HL) and health status is well recognized. The purpose of this study was to investigate the association between the sleep duration of preschool children and the HL of their parents. METHODS: In the present study, participants were preschool children (3-6 years) and their parents. We assessed the HL of the parents with the 14-item Health Literacy Scale (HLS-14) questionnaire. Sleep duration of the children was reported by their parents. We divided parents into two groups according to HLS-14 score and analyzed children's sleeping time separately. RESULTS: Data from 279 parents and their children were ultimately analyzed. The high HL group comprised 210 families (75.3%) and the low HL group comprised 69 families (24.7%). Average children's sleep duration was significantly longer in the high HL group (9.5 ± 0.9 h) than in the low HL group (9.1 ± 1.1 h) (p = 0.013). A positive correlation was found in the low HL group between parents' HL and their children's sleeping times (p < 0.01, r = 0.32) but the difference was not significant in the high HL group (p = 0.98, r = -0.0009). CONCLUSION: The HL of parents appears to affect their children's sleep duration, suggesting that parental HL may be an appropriate target for interventions aiming to lengthen children's sleeping time.