青少年の大麻使用と精神病,双極性,うつ病,不安障害のリスク
Kelly C Young-Wolff1,2, Catherine A Cortez1, Stacey E Alexeeff1
1Division of Research, Kaiser Permanente Northern California, Pleasanton.
JAMA health forum
|February 20, 2026
まとめ
大麻の青少年の使用は,精神病,双極性,うつ病,および不安障害を発症するリスクを大幅に高めます. 早期介入と保護政策は,大麻のアクセシビリティが増加していることから極めて重要です.
科学分野:
- 青春期精神科の精神科は青春期精神科である.
- メンタルヘルスに関する研究.
- カンナビス使用流行病学
背景:
- 大麻のアクセシビリティと社会的受け入れの増大は,若者の精神的健康に関する懸念を高めています.
- 青少年における大麻使用と精神疾患の症状を関連付ける事に関する以前の研究は行われてきたが,診断された疾患に関する大規模な縦断研究は限られている.
研究 の 目的:
- 青少年の大麻使用と精神病,双極性,うつ病,不安障害を発症するリスクとの関連を調査する.
- これらのリスクを青春期および若年期にわたって評価する.
主な方法:
- 2016年から2023年にかけて,大麻使用についてスクリーニングされた青少年 (13-17歳) のコホート研究.
- 25歳までのフォローアップ,診断のための電子医療記録 (ICDコード) を利用する.
- コックス比例危険性回帰を共変数で調整した.
主要な成果:
- 青少年における大麻使用は,精神病 (AHR, 2.19),双極性障害 (AHR, 2.01),うつ病 (AHR, 1.34) および不安障害 (AHR, 1.24) のリスクの高さに関連していた.
- うつ病や不安障害の関連性は,年齢とともに減少した.
- 前述の精神疾患を考慮した結果も引き続き有意であった.
結論:
- 青少年における大麻使用は,精神疾患,特に精神病および双極性障害の発生リスクが高いと関連しています.
- 研究結果は,リスクを軽減するための臨床的,教育的,政策的介入の必要性を支持しています.
- この研究は,大麻の合法化を拡大する文脈で関連しています.
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