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補足品はHCAHPS反応率を低下させるが,反応率はHCAHPSスコアに影響しない:ランダム化実験

Megan K Beckett¹, Katrin Hambarsoomian¹, Julie Brown¹

¹RAND, Santa Monica, CA.

|August 22, 2025

まとめ

より長い調査は,特に混合モードの調査では,患者の応答率 (RRs) を低下させた. しかし,これらの低いRRは,病院のHCAHPSスコアに影響を与えず,調査の長さが検討に値するトレードオフであることを示唆しています.

科学分野:

医療サービス研究
患者体験の測定

背景:

より長い調査は,より低い応答率 (RRs) と関連しています.
以前の研究では,病院と患者のレベルでのRRとHCAHPSのスコアとの関連が混じっていることが示されました.
HCAHPSスコアに対する病院のRRの影響に関する実験的証拠は不足しています.

研究の目的:

調査の長さ (32項目対59項目) が,異なる調査モードでRRに与える影響を推定する.
調査の長さに起因するRRの変化がHCAHPSスコアに影響するかどうかを評価する.

主な方法:

米国51の病院で10,099人の成人を対象としたランダム化制御試験です.
患者は32件または59件でメールのみまたは混合モード (MM) の調査に割り当てられました.
リグレッションモデルでは,患者の特徴をコントロールしながら,調査の長さとモードがRRとHCAHPSスコアに与える影響を分析した.

主要な成果:

ミックスモードの調査は,32項目のバージョンのメールのみの調査よりも高いRRをもたらしました.
59項目の調査は,32項目の調査と比較して,メールのみとMMモードの両方でRRを大幅に削減しました.
試験期間が長くなったため,RRの減少は標準的に調整されたHCAHPSスコアを変化させなかった.

結論:

調査期間が長くなり,特にMM調査の電話でのフォローアップにより,回答率が低下します.
病院やベンダーは,追加調査項目の利点と,潜在的なRRの減少と,MMのRRの利点を考慮する必要があります.
病院内の応答率の低下は,標準調整されたHCAHPSスコアに影響を与えない.

キーワード:

健康調査研究患者調査ランダム化試験調査調査

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