A prospective analysis of optimal total weight gain ranges and trimester-specific weight gain rates for Chinese pregnant women.

BMC Pregnancy Childbirth · 2023 · PMC9872325 · PMID 36694176

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an increasing trendno p-value reported

There is an increasing trend of delayed childbearing in China, given the fertility rate of women aged 30–34 years increased from 5.7‰ in 1995 to 18.6‰ in 2015, whereas the rate declined for younger women [ 38 , 39 ].

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