ドイツにおける大麻合法化による健康への純影響の量的な予測

Afschin Gandjour¹

¹Frankfurt School of Finance & Management, Frankfurt, Germany.

PloS one

|September 2, 2025

まとめ

ドイツ

科学分野:

公衆衛生
健康経済
大麻の研究

背景:

娯楽用大麻はドイツで2024年に合法化され,闇市場の害を軽減し,消費を規制することを目指しています.
汚染物質によるリスクを軽減し,健康への影響を制御することを目指しています.
この研究は,この政策の変化による健康への純効果を定量化しています.

研究の目的:

ドイツにおける大麻合法化による健康への影響を定量的に評価する.
汚染の減少による害の軽減と消費リスクの増大のバランスをとる
大麻使用障害 (CUD) と汚染による品質調整生命年 (QALY) の損失を予測する.

主な方法:

健康への影響を推定するために,定量的な予測モデルが使用されました.
モデルでは大麻の消費と関連する健康リスクの増加を予測した.
計算には,CUDによるQALY損失,依存,汚染被曝が含まれていた.

主要な成果:

合法化により,40万から80万人の新しい成人の使用者が生まれ,約2,300人の重篤な精神疾患が引き起こされる可能性があります.
CUDによるQALYの損失は,汚染の減少による利益の19倍になると予測されています.
消費率はQALYの純結果に大きく影響し,1%の増加は人口のレベルでの害を引き起こす可能性があります.

結論:

ドイツでの大麻合法化は,期待された健康上の利益をもたらさないかもしれない.
CUDの害は汚染の恩恵を上回るので増加した消費は公衆衛生に重大な負担をもたらす可能性があります
有効な規制と公衆衛生の介入は有害な影響を軽減しブラックマーケットの復活を防ぐために不可欠です

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