精神医学53巻1号

2011年01月発行

研究と報告

日本語版Primary Care Evaluation of Mental Disorders Patient Health Questionnaire-9(PRIME-MD PHQ-9)の精神尺度としての有用性に関する検討

著者： 味村千津¹ 渡部芳徳¹ 堀越立² 上島国利³

所属機関： ¹ひもろぎ心のクリニック ²ほりこし心身クリニック ³国際医療福祉大学医療福祉学部

ページ範囲：P.15 - P.22

抄録

　日本語版PHQ-9の信頼性・妥当性を検討した。精神科医院外来通院中の患者471人にPHQ-9とHAMD-17構造化面接を施行し，一定間隔後追跡調査を行った。PHQ-9は2回の検査とも単因子構成で，負荷係数・分散ともに高値を示した。HAMD-17の因子構成は安定せず，負荷係数の小さな項目が多数みられた。PHQ-9とHAMD-17の得点間には強い相関が得られ，得点分布からPHQ-9のほうがうつの重症度をより詳細に反映していた。PHQ-9により対象を大うつ病群・その他のうつ病群・非うつ群に分けてHAMD-17の得点を一元配置分析したところ，この分類法にも信用性があることが明示された。Cronbachのα係数・再検査の級内相関係数ともに高値であった。PHQ-9はHAMD-17より有用性の高い評価尺度として臨床での活用が期待される。

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