BACKGROUND AND OBJECTIVE: Early childhood caries (ECC) is a potentially severe disease affecting children all over the world. The available findings are mostly based on a logistic regression model, but data mining, in particular association rule mining, could be used to extract more information from the same data set. METHODS: ECC data was collected in a cross-sectional analytical study of the 10% sample of preschool children in the South Backa area (Vojvodina, Serbia). Association rules were extracted from the data by association rule mining. Risk factors were extracted from the highly ranked association rules. RESULTS: Discovered dominant risk factors include male gender, frequent breastfeeding (with other risk factors), high birth order, language, and low body weight at birth. Low health awareness of parents was significantly associated to ECC only in male children. CONCLUSIONS: The discovered risk factors are mostly confirmed by the literature, which corroborates the value of the methods.
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