介護老人保健施設入居者のADL評価におけるSunnaas Index of ADLの信頼性と妥当性

Reliability and validity of the Sunnaas Index of ADL in assessing ADL's among residents in a geriatric health services facility

要旨：介護老人保健施設(以下，老健)入居者93名を対象にSunnaas Index of ADL(以下，SIA)の信頼性と妥当性を検討した．信頼性は2名の評価者による評価者間信頼性，初回検査と再検査結果による再検査信頼性を級内相関係数(interclass correlation coefficient；ICC)により検討し，妥当性は基準関連妥当性としてSIAとBarthel Index(以下，BI)の関係をSpearman順位相関係数により検討した．結果，評価者間及び検査一再検査問の高ICC値にて高い信頼性が示され，SIA総合得点は，BI総合得点との間に有意な強い相関関係を示した．以上から，老健入所者のADL評価においてSIAは，十分に信頼性と妥当性のある評価表であると示唆された．

　The reliability and validity of Sunnaas Index of ADL (SIA) were investigated in 93 residents of a geriatric health services facility for the elderly. Reliability was assessed by determining an interclass correlation coefficient (ICC) for inter-assessor reliability between two assessors and test-retest reliability by conducting two tests 12 weeks apart. With regard to validity, the criterion-related validity of the relationship between SIA and Barthel Index (BI) was assessed using Spearman rank correlation coefficients. The results showed a high ICC value for inter-assessor reliability and test-retest reliability, thus confirming a high degree of reliability. In addition, there was a significant correlation between total SIA score and total BI score. The above findings suggest that SIA is a reliable and valid tool for assessing ADL of geriatric health services facility residents.