The final sample included 719 cases with no missing data on the study variables. Nearly half (46%) of the mothers reported an annual household income of less than $10,000, with an average household size of four, and 49% had not completed high school. Children in the study averaged 3.05 years, and 52% were females. Disease was highly prevalent: one third of the children had at least one cavitated carious lesion and 54.6% were classified as having ECC or S-ECC. The age-adjusted prevalence of disease was even higher for the older children in the group, described in detail elsewhere.33