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. Author manuscript; available in PMC: 2023 Jan 1.
Published in final edited form as: J Pediatr. 2021 Sep 28;240:24–30.e2. doi: 10.1016/j.jpeds.2021.09.035

Figure 2.

Figure 2.

aRR of extreme, moderate, and late preterm birth by maternal race, ethnicity, and nativity (N = 499 259). Models were adjusted for maternal age, marital status, insurance, education, tobacco use, medical comorbidities, and infant birth year.