Sakakihara Aya, Haga Chiyori, Kinjo Aya, Osaki Yoneatsu
Department of Community Health Nursing, Faculty of Medicine, Shimane University, 89-1 Enya-cho, Izumo city, 693-8501, Shimane prefecture, Japan.
Graduate School of Medicine, Department of Community Nursing, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, 761-0793, Kagawa Prefecture, Japan.
BMC Pediatr. 2025 Jul 2;25(1):518. doi: 10.1186/s12887-025-05873-5.
Severe early childhood caries (S-ECC) is a child health challenge associated with neglect and represents a public health concern that can impact development and future lifestyle-related diseases. Despite its significance, studies identifying its associated factors have been scarce in developed countries. The aim of this study was to clarify the association between mothers' prolonged Internet usage when their children are 1.5 years old and S-ECC at 3 years old.
We included mothers who had notified Matsue City of their pregnancies during the 18-month period from April 2016 to September 2017, and their children. The data provided by the city were 2,465 records, with a follow-up rate of 82.5% from pregnancy notification to child health examination at Age 3. Excluding cases lacking information or indications of the presence of dental caries at Age 1.5, we analyzed 1,938 records. We performed logistic regression analysis, with S-ECC as the dependent variable and the mother's Internet usage time at Age 1.5 as the independent variable, while including parental toothbrushing supervision and other factors as covariates.
The mother's daily Internet usage time at Age 1.5 was more than 5 h in 2.0%. Children classified as having S-ECC at Age 3 accounted for 2.6%. We found a significant association between mothers' Internet usage time at Age 1.5 and S-ECC in their children at Age 3 when the daily Internet usage time was 5 h or longer (adjusted odds ratio = 4.27 [95% CI: 1.42-12.86]).
These findings suggest that Internet usage for 5 h or longer/day by mothers is associated with an increased likelihood of S-ECC in their children.
重度幼儿龋齿（S-ECC）是一项与忽视相关的儿童健康挑战，是一个可能影响发育及未来与生活方式相关疾病的公共卫生问题。尽管其具有重要意义，但在发达国家，识别其相关因素的研究却很匮乏。本研究旨在阐明孩子1.5岁时母亲长时间上网与孩子3岁时患S-ECC之间的关联。
我们纳入了在2016年4月至2017年9月这18个月期间向松江市政府通报怀孕情况的母亲及其子女。该市提供的数据有2465条记录，从怀孕通报到孩子3岁时进行儿童健康检查的随访率为82.5%。排除1.5岁时缺乏信息或有龋齿迹象的病例后，我们分析了1938条记录。我们进行了逻辑回归分析，以S-ECC作为因变量，以母亲在孩子1.5岁时的上网时间作为自变量，同时将父母刷牙监督及其他因素作为协变量。
1.5岁时母亲的每日上网时间超过5小时的占2.0%。3岁时被归类为患有S-ECC的儿童占2.6%。我们发现，当母亲在孩子1.5岁时的每日上网时间为5小时或更长时，其上网时间与孩子3岁时患S-ECC之间存在显著关联（调整后的优势比=4.27 [95%置信区间：1.42 - 12.86]）。
这些发现表明，母亲每天上网5小时或更长时间与孩子患S-ECC的可能性增加有关。
