Original ArticleBreastfeeding Persistence at 6 Months: Trends and Disparities from 2008 to 2015
Section snippets
Methods
This retrospective cohort study included singleton children who were born at 32-42 weeks of gestation at Kaiser Permanente Southern California (KPSC) hospitals between January 1, 2008 and December 31, 2015. KPSC is a large healthcare organization that provides comprehensive care and uses an electronic medical record system (EMR). The membership includes commercial, Medicare, Medi-Cal, Children's Health Insurance Program, and charitable coverage insurance. Demographic distribution of KPSC
Results
The cohort included in this report is comprised of 50% Hispanic, 26% non-Hispanic white, 8% non-Hispanic black, and 14% Asian and Pacific Islanders (Table I). Over 90% of the children were born to women age 20-39 years; 28% and 26% of the mothers were overweight or obese, respectively, at the onset of pregnancy. About one-third of the children were the first child and one-third were the second child in a family. About 40% of women had college or higher education, and 31% had some college
Discussion
Data from this large and multi-ethnic clinical cohort within an integrated healthcare system demonstrated a significant increase in rates of breastfeeding ≥6 months from 2008 to 2015 overall, and among each group (maternal race and ethnicity, age at delivery, prepregnancy obesity, parity, and level of education). Overall, the rate of breastfeeding ≥6 months increased from 46% in 2008 to 72% in 2015, a ∼56% increase over an 8-year period. However, disparities continued to exist over time for
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Supported by Kaiser Permanente Southern California Direct Community Benefit funds. The funding agencies had no role in the design or conduct of the study; in the analysis or interpretation of the data; or in the preparation, review, or approval of the manuscript. The authors declare no conflicts of interest.