ダウン症候群の罹患率とアウトカムに関する国家スクリーニングプログラムの影響
Cecilie Bryn Nordklev1,2, Denise Reis Costa3,4, Roy Miodini Nilsen5
1Fetal Medicine Centre, Oslo University Hospital, Oslo, Norway.
Acta obstetricia et gynecologica Scandinavica
|February 13, 2026
まとめ
ダウン症候群 (DS) の出産前のスクリーニングは,検出率と妊娠中絶を改善しました. しかし,DSの生児と死産の割合は安定しており,進歩にもかかわらず一貫した結果を示しています.
科学分野:
- 生殖器医学は,生殖器医学というものです.
- 遺伝学 遺伝学とは
- 公衆衛生は公衆衛生である.
背景:
- ダウン症候群 (DS) の出産前スクリーニングは,技術の進歩とともに進化してきました.
- 非侵襲的産前検査への移行は,スクリーニングの実践を変えました.
- この研究では,これらの変化がDS妊娠の結果に与える影響を評価しています.
研究 の 目的:
- ダウン症候群 (ダウン症候群) のための改善された産前スクリーニングが妊娠の結果に与える影響を評価する.
- DSにおける生産,死産,妊娠中絶 (TOP) の傾向を分析する.
- TOPに関する決定に影響を与える要因を特定する.
主な方法:
- ノルウェーの妊娠に関する人口ベースの登録調査 (19672021).
- 1999年以降のダウン症候群 (DS) 診断と妊娠中絶 (TOP) の分析.
- タイムトレンドとTOPとの人口統計的関連を評価するために使用されるロジスティック回帰モデル.
主要な成果:
- DS妊娠の発生率は0.165%から0.251%に増加した (1999-2021).
- 産前検出率は18%から70%に上昇し,TOPの割合は20%から55%に増加しました.
- DSにおける生産と死産の割合は安定したままであり,診断後のTOP比率は約80%であった.
結論:
- DS妊娠の産前検出と中絶が著しく増加しています.
- 進歩にもかかわらず,継続妊娠の割合とDSの生/死産の流行率は安定しています.
- 母親の特徴がTOPの決定に影響し,妊娠終了時の平均妊娠年齢が低下する.
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