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J Epidemiol. 2000 Apr;10(1 Suppl):S33-8.

Age and gender differences in skin sensory threshold assessed by current perception in community-dwelling Japanese.

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Department of Epidemiology, National Institute for Longevity Sciences, Nagoya, Japan.


The purpose of this study was to investigate age and gender differences in current perception thresholds (CPT) in Japanese citizens. CPT values at frequencies of 2000, 250 and 5 Hz reflect different types of peripheral sensory nerve functions. Since there have been only a limited number of reports which investigated CPT values in community-dwelling people, little is known about variations with age and gender. The present study therefore concentrated on a large population of 1632 individuals (men; 818 mean age +/- standard deviation 59.4 +/- 10.9, women; 814, 59.4 +/- 11.1) in a Japanese community. Significant gender differences in CPT values at 250 and 5 Hz were observed. Multiple comparisons among 4 age groups (40s, 50s, 60s and 70s) showed age-related differences in CPT values at 2000 and 250 Hz in both genders. However, age and gender interactions with reference to CPT values appeared to be different between these latter two frequencies. At 5 Hz, only men showed age-related variations. These results indicated gender differences in fiber-specific aging changes.

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