Updated on 2026/07/24

写真a

 
Hironaka Aiko
 
Organization
Faculty of Health Sciences Assistant Professor
Position
Assistant Professor
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Degree

  • 修士 ( 2016.3   岡山大学大学院保健学研究科 )

Research Interests

  • コペアレンティング

  • 育児支援

  • 子ども虐待防止

  • ウィメンズヘルス

Research Areas

  • Life Science / Lifelong developmental nursing  / 助産学

  • Life Science / Ecology and environment  / 家族看護学

Education

  • Okayama University   大学院保健学研究科  

    2014.4 - 2016.3

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  • 大阪大学大学院医学系研究科    

    2024.4

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Research History

  • Okayama University   学術研究院保健学域   Assistant Professor

    2021.10

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Professional Memberships

Committee Memberships

  • 全国助産師教育協議会   助産師教育共用試験OSCE評価者養成研修 運営  

    2024.12   

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    Committee type:Academic society

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  • 岡山県母性衛生学会   幹事・運営  

    2024.10   

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    Committee type:Academic society

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  • 岡山県母性衛生学会   幹事  

    2024.7   

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    Committee type:Academic society

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  • 全国助産師教育協議会   助産師国家試験プール問題作成・登録協力員  

    2022.6 - 2023.1   

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  • 岡山性感染症研究会   世話人  

    2022.4   

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    Committee type:Academic society

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Papers

  • Paternity Leave Duration and Maternal Depressive Symptoms: A Longitudinal Study of Paternal Involvement and Coparenting in Japan Reviewed

    Aiko Hironaka, Hiroko Watanabe

    Frontiers in Public Health   14   2026.7

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.3389/fpubh.2026.1891071

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  • Paternity leave, supportive involvement, and maternal postpartum adjustment: parity-stratified associations in a structural equation model Reviewed

    Aiko Hironaka, Shoko Sugao, Masayuki Endo, Hiroko Watanabe

    Frontiers in Psychology   17   2026.7

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Frontiers Media SA  

    Background

    How paternity leave relates to postpartum adjustment remains unclear.

    Objective

    We examined associations of paternity leave group [no leave, short (<1 month), or long (≥1 month)] with mothers’ parenting adaptation and depressive symptoms at 3 months postpartum in a theory-guided SEM including mothers’ reports of fathers’ childcare and housework involvement and perceived coparenting quality.

    Methods

    This cross-sectional survey included 555 mothers (primipara, n  = 330; multipara, n  = 225). Participants completed questionnaires assessing fathers’ involvement using the Child Care Activities and Housework Scale, coparenting quality using the Coparenting Relationship Scale, parenting resilience and adaptation using the Comprehensive Scale for Parenting Resilience and Adaptation, and depressive symptoms using the Center for Epidemiologic Studies Depression Scale. Parity-stratified SEM estimated associations.

    Results

    In primiparous families, short and long leave were associated with higher paternal involvement; long leave had stronger associations across all four domains: Interactional Activities, Concrete Childcare Activities, Mental Support, and Housework. In multiparous families, leave was associated mainly with housework and task-based childcare, but not clearly with mental support. Across parity groups, mothers’ reports of fathers’ mental support showed the strongest association with mothers’ perceived coparenting quality [primipara: β  = 0.411, 95% CI (0.285, 0.527); multipara: β  = 0.490, 95% CI (0.350, 0.612)]. Better coparenting was associated with fewer perceived difficulties in environmental resources and perceived support and with lower psychological maladaptation to parenting; psychological maladaptation was positively associated with depressive symptoms in both groups [primipara: β  = 0.396, 95% CI (0.178, 0.571); multipara: β  = 0.301, 95% CI (0.133, 0.459)]. Because no direct paths from paternity leave to depressive symptoms were specified, total effects represented indirect associations. These associations were small and negative for both short and long leave among primiparous mothers; among multiparous mothers, only short leave showed a small negative indirect association, whereas the association for long leave was not clearly supported.

    Conclusion

    Paternity leave duration showed small indirect associations with maternal parenting adaptation and depressive symptoms through fathers’ involvement and coparenting quality. The findings suggest that the potential relevance of leave may depend not only on uptake and duration but also on supportive involvement and coparenting.

