日本では小児期逆境体験で高齢期死亡リスクなし~離別・未婚の男性でのみ強い関連、配偶者の存在が影響を修飾~

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2026-03-05 東京科学大学

東京科学大学の研究チームは、日本老年学的評価研究(JAGES)のデータを用い、小児期逆境体験(ACEs)と高齢期の死亡リスクとの関連を検証した。要介護認定を受けていない65歳以上の高齢者12,698人を6年間追跡した結果、全体および有配偶者ではACEsと死亡リスクの明確な関連は確認されなかった。一方、離別または未婚の男性では、ACEsを3つ以上経験した人の死亡リスクが、経験のない人と比べて約4倍(条件により約8倍)高いことが示された。女性では配偶者の有無にかかわらず同様の関連は見られなかった。これらの結果は、男性では配偶者の存在などの社会的支援が、小児期の逆境体験による健康への長期的影響を緩和している可能性を示唆している。本研究は、高齢期の健康格差の背景に幼少期の経験が関与する可能性と、特に配偶者を持たない男性に対する社会的支援の重要性を示す知見である。

日本では小児期逆境体験で高齢期死亡リスクなし~離別・未婚の男性でのみ強い関連、配偶者の存在が影響を修飾~
図1.小児期逆境体験(ACEs)と死亡リスク。男性では配偶者の存在がACEsの悪影響を緩和する。

<関連情報>

日本の高齢者における幼少期の有害体験と全死亡率:婚姻状況による修正6年間の前向きコホート研究 Adverse childhood experiences and all-cause mortality in older Japanese adults: a 6-year prospective cohort study, modified by marital status

Tomoki Kawahara, Yukako Tani, Katsunori Kondo, Takeo Fujiwara
Social Science & Medicine  Available online: 21 January 2026
DOI:https://doi.org/10.1016/j.socscimed.2026.119012

Highlights

  • ACEs showed no overall association with mortality in older Japanese adults.
  • Among men, divorced/unmarried with 3+ ACEs had markedly higher mortality.
  • Marriage appeared to buffer the ACE–mortality association in men.
  • Findings support targeted, trauma-informed support for older single men.

Abstract

Objectives

Adverse childhood experiences (ACEs) are known to be associated with morbidity and premature death, but the association between ACEs and mortality among older people is unknown in Japan, and whether marital status modifies the associations remains unclear.

Methods

We analyzed data from 12,698 older adults (65+ years) participating in the Japan Gerontological Evaluation Study (JAGES; response rate 70.3 %) in 2013 and were followed for 6 years. ACEs and marital status were assessed at baseline, and mortality was prospectively followed. Cox proportional hazards models were used to assess the association between ACEs and mortality, stratified by sex and marital status adjusted for covariates.

Results

1948 deaths occurred during the follow-up (Men: 1,238, Women: 710). We found no association between ACEs and mortality overall for both sexes. When stratified by marital status, among divorced/unmarried men, those having 3+ ACEs were 4.00 times more likely to die (95 % CI: 1.46–10.95), although there was no association between ACEs and mortality among married men. In contrast, among divorced/unmarried women, having ACEs showed a lower risk of mortality, and married women also showed no association between ACEs and mortality.

Discussion

ACEs were associated with mortality among divorced/unmarried older men, which is not true for married men and all women. Further research is warranted to elucidate the mechanism to prevent the adverse effect of ACEs on mortality among divorced/unmarried men and all women.

医療・健康
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