Association of maternal nationality with preterm birth and low birth weight rates: analysis of nationwide data in Japan from 2016 to 2020.

Matern Health Neonatol Perinatol · 2023 · PMC9993667 · PMID 36882805

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an increasing trendno p-value reported

In Japan, a low birth weight rate had been known to have an increasing trend from the late twentieth century to the year 2010 [ 39 , 40 ], and a decrease in birth weight was also observed [ 41 ].

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