[A study on the availability of subjective health indices for the aged focus on Japanese and Chinese studies].

With the follow on availability of indices for studies on subjective health centered in Japan and China, this paper reviews previous studies from the following perspectives: 1) reliability; 2) validity; 3) practicality. The aims was to determine the status of research, and future subjects for exploration. The following four conclusions were needed subjective health: 1) With regard to measurement methods an "even number balanced scale" which does not include middle points of choices such as "average" or "cannot tell which is better" is more reliable than an "odd number balanced scale" which includes middle points. "even number balanced scale" may be unbalanced in distribution.; 2) Criteria for a validity of a although an subjective health are highly in convergent what health validity for illness and prediction of life expectancy; 3) For subjective health, psychological and mental health indices, for example for the subjective for the subjective sense of happiness and the degree of satisfaction with one's life, are convergent both in Japan and China, but what a closer linkage with social relationships in Japan and with family relationships assessment in China.; 4) Both Japan and China pride evidence of the practicality of subjective health in health evaluation.