Jiahong Sun1, Lisha Wu1, Yuanyuan Zhang1, Chunan Li1, Yake Wang1, Wenhua Mei2,3, Jianduan Zhang4. 1. Department of Maternal and Child Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Rd., Wuhan, 430030, Hubei, China. 2. Department of Information, Zhuhai Public Hospital Administration, 41 Jiaoyu Rd., Zhuhai, 519000, Guangdong, China. 3. Department of Epidemiology, Jinan University, 601 Huangpu Western Rd., Guangzhou, 510632, Guangdong, China. 4. Department of Maternal and Child Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Rd., Wuhan, 430030, Hubei, China. jd_zh@mail.hust.edu.cn.
Abstract
BACKGROUND/ OBJECTIVES: Few studies have examined the effects of the weight status at birth and preschool age on the risk of elevated blood pressure (EBP) in early childhood, and whether the effects can be modified by breastfeeding duration remains unclear. We aimed to evaluate the effects of high birth weight (HBW) with overweight/obese or abdominal obesity on the risk of EBP in preschoolers, and further evaluate the effects classified by breastfeeding duration (<6 and ≥6 months). SUBJECTS/ METHODS: This cross-sectional study was conducted in 2018 in Zhuhai, China. Out of 2390 3-4-year-old preschoolers originally recruited, a total of 1899 were included in the analysis. Logistic regression analysis was performed to examine the effects of the weight status at the two age points and breastfeeding duration on the risk of EBP. RESULTS: Preschoolers with current overweight/obese had a 1.13-fold increased risk of EBP than those with persistent normal weight, irrespective of their birth weight. However, the preschoolers with HBW had no increased risk of EBP, when they became normal weight (OR 1.70, 0.78-3.72). Similar results were found for the current abdominal obesity and the risk of EBP. In addition, the EBP risk of obese status was minimized if preschoolers were breastfed for ≥6 months. CONCLUSIONS: Obesity status at preschool age can increase the risk of EBP, irrespective of birth weight. However, this EBP risk can be mitigated if HBW changes to current normal weight. Longer breastfeeding duration can partially offset the risk of EBP in preschoolers with obesity status.
BACKGROUND/ OBJECTIVES: Few studies have examined the effects of the weight status at birth and preschool age on the risk of elevated blood pressure (EBP) in early childhood, and whether the effects can be modified by breastfeeding duration remains unclear. We aimed to evaluate the effects of high birth weight (HBW) with overweight/obese or abdominal obesity on the risk of EBP in preschoolers, and further evaluate the effects classified by breastfeeding duration (<6 and ≥6 months). SUBJECTS/ METHODS: This cross-sectional study was conducted in 2018 in Zhuhai, China. Out of 2390 3-4-year-old preschoolers originally recruited, a total of 1899 were included in the analysis. Logistic regression analysis was performed to examine the effects of the weight status at the two age points and breastfeeding duration on the risk of EBP. RESULTS: Preschoolers with current overweight/obese had a 1.13-fold increased risk of EBP than those with persistent normal weight, irrespective of their birth weight. However, the preschoolers with HBW had no increased risk of EBP, when they became normal weight (OR 1.70, 0.78-3.72). Similar results were found for the current abdominal obesity and the risk of EBP. In addition, the EBP risk of obese status was minimized if preschoolers were breastfed for ≥6 months. CONCLUSIONS:Obesity status at preschool age can increase the risk of EBP, irrespective of birth weight. However, this EBP risk can be mitigated if HBW changes to current normal weight. Longer breastfeeding duration can partially offset the risk of EBP in preschoolers with obesity status.
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