断片化された米国の医療システムにおける保險の動態
Ye Shen1,2, Benjamin D Sommers3,4, Laura A Hatfield5
1Interfaculty Initiative in Health Policy, Harvard University, Cambridge, Massachusetts.
JAMA
|September 24, 2025
まとめ
18歳になる頃には ほとんどのアメリカ人はメディケイドやCHIPに 接触し 保険がないことも多いのです 国の政策が子どもに大きく影響する
科学分野:
- 医療サービス研究
- 公衆衛生政策
- 小児の健康に関する結果
背景:
- アメリカの児童医療保険は 公的および私的な保険の複合体であり,州レベルの格差が大きい.
- メディケイド,CHIP,非保険など 子供の長期的保険経験を理解することは 保険の評価に不可欠です
- パンデミック前データは,発達する医療政策が子どもの健康保険に与える影響を評価する上で重要な基準となる.
研究 の 目的:
- 医療保険のダイナミクスを推定する. 特にメディケイドや児童医療保険プログラム (CHIP) への登録と, 幼児期における無保険期間.
- 保険のダイナミクスを,米国における安価な医療法 (ACA) 以後の政策状況と,パンデミック以前の状況の文脈で分析する.
- 子供の健康保険への将来のメディケイド政策変更の潜在的な影響を評価するためのベースラインを確立する.
主な方法:
- マイクロシミュレーションモデルでは 誕生から18歳までの10万人の シミュレーションされたアメリカの子供たちの 月額保険料を予測しました
- 2015年から2019年の全国データセットは,出生記録と調査データ (MEPS,SIPP) を統合しました.
- 家族の収入,保険履歴,状態,年齢などのダイナミックな予測は 月次シミュレーションで不確実性の間隔をブートストラップします.
主要な成果:
- 18歳までに 推定61%のアメリカ人がメディケイドやCHIPに加入し 42%が保険に加入していない
- 子どもの約26%は,子供時代を通して継続的な雇用に基づくまたは他の非公的保険を保持していました.
- メディケイド/CHIPで生まれた子どもは,拡大しない州で,拡大する州 (36%) と比べて,特に資格基準が制限されている州で,無保険率が高い (59%).
結論:
- 流行前の18歳までに,米国の子供のほぼ4分の3が公的補助保険を利用したり,無保険になったりしています.
- 子どもの保険不足の州レベルでの大きな変動は 州のメディケイド政策の重要な影響力を強調しています
- これらの発見は,子どもの健康保険へのアクセスと継続性を形成する際に,州別メディケイド政策の重要性を強調しています.
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