    DOI: 10.3389/fpsyg.2026.1807103

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Books

  • 根拠がわかる 疾患別看護過程 改訂第3版

    新見明子他( Role: Joint author ,  周産期の正常過程と標準的看護過程・不妊症)

    南江堂  2021.7 

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MISC

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Presentations

  • Effects of Paternity Leave on Maternal Depressive Symptoms at 3 Months Postpartum: A Multigroup Mediation Analysis of Paternal Caregiving and Coparenting

    Aiko Hironaka, Hiroko Watanabe

    2026.2.27 

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    Event date: 2026.2.26 - 2026.2.28

    Language:English  

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  • 予定帝王切開術を受ける妊婦のバースプランへの意識

    岩崎美江, 高取佐智子, 小出さとみ, 中谷藍子, 大飼麻衣, 大森菜未, 冨谷友美, 中塚幹也

    第31回岡山県母性衛生学会 

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    Event date: 2015.10

    Language:Japanese   Presentation type:Oral presentation (general)  

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  • 産後うつ病への看護介入に関する文献検討

    弘中藍子

    第60回日本母性衛生学会  2019.10 

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    Presentation type:Poster presentation  

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  • 岡山県児童相談所に寄せられた児童虐待通告事例の背景

    中谷藍子, 水嶋明子, 浅尾茂樹, 小寺良成, 井上博子, 梶岡亘子, 野口正行, 来住由樹, 国富泰二, 中塚幹也

    第22回岡山県保健福祉学会  2016.1 

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    Language:Japanese  

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  • 文献レビューから見る乳児期の父親に対する育児支援内容と課題

    中谷藍子, 江角昌美, 大橋知子, 井田歩美

    第54回母性衛生学会  2013.10 

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    Language:Japanese   Presentation type:Poster presentation  

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  • 硬膜外無痛分娩群と自然分娩群における母乳育児成功率の比較研究

    木村梨絵, 江角昌美, 中谷藍子

    第53回母性衛生学会  2012.11 

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    Language:Japanese   Presentation type:Oral presentation (general)  

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  • 当院における自律授乳の実態とそれに影響を与える因子について

    中谷藍子, 三谷久美子

    第52回母性衛生学会  2011.9 

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    Language:Japanese   Presentation type:Oral presentation (general)  

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  • 児童相談所に寄せられた児童虐待通告事例の背景

    中谷藍子, 中塚幹也

    第57回日本母性衛生学会 

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    Language:Japanese   Presentation type:Oral presentation (general)  

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Research Projects

  • Longitudinal Effects of Adaptation Resources on Maternal Postpartum Mental Health Across Parity

    2026.04 - 2027.03

    科学技術人材育成費補助金 ダイバーシティ研究環境実現イニシアティブ 

    Aiko Hironaka

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    Authorship:Principal investigator 

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  • 里帰り分娩をしない親のコペアレンティングの特徴解明による育児支援体制の構築

    Grant number:23K10104  2023.04 - 2028.03

    日本学術振興会  科学研究費助成事業  基盤研究(C)

    弘中 藍子, 中塚 幹也, 横溝 珠実, 渡邊浩子

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    Authorship:Principal investigator 

    Grant amount:\4290000 ( Direct expense: \3300000 、 Indirect expense:\990000 )

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  • レジリエンス促進支援を必要とする早期乳がん患者の特徴の解明

    Grant number:21K10766  2021.04 - 2025.03

    日本学術振興会  科学研究費助成事業  基盤研究(C)

    末田 朋美, 森 恵子, 芳我 ちより, 弘中 藍子

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    Grant amount:\3900000 ( Direct expense: \3000000 、 Indirect expense:\900000 )

    <BR>
    本研究は、レジリエンス促進支援を必要とする乳がん患者の特徴を解明することを目的とし、乳がん患者のレジリエンスおよび関連すると予想される因子を調査する。レジリエンスは、逆境に曝された個人の回復力または回復過程を説明する概念である。本研究においては回復力としてのレジリエンスに着目している。先行研究ではレジリエンスとQOLに正の相関があると明らかにされ、レジリエンスが高い乳がん患者はQOLが高く、レジリエンスが低い乳がん患者はQOLが低いとされる。この前提のもとレジリエンスの関連要因を調査することとしており、レジリエンス測定に世界的に最も使用の多いレジリエンス尺度CD-RISCを用いることとした。しかし、レジリエンスとQOLの関連性を評価した研究は海外での研究結果であり、日本においてCD-RISCを用いたレジリエンス研究は少なく、日本人におけるCD-RISC得点とQOLは明らかにされていない。本研究では当初の計画ではQOLを同時に調査することは予定していなかったが、レジリエンスが文化・社会的文脈に影響を受けることを考慮し、レジリエンスとQOLを同時に測定することとした。また、海外における先行研究においてレジリエンスとの関連が明らかにされている因子を再度検討し、調査項目に加えた。レジリエンスのとの関連因子として年齢や学歴、経済的状況などの個人要因が特定されているが、これらは介入により変化を促すことが難しい。レジリエンス促進の看護援助につながる因子を明らかにするため調査項目を精査している。
    本研究に先行して、レジリエンスを回復過程と捉え術後乳がん患者のレジリエンスの様相を縦断的に調査し質的に分析した研究を実施していたが、未発表であったため発表した。この研究結果は、本研究の縦断的調査の意義を裏付けるものである。

