Definition: Percentage of newborns fed breast milk during their hospitalization, by type of breastfeeding (e.g., in 2018, 70.4% of newborns born in a hospital to California women were fed breast milk exclusively). Exclusive breastfeeding includes newborns who received breast milk only; any breastfeeding includes newborns who were breastfed exclusively and those who received both breast milk and formula.
Data Source: California Dept. of Public Health, In-Hospital Breastfeeding Initiation Data (Oct. 2019).
Footnote: Data are based on feedings from birth to the time of specimen collection by the Newborn Screening Program (usually 24 to 48 hours after birth). County-level data reflect the mother's county of residence. The notation S refers to (a) numbers that have been suppressed because there were fewer than 10 cases and (b) percentages that have been suppressed because there were fewer than 20 cases.