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[A prospective comparison of day care and freely chosen occupational therapy for elderly patients with dementia].

Since the introduction of long-term care insurance, day care services have become popular throughout Japan and many kinds of behavioral approaches have been used. Although there have been many reports on the non-pharmacological effects on cognitive function, case control studies to evaluate the effect of day care services are insufficient Furthermore, no study has compared the advantages of different behavioral therapies for elderly subjects with loss of cognitive function. To clarify these issues, we compared the changes in activities of daily living, cognitive function and vitality/depression among 78 subjects receiving different day care services. Community dwelling subjects using day care (day care group: n = 29, 80+/-7.3 years old) showed an improvement in abnormal behavior (DBD scale; before 8.5+/-2.1, after 3.2+/-1.3, p<0.05). Vitality and volition measured by the Vitality Index were significantly preserved in the day care group compared with community dwelling subjects without day care services (n = 11, 78.6+/-9.4 y.o.). Comparing the effect of three different behavioral therapies (physical fitness, cooking and gardening), there was no difference in changes in cognitive function or in other comprehensive measurements among the groups. On the other hand, different responses to various therapies were observed among subjects. To determine the advantage of various non-pharmacological therapies for dementia, geriatricians need to perform prospective case-control studies with a large number of subjects, using comprehensive geriatric assessment as the art of a geriatrician.