Assessment of risk factors for early childhood caries at different ages and caries levels in Shandong, China and guidance for dental health education: a cross-sectional study
Abstract Background Dental health education (DHE) plays a vital role in the prevention of early childhood caries (ECC). There are a large number of studies on ECC risk factor assessment to enrich the content of DHE, but such research rarely provides some guidance and assistance for the design and optimization of DHE strategies. Therefore, this study aims to improve this information by analyzing risk factors at different ages and caries levels.Methods The children aged 3-5-year-old was enrolled in this cross-sectional study. Their oral condition was evaluated according to WHO criteria. Simultaneously, a questionnaire containing the oral health knowledge, attitude, practice (KAP) was completed by guardians. Chi-square test and regression analysis were performed to analyze the ECC difference of KAP variables in different grouping methods, and to construct models to assess the risk factors.Results A total of 1301 children’s data were included for statistical analysis. Caries prevalence was 64.6%, the dmft mean was 3.15. Independent associations with increased risk for ECC were age, some KAP variables related to feeding, sugar consumption, and brushing ( P =0.000 based on multivariable regression analysis). 3-year-old group were primarily associated with some KA variables ( P =0.000). As children grow up, practice variables became the main risk factor (4- and 5-year old age group model: P=0.014 and 0.000). And more practice variables were independently associated with the severe-caries-group than mild-caries-group (P=0.000).Conclusion This survey demonstrates that the ECC-related risk factors in different ages and different caries levels are different, which will facilitate us to design more personalized and strategic DHE content.