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. 2023 Mar 13;43(4):477–483. doi: 10.1038/s41372-023-01643-2

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© The Author(s) 2023

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 1 — This figure illustrates the conceptual structural equation model. Please see Table S2 for factor loadings from the computed structural equation model. The factor loadings for the model predicting gestational age are used for illustration, but as can be seen in Tables S2,S3, the loadings for the model predicting birthweight controlling for gestational age are almost identical.