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  • 妊娠期における子ども虐待ハイリスク要因アセスメントの実態調査

    2019.04 - 2020.03

    公益財団法人 橋本財団  研究助成 

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    Authorship:Principal investigator 

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Other research activities

  • 助産学OSCE評価者

    2024.02

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    助産学OSCE評価者養成講習受講済

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  • CLoCMiPレベルⅢ(アドバンス助産師)認証

    2015.12

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  • 岡山性感染症研究会

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  • 助産師マルシェ

    2024.08

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  • 岡山大学公開講座

    2023.08

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  • 全国助産師教育協議会ファーストステージ研修

    2022

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    助産論,助産師教育方法論修了

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  • 岡山県看護協会 まちの保健室

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Class subject in charge

  • Midwifery Practice II (2025academic year) Prophase  - その他

  • Midwifery Practice I (2025academic year) Other  - その他

  • Seminar in Perinatal Health Assessment & PracticeⅠ (2025academic year) Prophase  - 月1

  • Seminar in Perinatal Health Assessment & PracticeⅡ (2025academic year) Year-round  - [前期]月2, [後期]木1

  • Seminar in Perinatal Health Assessment & PracticeⅢ (2025academic year) Late  - 木2

  • Perinatal Health Assessment & Practice I (2025academic year) Prophase  - 火1

  • Perinatal Health Assessment & Practice II (2025academic year) Year-round  - [前期]火2, [後期]火1

  • Perinatal Health Assessment & Practice III (2025academic year) Late  - 火2

  • Graduation Thesis in Nursing Ⅰ (2025academic year) 3rd and 4th semester  - 金5~6

  • Graduation Thesis in Nursing II (2025academic year) 1st-4th semester  - その他

  • Regional Mother and Child Health Exercises (2025academic year) Late  - 水2

  • Geographical mother and child health specialties (2025academic year) Late  - 水1

  • Maternal Health Nursing I (2025academic year) 1st semester  - 金5~6

  • Maternal Health Nursing II (2025academic year) Second semester  - 金5~6

  • Clinical Nursing Practice in Perinatal Care (2025academic year) Other  - その他

  • Synthesis Practice of Nursing II (2025academic year) 2nd and 3rd semester  - その他

  • Midwifery Practice II (2024academic year) Prophase  - その他

  • Midwifery Practice I (2024academic year) Other  - その他

  • Maternal Health Nursing I (2024academic year) 1st semester  - 木7~8

  • Maternal Health Nursing II (2024academic year) Second semester  - 金7~8

  • Clinical Nursing Practice in Perinatal Care (2024academic year) Other  - その他

  • Mystery of life birth (2024academic year) Second semester  - 金5~6

  • Nursing Management Practice (2024academic year) Summer concentration  - その他

  • Exercise of Team Medical Activities (2023academic year) 1st and 2nd semester  - その他

  • Midwifery Practice II (2023academic year) Prophase  - その他

  • Midwifery Practice I (2023academic year) Other  - その他

  • Graduation Thesis in Nursing (2023academic year) 1st-4th semester  - その他

  • Graduation Thesis in Nursing Ⅰ (2023academic year) 3rd and 4th semester  - 金5~6

  • Maternal Health Nursing II (2023academic year) Second semester  - 金7~8

  • Clinical Nursing Practice in Perinatal Care (2023academic year) Other  - その他

  • Maternal Health Nursing I (2023academic year) 1st semester  - 木7~8

  • Mystery of life birth (2023academic year) Second semester  - 金5~6

  • Synthesis Practice of Nursing (2023academic year) 2-4 semesters  - その他

  • Midwifery Practice I (2022academic year) Other  - その他

  • Graduation Thesis in Nursing (2022academic year) 1st-4th semester  - その他

  • Maternal Health Nursing II (2022academic year) Second semester  - 金6~7

  • Clinical Nursing Practice in Perinatal Care (2022academic year) Other  - その他

  • Maternal Health Nursing I (2022academic year) 1st semester  - 木7~8

  • Synthesis Practice of Nursing (2022academic year) 2-4 semesters  - その他

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