TY - JOUR AU - Li, Yun AU - Xiao, Qiuli AU - Chen, Min AU - Jiang, Chunhua AU - Kang, Shurong AU - Zhang, Ying AU - Huang, Jun AU - Yang, Yulin AU - Li, Mu AU - Jiang, Hong PY - 2024 DA - 2024/7/4 TI - Improving Parental Health Literacy in Primary Caregivers of 0- to 3-Year-Old Children Through a WeChat Official Account: Cluster Randomized Controlled Trial JO - JMIR Public Health Surveill SP - e54623 VL - 10 KW - health literacy KW - WeChat KW - cluster randomized controlled trial KW - RCT KW - randomized KW - controlled trial KW - controlled trials KW - parental KW - parenting KW - parents KW - parent KW - China KW - Chinese KW - mHealth KW - mobile health KW - app KW - apps KW - applications KW - pediatric KW - pediatrics KW - paediatric KW - paediatrics KW - infant KW - infants KW - infancy KW - baby KW - babies KW - neonate KW - neonates KW - neonatal KW - newborn KW - newborns KW - toddler KW - toddlers AB - Background: Parental health literacy is important to children’s health and development, especially in the first 3 years. However, few studies have explored effective intervention strategies to improve parental literacy. Objective: This study aimed to determine the effects of a WeChat official account (WOA)–based intervention on parental health literacy of primary caregivers of children aged 0-3 years. Methods: This cluster randomized controlled trial enrolled 1332 caregiver-child dyads from all 13 community health centers (CHCs) in Minhang District, Shanghai, China, between April 2020 and April 2021. Participants in intervention CHCs received purposefully designed videos via a WOA, which automatically recorded the times of watching for each participant, supplemented with reading materials from other trusted web-based sources. The contents of the videos were constructed in accordance with the comprehensive parental health literacy model of WHO (World Health Organization)/Europe (WHO/Europe). Participants in control CHCs received printed materials similar to the intervention group. All the participants were followed up for 9 months. Both groups could access routine child health services as usual during follow-up. The primary outcome was parental health literacy measured by a validated instrument, the Chinese Parental Health Literacy Questionnaire (CPHLQ) of children aged 0-3 years. Secondary outcomes included parenting behaviors and children’s health outcomes. We used the generalized linear mixed model (GLMM) for data analyses and performed different subgroup analyses. The β coefficient, risk ratio (RR), and their 95% CI were used to assess the intervention’s effect. Results: After the 9-month intervention, 69.4% (518/746) of caregivers had watched at least 1 video. Participants in the intervention group had higher CPHLQ total scores (β=2.51, 95% CI 0.12-4.91) and higher psychological scores (β=1.63, 95% CI 0.16-3.10) than those in the control group. The intervention group also reported a higher rate of exclusive breastfeeding (EBF) at 6 months (38.9% vs 23.44%; RR 1.90, 95% CI 1.07-3.38) and a higher awareness rate of vitamin D supplementation for infants younger than 6 months (76.7% vs 70.5%; RR 1.39, 95% CI 1.06-1.82). No significant effects were detected for the physical score on the CPHLQ, breastfeeding rate, routine checkup rate, and children’s health outcomes. Furthermore, despite slight subgroup differences in the intervention’s effects on the total CPHLQ score and EBF rate, no interaction effect was observed between these subgroup factors and intervention factors. Conclusions: Using a WHO literacy model–based health intervention through a WOA has the potential of improving parental health literacy and EBF rates at 6 months. However, innovative strategies and evidence-based content are required to engage more participants and achieve better intervention outcomes. Trial Registration: Chinese Clinical Trial Registry ChiCTR2000031711; https://www.chictr.org.cn/showproj.aspx?proj=51740 SN - 2369-2960 UR - https://publichealth.jmir.org/2024/1/e54623 UR - https://doi.org/10.2196/54623 DO - 10.2196/54623 ID - info:doi/10.2196/54623 ER -