Suffering調査票の開発

Development of Suffering Questionnaire

要旨

　本研究の目的は，がんに病む対象者の苦悩を測定する40項目の自記式質問紙「がん患者苦悩尺度」を洗練し，その信頼性と妥当性を検討することである．調査は2000年9～12月，167名を対象に行った．対象群の内訳は健康者群100名，がん対象群67名であった．健康者群の有効回答数は90名(90％)であった．がん対象群について，有効回答数は59名(88.1％)であった．なお，内的整合性，構成概念妥当性を検討するうえで，がん患者苦悩尺度の開発の際のデータの一部(N＝242)をあわせた301名の分析を行った．がん対象群について因子分析(主成分分析，Varimax回転)を行い，因子負荷量が0.4以下の項目等を吟味し，最終的に32項目に絞ったものをSuffering調査票とした．本測定用具の信頼性について，テスト―再テストの結果，r＝0.80(p＜0.01)で安定性が確認された(N＝28)．クロンバックのα係数は0.92であり，がん患者苦悩尺度に比べ内的整合性が高まった(N＝301)．基準関連妥当性について，SDSとの相関係数はr＝0.33(p＜0.05)であり，低い相関が認められた(N＝57)．MACにおけるFighting Spiritsとの相関係数はr＝－0.33(p＜0.05)で低い負の相関が認められ．Helpless/Hopelessとはr＝0.65(p＜0.01)で高い相関が認められた．

Abstract

　The purpose of this study was to refine the items contained in the cancer pain assessment scale and to develop a“Suffering Questionnaire”The survey was conducted among 167 subjects between September and December 2000. There were two subject groups：one consisted of 100 healthy individuals and the other of 67 cancer patients. Valid responses were obtained from 90 of the healthy subjects (31 males, 59 females) and 59 of the cancer patients (6 males, 53 females). To evaluate the internal consistency and construct validity, we analyzed301individuals (107 males, 194females) who met part one (N=242) of the data after the cancer pain assessment scale was developed. The average age of the 301 individuals was57years. We conducted a factor analysis of the cancer patient subject group (principal component analysis, varimax rotation), examined items with a factor loading of less than 0.4, and ultimately created a Suffering Questionnaire comprising32items. Stability was confirmed by the test-retest results of r=0.80 (p＜0.01, n=28). The Cronbach's alpha coefficient was0.92, indicating higher internal consistency than the cancer pain assessment scale. The correlation coefficient with the SDS was r= 0.33 (p＜0.05, n=57). The correlation coefficient with the MAC of Fighting Spirits was r=-0.33 (p＜0.05) and Helpless/Hopeless was r=0.67 (p＜0.01)