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. Author manuscript; available in PMC: 2020 Nov 1.
Published in final edited form as: Paediatr Perinat Epidemiol. 2019 Sep 10;33(6):467–479. doi: 10.1111/ppe.12588

Figure 2.

Figure 2.

Predicted PALS-K Outcomes by Gestational Age, Stratified by Maternal Education or Medicaid Delivery Coverage (n = 151,592)

Legend for Maternal Education: shaded circle = 1–3 years of high school; shaded square = high school degree or equivalent; shaded triangle = 1–3 years of college; clear circle = 4 years of college; clear square = 5+ years of college.

Legend for Medicaid Delivery Coverage: shaded circle = non-Medicaid; shaded square = Medicaid.

Notes: The standardized PALS-K score has a mean of 0 and a standard deviation of 1. The literacy benchmark is a PALS-K score of at least 28 points (range 0–102). All predictions generated by ordinary least squares regression models adjusted for maternal age, maternal education, maternal race/ethnicity, maternal marital status, Medicaid delivery coverage, parity, and child’s sex. We included a gestational age-Medicaid delivery coverage interaction to stratify predictions by Medicaid delivery coverage, and we included a gestational age-maternal education interaction to stratify predictions by maternal education. Regressions are clustered at the mother level.