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January 1, 2026Open Access

Age-specific impact of COVID-19 on birth rates in Japan: An interrupted time-series analysis using national vital statistics.

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Key Points

To analyze how COVID-19 affects birth rates in Japan, focusing on different age groups of women.
Utilized national vital statistics for data on birth rates.
Conducted an interrupted time-series analysis to assess changes over time.
Examined age-specific trends in birth rates before and during the pandemic.
Observed a decrease in birth rates overall during the pandemic.
Noted a more significant drop in birth rates among younger women compared to older women.

Implication

Interrupted time-series analysis shows differing birth rate impacts by age among women during COVID-19, suggesting significant effects.

Abstract

These findings suggest that the pandemic's effect on birth rates varies by women's age, with a more pronounced decrease among younger women.

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Cite This Study

Tasuku Okui (2026) studied this question.

synapsesocial.com/papers/6974610cbb9d90c67120ae93 https://doi.org/10.1371/journal.pone.0341340

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