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3 IPUMS-USA, University of Minnesota, ipums.org. American Community Survey, US Census Bureau.
4 PUMS-CPS, University of Minnesota, ipums.org. Current Population Survey, US Census Bureau.
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7 Waitzman NJ and Jalali A. Updating National Preterm Birth Costs to 2016 with Separate Estimates for Individual States. Salt Lake City, UT: University of Utah; 2019.
8 Kaiser Family Foundation, https://www.kff.org/health-reform/state-indicator/state-activity-around-expanding-medicaid-under-the-affordable-care-act/. Retrieved on June 30, 2019.
9 Health Resources and Services Administration. Title V Maternal and Child Block Grant Program. Available at: https://mchb.hrsa.gov/data-research-epidemiology. Retrieved on September 12, 2019.