補足栄養支援プログラム（SNAP）の政策と食料不安
Sriya Potluri1, Atheendar S Venkataramani2,3, Scott A Lorch2,4
1Perelman School of Medicine, University of Pennsylvania, Philadelphia.
JAMA health forum
|December 12, 2025
まとめ
補足栄養支援プログラム（SNAP）へのアクセスを改善する州の政策は、食料不安（FI）の軽減と関連している。SNAP参加の簡素化は、FI率の上昇と闘うのに役立つ可能性がある。
背景:
- 食料不安（FI）は米国における公衆衛生上の懸念が高まっており、健康状態の悪化と関連している。; 補足栄養支援プログラム（SNAP）は、FIを軽減することを目的とした主要な連邦プログラムである。; SNAP政策、特に資格と管理負担に関する州レベルのばらつきは、プログラムへの参加、ひいてはFI率に影響を与える可能性がある。
研究 の 目的:
- 米国における州レベルのSNAP政策の変更と郡レベルのFI率との関連を調査すること。; SNAP政策の採用が食料不安レベルに与える影響を定量化すること。
主な方法:
- 2009年から2019年までの郡レベルのFIデータ（Feeding America Map the Meal Gap）、州SNAP政策データ（USDA）、および米国国勢調査局の人口統計データを利用した繰り返し横断研究デザイン。; 州の政策の寛大さを表す年次SNAP政策採用指数（0.1〜10）の開発。; SNAP政策指数、SNAP参加率、および郡FI率の関係を評価するために、関連する共変量と固定効果を制御しながら、因果推論手法であるG計算を適用した。
主要な成果:
- SNAP政策指数の1ポイントの上昇は、州のSNAP参加率の0.7パーセントポイントの上昇と、郡のFI率の0.1パーセントポイントの低下に関連していた（P < .05）。; 3134米国の郡の分析により、支援的なSNAP政策とFIとの間に有意な逆相関が示された。; 2019年には、最も寛大な州の政策シナリオと比較して、最も寛大でないシナリオでは、推定650万人の人々がFIを経験しなかった。
結論:
- 参加を強化する州SNAP政策の採用は、郡レベルの食料不安の軽減と関連している。; SNAPアクセスへの障壁を下げることを目的とした政策は、FI率の上昇を緩和する戦略として可能性を示している。; この調査結果は、国の食料不安問題に対処する上で、州レベルの政策介入の重要性を強調している。
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