• Dimitris Karletsos, Charles Stoecker, Dovile Vilda, Katherine P Theall, and Maeve E Wallace.
• Department of Health Policy and Management, Tulane University School of Public Health & Tropical Medicine, New Orleans, Louisiana.
• Am J Prev Med. 2021 Dec 1; 61 (6): 787794787-794.

IntroductionA growing number of state legislatures have passed laws that restrict access to abortion care after a specified gestational age (gestational age limit laws). The impact of these laws on maternal and child population health outcomes and inequities is unknown. The objective of this study is to determine whether states that implement gestational age limit laws experience subsequent changes in rates of infant mortality.MethodsUsing U.S. population‒based data from the National Center for Health Statistics Linked Infant Birth-Death Files (2005-2017), difference-in-differences models were estimated using multivariable linear regressions to compare the trends in infant mortality (all-cause and cause-specific rates) in states with gestational age limit laws with the trends in states without such laws. Models stratified by maternal racial/ethnic group explored racial heterogeneity in the law's impact. Data were analyzed in 2020.ResultsThis study included 16,232,133 births in states that enacted a gestation age limit abortion law and 36,472,309 births in states that did not from 2005 to 2017. In difference-in-difference analyses, gestational age limit laws were associated with 0.23 excess infant deaths per 1,000 live births (95% CI=0.09, 0.37, p<0.01). In cause-specific analyses, gestational age limit laws were associated with 0.10 additional infant deaths owing to congenital anomalies per 1,000 live births (95% CI=0.03, 0.17, p=0.01). Associations between gestational age limit laws and infant mortality in models stratified by maternal racial/ethnic group were not statistically significant.ConclusionsOn the basis of data from 2005 to 2017, states that enacted gestational age limit abortion laws subsequently experienced increased infant mortality rates.Copyright © 2021 American Journal of Preventive Medicine. Published by Elsevier Inc. All rights reserved.

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