患者尊厳測定尺度日本版（J-PDS）短縮版の開発

Development of the short version of the Japanese Patient Dignity Scale

　本研究の目的は、入院患者の尊厳を測定する患者尊厳測定尺度日本版（J-PDS）の短縮版を開発し、その信頼性・妥当性を検討することである。尊厳への期待について5因子21項目、満足度について3因子21項目からなるJ-PDSについて、一部修正を行った修正版を用いて調査を行った。全国20病院の入院患者378名から回答を得た（回収率：48.0％、有効回答率：100％）。修正版とオリジナル版との整合性の確認の後、因子負荷量を上げながら項目を絞り込んだ。その結果、尊厳への期待、満足度ともに3因子12項目の短縮版を得た。Cronbach's α係数は、期待の程度では0.89、満足度は0.90であった。モデル適合度についてはGFIがそれぞれ0.826、0.898とやや不十分であった。一方、ローゼンバーグの自尊感情尺度と期待の程度の一部の因子の間と満足度には弱いながらも有意な相関が認められ、J-PDS短縮版はある程度の信頼性・妥当性を備えたものであることが確認された。

　This study aimed to develop a short version of the Japanese Patient Dignity Measurement Scale (J-PDS) that measures the dignity of hospitalized patients and examine its reliability and validity. We conducted a survey using a modified version of the J-PDS, which consisted of 21 item with 5 factors for expectation regarding dignity and 21 items with 3 factors for Satisfaction with dignity. Responses were obtained from 378 hospitalized patients in 20 hospitals across Japan (response rate: 48.0％, valid rate: 100％). After confirming the consistency between the revised and the original versions, we narrowed down the items while increasing of factor loading with exploratory factor analysis. Based on the results, we obtained a short version consisting of 12 items with 3 factors, for both expectation regarding dignity and satisfaction with dignity. Cronbach's α coefficients were 0.89 for expectation and 0.90 for satisfaction. Regarding model fitness, the GFIs were somewhat insuffcient, being 0.826 and 0.898 respectively. On the other hand, weak but significant correlation was found between Rosenberg's Self-esteem Scale and some factors of expectation and satisfaction. We confirmed that the J-PDS short version has some amount of reliability and validity.