Table 2 Summary of variables selected in four main risk domains, encompassing socioeconomic factors, child oral health behavior and practices, child feeding practices, and dietary factors, at different steps of model selection process using logistic regression (LR) analysis*

 Father’s education

X

–

–

 Mother’s education

X

X

X

 Parent’s occupation

X

X

–

 Family monthly income

X

X

X

 Region of residence

X

X

–

 Type of residence

X

–

–

 Medical insurance with dental coverage

X

X

X

 Frequency of brushing teeth per day

X

X

X

 Started brushing teeth at the age

X

X

X

 Dental floss use

–

–

–

 Mouthwash use

X

–

–

 Frequency of fluoride application

X

X

–

 Recent visit to dentist

X

–

–

 Reason for recent dental visit

X

X

X

 Child ate after brushing teeth in the night

X

–

–

 Type of milk feeding practice

X

X

X

 Age of the child when breast feeding was stopped

X

X

†

 Age of the child when drinking with a bottle was stopped

–

–

–

 Child sleeps with bottle in mouth

X

X

X

 Number of meals per day

–

–

–

 Number of snacks consumed between meals

X

X

X

 Snack time corresponding to main meals

X

X

–

 Multivitamin supplementation

–

–

–

 Fresh fruits

X

X

X

 Fresh vegetables or salads

X

–

–

 Fast food

X

–

–

 Candy

X

–

–

 Potato chips

X

–

–

 Sweetened chewing gum

X

–

–

 Fresh juice

X

X

–

 Flavored juices

–

–

–

 Soft drinks

X

X

X

 Fresh milk

X

–

–

 Flavored milk

X

X

X