In order to clarify the causes of dry skin and related lifestyle factors in community-dwelling elderly women, a self-administered questionnaire was conducted in women aged 65 or more, and the water content of their stratum corneum was determined. The items of the questionnaire included basic physical attributes (age and history of illness), bathing habits (frequency of bathing, frequency of soap use, kinds of soap, method of body washing, products used for body washing, temperature of hot water, etc.), interest in skin care, presence or absence of dryness and itching of the skin and the affected sites, usage of moisturizers and the sites of application, and experience of obtaining information on prevention of dry skin (media used for obtaining information, and the content). The mean water content of the stratum corneum in the below-knee region was significantly lower than that in the forearm, with a value of 9.4±4.3μS and 16.1±7.8μS, respectively (p<0.001). Some women had bathing habits that encourage dry skin. Women aged 75 or older had recognized fewer kinds of soap compared with women aged 65 to 74 (p<0.05), and the dry skin group tended to rub their body more strongly during bathing than the non-dry skin group (p<0.05). The percentage of women who had obtained information on prevention of dry skin was 35.4% and the percentage of those who had obtained information on dry skin related to bathing was 3.1%. Although dry skin is markedly observed during the winter, it is also observed during the summer, and thus older people frequently experience dry skin regardless of season. Since older people have few opportunities to obtain knowledge of dry skin prevention, further information should be provided to help them take preventive action, such as review of bathing habits for dry skin.
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