Recent trends and risk factors of low birth weight in Liuzhou from 2012 to 2018

HU Min*; ZHANG Yu; ZENG Ting; LIU Liu; NONG Zheng; LIU Cheng-juan; QIN Hai-yan; ZENG Ding-yuan

doi:10.11852/zgetbjzz2021-0565

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Chinese Journal of Child Health Care ›› 2022, Vol. 30 ›› Issue (2) : 157-162. DOI: 10.11852/zgetbjzz2021-0565

Original Articles

Recent trends and risk factors of low birth weight in Liuzhou from 2012 to 2018

HU Min^*, ZHANG Yu, ZENG Ting, LIU Liu, NONG Zheng, LIU Cheng-juan, QIN Hai-yan, ZENG Ding-yuan

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Abstract

Objective To describe and analyze the trends and risk factors of the incidence rate of low birth weight (LBW) infants, so as to provide evidence for reducing the incidence of LBW. Methods Birth data of 394 225 births born in Liuzhou between 2012 and 2018 were retrospectively analyzed. The χ² test for trend was used to test the difference of LBW among years. Logistic regression model was adopted to identify significant risk factors associated with LBW. Results The incidence rate of LBW in Liuzhou from 2012 to 2018 was decreasing, with the highest and lowest incidence rates of 6.04% and 6.66% in the year 2014 and 2018, respectively. The risk of LBW among mothers aged 40 to 55 years was 84% higher than that of the mothers aged 25 to 29 years.The risk of LBW among Zhuang mothers was 4% higher than that of Han mothers.The risk of LBW among mothers with education level of elementary school and below was 62% higher than that of mothers with bachelor degree or higher. The risk of LBW among non-resident mothers was 99% higher than that of resident mothers, and the risk of LBW among primiparous mothers was 56%higher than that of multiparous mothers. During the period 2012 - 2018, 12.31% of the singleton births at 28 - 42 weeks were SGA infants, including preterm SGA and term SGA. While all the preterm SGA infants were LBW, 47.95% of preterm AGA and 16.97% of term SGA infants were LBW. Conclusions The incidence of LBW in Liuzhou shows a decreasing trend from 2012 to 2018, but is higher than the national average level. The occurrence of LBW is influenced by multiple factors, and preventive and intervention measures should be taken to reduce the incidence of LBW by targeting relevant risk factors.

Key words

low birth weight / preterm birth / small for gestational age / appropriate for gestational age / trend

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HU Min^*, ZHANG Yu, ZENG Ting, LIU Liu, NONG Zheng, LIU Cheng-juan, QIN Hai-yan, ZENG Ding-yuan. Recent trends and risk factors of low birth weight in Liuzhou from 2012 to 2018[J]. Chinese Journal of Child Health Care. 2022, 30(2): 157-162 https://doi.org/10.11852/zgetbjzz2021-0565

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