新生児の短期的な環境熱曝露と低いAPGARスコア:ブラジルのサンパウロ州での時間層のクロスオーバー分析 (2013年−2019年)
Michelle Del Carretto1, Audrey Godin1, Danielson Neves2
1Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London, United Kingdom.
PLOS global public health
|September 5, 2025
まとめ
新生児のAPGARスコアが低いリスクが高まります. このリスクは,教育程度が低く,特定の人種/民族の背景を持つ母親ではより高く,出産中に熱の軽減の必要性を強調しています.
科学分野:
- 環境疫学
- 生後保健
- 公衆衛生
背景:
- 高温の環境は 出産の悪影響と関連しています
- 熱が新生児の健康に及ぼす影響に関する研究は限られている.
- 新生児の健康は 長期的な健康に不可欠です
研究 の 目的:
- 5分間のAPGARスコアに対する環境熱の短期的な影響を評価する.
- 低リスクの新生児の健康に 熱の影響を調べるため
- 熱にさらされるリスクが高い脆弱な集団を特定する.
主な方法:
- 分散ラグの非線形モデルによるケースクロスオーバー設計.
- ブラジルの生産情報システム (2013年−2019年) のデータを使用した.
- 生まれた日の平均気温 (ERA5-Land) と,混同要因を調整した.
主要な成果:
- 出産前0~1日間の高温 (95パーセント) に曝露すると,APGARスコアが低い確率 (≤7) が8%増加します.
- 12年未満の教育を受けた母親から生まれた乳児と,ブラウン/パルダとして識別される乳児ではリスクが高いことが観察されました.
- アソシエーションは主に同じ日の被曝によって引き起こされ,APGARスコアが適度に低い新生児が影響を受けた (6-7).
結論:
- 低リスクの出産では急激な環境熱の曝露が 新生児の健康に直接的なリスクをもたらします
- 母親の教育水準が低い人や 特定の人種/民族の背景を持つ人も含め 脆弱なサブグループが 危険にさらされています
- 新生児を保護するために,出産の近くでの熱緩和戦略は正当化されています.
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