| アブストラクト | BACKGROUND: Abusive head trauma (AHT) is a leading cause of fatal maltreatment in infancy. OBJECTIVE: To estimate the annual incidence of hospitalized AHT among infants in Japan from 2014 to 2022 and assess the impact of the COVID-19 pandemic and increasing male childcare-leave uptake. PARTICIPANTS AND SETTING: Infants <1 year old admitted to hospitals participating in the nationwide Diagnosis Procedure Combination (DPC) database in Japan. METHODS: We conducted a retrospective study identifying AHT admissions using ICD-10 codes, and calculated annual incidence using census data. We compared pre-COVID-19 (2014-2019) and COVID-19 (2020-2022) periods and examined the ecological association between AHT incidence and national male childcare-leave uptake. RESULTS: We identified 755 presumptive and 5019 possible AHT admissions across 10.4 million infant-years. Presumptive AHT incidence was 7.9/100,000 in 2014 and 10.5/100,000 in 2022, demonstrating year-to-year variation but no significant overall trend (P for trend = 0.91). The incidence rate ratio for the COVID-19 period versus pre-COVID-19 was 0.95 (95% CI 0.81-1.12). No significant association was found between male childcare-leave uptake and AHT incidence (rho = 0.15, P = 0.70). CONCLUSIONS: Hospitalized AHT incidence in Japan did not change significantly over 9 years. At the population level, neither the COVID-19 pandemic nor the increased uptake of male childcare leave was associated with a measurable change in the AHT burden. |
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| ジャーナル名 | Child abuse & neglect |
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| Pubmed追加日 | 2026/5/31 |
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| 投稿者 | Kawahara, Tomoki; Yamaoka, Yui; Fushimi, Kiyohide; Fujiwara, Takeo |
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| 組織名 | Department of Clinical Information Applied Sciences, Institute of Science Tokyo,;Tokyo, Japan.;Department of Public Health, Institute of Science Tokyo, Tokyo, Japan.;Department of Health Policy and Informatics, Institute of Science Tokyo, Tokyo,;Japan.;Department of Public Health, Institute of Science Tokyo, Tokyo, Japan. Electronic;address: fujiwara.hlth@tmd.ac.jp. |
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| Pubmed リンク | https://www.ncbi.nlm.nih.gov/pubmed/42217290/ |
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