2002 年 29 巻 4 号 p. 768-771
This study measured the QOL in 140 healthy elderly who consulted the Japanese Red Cross Kumamoto Health Care Center for a medical check-up in March 1994 using QUIK. QUIK is the generic screening test for the QOL, which covered four domains including physical functioning (20 questions), emotional adjustment (10 questions), social relationships (10 questions), and attitudes toward life (10 questions), totaling 50 questions.
The mean and standard deviation of the total score was 5.1 ± 5.4, and those of each domain were 2.7 ± 2.7 for physical functioning, 1.0 ± 1.5 for emotional adjustment, 0.7 ± 1.1 for social relationships, and 0.6 ± 1.2 for attitudes toward life, respectively.
According to the six-tiered rating scale, the QUIK total scores were as follows; excellent 15%, good 35%, fair 36%, poor 11%, very poor 2% and grossly impaired 0%. The results of the mean and standard deviation and the distribution by a six-tiered rating scale of the total score were significantly better than those in patient controls.
The internal consistency in terms of the QUIK total score was α =0.86 (0.71 for physical functioning, 0.61 for emotional adjustment, 0.61 for social relationships and 0.61 for attitudes toward life) . If the cut-off points of total score were set between 9 and 10, the sensitivity was 0.65, the specificity was 0.65 for age, the sensitivity was 1.00, the specificity was 0.29 for satisfaction, and sensitivity was 0.85, the specificity was 0.48 for a refreshed feeling. And there was a very tight reciprocal correlation among the four domains, except for the relation between physical functioning and social relationships.
From this study, it should be concluded that QUIK is reliable, valid and useful for health evaluation as a generic screening test for the QOL in the elderly despite some clinical limitations in its use.
