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Article

Non-Linear and Sex-Specific Effect of Maternal Pre-Pregnancy BMI on Emotional and Behavioral Development of Preschool Children: A Population-Based Cohort Study

1
Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, Hefei 230032, China
2
Key Laboratory of Population Health Across Life Cycle, Ministry of Education of the People’s Republic of China, Anhui Medical University, Hefei 230032, China
3
NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Hefei 230032, China
4
Anhui Provincial Key Laboratory of Population Health and Aristogenics, Hefei 230032, China
5
Scientific Research Center in Preventive Medicine, School of Public Health, Anhui Medical University, Hefei 230032, China
*
Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2022, 19(20), 13414; https://doi.org/10.3390/ijerph192013414
Submission received: 28 August 2022 / Revised: 5 October 2022 / Accepted: 14 October 2022 / Published: 17 October 2022
(This article belongs to the Special Issue Reproductive Health: Environmental Exposures and Nutrition)

Abstract

(1) Background: The aim was to examine the non-linear and sex-specific outcomes of maternal pre-pregnancy BMI on emotional and behavioral development of preschool children; (2) Methods: This study was based on the China-Anhui Birth Cohort (C-ABCS), including 3648 mother–child pairs. Maternal pre-pregnancy BMI was calculated from the maternal pre-pregnancy height and weight measured at the first antenatal checkup. Main caregivers completed the Strengths and Difficulties Questionnaire (SDQ) to assess children’s preschool emotional and behavioral development. A restricted cubic spline model was drawn using Stata version 15.1 to analyze the association between maternal pre-pregnancy BMI and preschoolers’ SDQ scores by sex; (3) Results: Among boys, maternal pre-pregnancy underweight was associated with the increased risk of conduct problems and pro-social behaviors, and pre-pregnancy overweight/obesity related with the increased risk of peer problems. Interestingly, when maternal pre-pregnancy BMI was between 18.50 kg/m2 and 18.67 kg/m2, boys had the increased risk of conduct problems. When pre-pregnancy BMI was between 18.50 kg/m2 and 19.57 kg/m2, boys had the increased risk of pro-social problems. No significant associations were observed; (4) Conclusions: A non-linear effect of maternal pre-pregnancy BMI on emotional and behavioral development has been found in preschool boys. In particular, pre-pregnancy normal weight may still affect boys’ emotional and behavioral development.
Keywords: maternal pre-pregnancy weight; emotional and behavioral development; preschool children; sex difference maternal pre-pregnancy weight; emotional and behavioral development; preschool children; sex difference

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MDPI and ACS Style

Lu, J.; Hao, X.; Zhu, L.; Guo, Y.; Wu, X.; Hao, J.; Tao, F.; Huang, K. Non-Linear and Sex-Specific Effect of Maternal Pre-Pregnancy BMI on Emotional and Behavioral Development of Preschool Children: A Population-Based Cohort Study. Int. J. Environ. Res. Public Health 2022, 19, 13414. https://doi.org/10.3390/ijerph192013414

AMA Style

Lu J, Hao X, Zhu L, Guo Y, Wu X, Hao J, Tao F, Huang K. Non-Linear and Sex-Specific Effect of Maternal Pre-Pregnancy BMI on Emotional and Behavioral Development of Preschool Children: A Population-Based Cohort Study. International Journal of Environmental Research and Public Health. 2022; 19(20):13414. https://doi.org/10.3390/ijerph192013414

Chicago/Turabian Style

Lu, Jingru, Xuemei Hao, Linlin Zhu, Yufan Guo, Xiaoyan Wu, Jiahu Hao, Fangbiao Tao, and Kun Huang. 2022. "Non-Linear and Sex-Specific Effect of Maternal Pre-Pregnancy BMI on Emotional and Behavioral Development of Preschool Children: A Population-Based Cohort Study" International Journal of Environmental Research and Public Health 19, no. 20: 13414. https://doi.org/10.3390/ijerph192013414

APA Style

Lu, J., Hao, X., Zhu, L., Guo, Y., Wu, X., Hao, J., Tao, F., & Huang, K. (2022). Non-Linear and Sex-Specific Effect of Maternal Pre-Pregnancy BMI on Emotional and Behavioral Development of Preschool Children: A Population-Based Cohort Study. International Journal of Environmental Research and Public Health, 19(20), 13414. https://doi.org/10.3390/ijerph192013414

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