岡山医学会 Acta Medica Okayama 0030-1558 111 9-12 2000 老人医療受診内容に影響を及ぼす要因 185 192 EN Kaori Takahara Insured person and their family members of 70 years old or more enrolled in the best health insurance scheme were surveyed. The best insurance scheme means that scheme provides the insured and their family with effective health and welfare services and it is in excellent financial condition. The subjects were classified by status of receiving medical care services such as outpatient and inpatient care. The survey was conducted to determine factors related to motivations of receiving medical care services by an intreviewing method of health nurses. The results are as follows. 1. Hobbies and a happy family life inhibit the insured from receiving medical care services. However, patients who have hobbies or a family prefer inpatient care to outpatient care. 2. The results of the survey demonstrated that aging, dementia, decline of activities of daily living, housing, life style with family, hobbies and cultural exchange in the community are all related to motivation towards inpatient care. 3. The family plays an important role in home care services. No potential conflict of interest relevant to this article was reported.

岡山医学会 Acta Medica Okayama 0030-1558 111 9-12 2000 大気汚染による健康影響―モニター方式による近接二地区間の比較― 173 184 EN Masanori Goto There have been many studies on the relationship between prevalence and incidence of respiratory disease and air pollution. This study was conducted by organized efforts of a regional medical association. Every member of the association reported the numbers of patients with respiratory diseases such as asthmatic bronchitis, chronic bronchitis, and bronchial asthma, and the total number of patients who consulted him/her. The former report was conducted in K city, and this study was of the Y area. These two areas have similar geographical locations and condition of air pollution. The study in K city was conducted between 1973 and 1982, and was between 1981 and 1995 in the Y area. As for air pollution, concentration of SO(x), NO(2), O(x) and SPM surveyed by a national network system was used. The results are as follows : 1. Big differences in the situation of air pollution and correlations between prevalences of respiratory diseases and indicators of air pollution were observed. However, multiple regression analysis of these indicators of prevalence and air pollution showed common evidence in support of the effectiveness of this and other studies. This means that a monitoring system is useful and informative in evaluating the influence of air pollution on the health conditions of people. 2. NO(2), O(x) and SPM must be paid more attention, because SO(x) was decreased around the end of 1970s among the indicators of air pollution. 3. CB is more attractive in an aging society and in areas that have been more highly air polluted than others. No potential conflict of interest relevant to this article was reported.