Accès ouvert
2026
article
OpenAlex
Takuya Inouye, Daisuke Higeta, Kei Hamazaki, Akira Iwase et autres
PURPOSE: Hypertensive disorders of pregnancy (HDP) are a leading cause of maternal and perinatal morbidity. Although n-3 polyunsaturated fatty acids (PUFAs) in fish may prevent HDP, evidence from Japanese populations, particularly regarding the preconception period, remains limited. To examine associations between fish …
jp
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Accès ouvert
2026
article
OpenAlex
Kanako SHIMADA, Kenta Matsumura, Haruka Kasamatsu, Hitomi Inano et autres
To examine the association between maternal house dust–related cleaning behaviors during pregnancy and neurodevelopmental outcomes from 18 months to 3 years of age. Data from 81,125 mother–child pairs who participated in the Japan Environment and Children’s Study (JECS) were analyzed. Mothers were …
jp
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Accès ouvert
2026
article
OpenAlex
Kenta Matsumura, Hidekuni Inadera, Megumi Kushima, Akiko Tsuchida et autres
Background Onset of Kawasaki disease has been linked to atmospheric dust and various everyday environmental exposures, including immune stimulation; however, its association with household-specific indoor particulate matter (PM) concentrations remains unclear. Therefore, we examined the associations of indoor PM 2.5 and PM …
jp
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Accès ouvert
2026
article
OpenAlex
Mitsue Nagamine, Kenta Matsumura, Junko Sakai, Akiko Tsuchida et autres
Unintended pregnancies can cause stress, adversely affecting maternal and child health. This study examined the impact of negative feelings about pregnancy on child developmental delays and the mediating role of social support. Data from the Japan Environment and Children's Study, involving 73,518 …
jp
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Accès ouvert
2026
article
OpenAlex
Megumi Mizawa, Kenta Matsumura, Teruhiko Makino, Akiko Tsuchida et autres
Children have up to three3 times the annual sun exposure of adults. This cross-sectional study evaluated sun protection behaviorbehaviour, related factors, and the incidence of photosensitivity in Japanese children. A self-administered questionnaire administered to mothers of second2nd-grade children as part of the …
jp
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Accès ouvert
2026
article
OpenAlex
Kenta Matsumura, Hitomi Inano, Junko Sakai, Kanako SHIMADA et autres
BACKGROUND: Antibiotic use has recently emerged as a potential risk factor for psychiatric disorders, but evidence regarding its risk during pregnancy remains limited, despite the frequent use of antibiotics in pregnant women. We investigated the association between antibiotic use in the year …
jp
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Accès ouvert
2025
article
OpenAlex
Kenta Matsumura, Tomomi Tanaka, Akiko Tsuchida, Takehiro Hatakeyama et autres
Importance: Maternal psychological distress is a risk factor for neurodevelopmental delay in the offspring, but no previous studies have examined this while considering the bidirectional relationship between psychological distress and child development over time. Objective: To estimate the risk of neurodevelopmental delay …
jp
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Accès ouvert
2025
article
OpenAlex
Hidekuni Inadera, Kenta Matsumura, Haruka Kasamatsu, Akiko Tsuchida
BACKGROUND: It has been suggested that working long hours affects workers' mental health, although findings have been inconsistent. In this study, we investigated the association of working hours with psychological distress in a population of Japanese men with pregnant partners, using data …
jp
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Accès ouvert
2025
article
OpenAlex
Ikuyo Sanzen, Kenta Matsumura, Akiko Tsuchida, Kei Hamazaki et autres
Bonding disorders are known to have significant negative effects on mother-to-infant interactions and nurturing behaviours. In this study, we examined the relationship of dietary intake of omega-3 polyunsaturated fatty acids (PUFAs) and fish with mother-to-infant bonding at 1 and 6 months postpartum. …
jp
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Accès ouvert
2025
article
OpenAlex
Hidekuni Inadera, Kenta Matsumura, Takashi Yoda, Takashi Nakano et autres
BACKGROUND: The relationship of pre-pregnancy body mass index (BMI) and gestational weight gain (GWG) with continued breastfeeding (BF) in Japanese women remains unclear. To evaluate different maternal pre-pregnancy BMI and GWG categories according to the initial BMI, we conducted an analysis of …
jp
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Accès ouvert
2025
article
OpenAlex
Akiko Tsuchida, Haruka Kasamatsu, Tomomi Tanaka, Kenta Matsumura et autres
BACKGROUND: Previous studies have demonstrated that paternal involvement in childcare for infants up to 6 months of age can prevent injuries in children up to 18 months of age. However, the relationship after 18 months of age has not been clearly established. …
jp
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Accès ouvert
2024
article
OpenAlex
Hidekuni Inadera, Kenta Matsumura, Haruka Kasamatsu, Akiko Kitase et autres
OBJECTIVE: Previous studies have reported that ambient air pollutants such as PM2.5 can increase the risk of adverse birth outcomes. The objective of this study was to ascertain whether air purifier usage during pregnancy is associated with a lower risk of adverse …
jp
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