Supplementary Material for: Prevalence of and factors Influencing Oral Health Behaviours in 2-Year-Old Children: a cross-sectional analysis of data from the KUNO-Kids health study

Introduction: This questionnaire-based investigation aimed to assess Oral Health Behaviour (OHB) in 2-year-old children taking part in a birth cohort study and to identify relationships between general health, socioeconomic as well as psychosocial factors and OHB. Methods: Factors examined were single parent status, migration background, child’s sex, parity, maternal age, education and social support, paternal employment, parental mental and physical health and child health, data for which were collected at birth, 4 weeks, or 1 year. Participants who answered all OHB questions at 2-years (n=730) were included. Nutritional score (NS), tooth brushing score (TS), and dental check-up score (CS) were used to calculate overall OHB score. Results: Overall OHB in this cohort was good. 62% ate fruit or vegetables daily, 75% brushed 2-3 times daily and 61% had already had a dental check-up. Children of single-mothers had significantly lower OHB scores. NS was significantly higher for children with migration background, children of mothers with better physical health or higher educational level, but lower for children of mothers reporting poor social support. TS was significantly lower in children of single-mothers and children of fathers reporting poorer mental health. CS was significantly higher in children of multiparous mothers. This study highlights the relevance of social support and parental health, in contributing to OHB patterns. Conclusion: Families with special healthcare needs or less robust social support may have difficulty maintaining good OHB.

引言：本调查基于问卷调查，旨在评估参与出生队列研究的2岁儿童口腔健康行为（OHB），并探究一般健康状况、社会经济因素以及心理社会因素与OHB之间的关联。方法：考察的因素包括单亲家庭状态、移民背景、儿童性别、生育次数、母亲年龄、教育程度和社会支持、父亲就业情况、父母的身心健康状况以及儿童健康状况，相关数据在出生时、4周或1岁时收集。在2岁时回答了所有OHB问题的参与者（n=730）被纳入研究。采用营养评分（NS）、刷牙评分（TS）和牙科检查评分（CS）计算整体OHB评分。结果：该队列的整体OHB状况良好。62%的儿童每日食用水果或蔬菜，75%的儿童每日刷牙2-3次，61%的儿童已经进行过牙科检查。单亲母亲的子女的OHB评分显著较低。具有移民背景的儿童、母亲身体状况较好或教育水平较高的子女的NS显著较高，而母亲报告社会支持较差的子女的NS则较低。单亲母亲的子女和父亲报告心理健康状况较差的子女的TS显著较低。多胎母亲的子女的CS显著较高。本研究突出了社会支持和父母健康状况在塑造OHB模式中的相关性。结论：具有特殊医疗需求或社会支持较为薄弱的家庭可能难以维持良好的OHB。