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Analysis of high-incidence area of diabetic patients.

Akagawa E; Nakayama S
Proceedings of the VII International Congress of Rural Medicine, September 17-21, Salt Lake City, Utah. International Association of Agricultural Medicine, 1978 Sep; :127-131
The results of a study of a rural area with a high incidence of diabetic patients were presented. A total of 168 cases, 98 males, of diabetes mellitus were diagnosed among the inhabitants of the Nagato area of Yamaguchi Prefecture, Japan in 1976. This corresponded to an incidence rate of 0.30 percent. The Nagato district was a rural area where most of the inhabitants made a living by farming or fishing. This was a substantial increase over the 64 cases, incidence 0.12 percent, diagnosed in 1971. The highest incidence of cases, 30.4 percent, occurred in individuals 50 to 59 years old. The highest frequency of severe cases occurred in subjects 20 to 29 years old, despite the fact that the overall incidence of cases in this age group was only 3 percent. Approximately 91 percent of the mild cases were successfully controlled. Control of the severe cases was classified as fair to good in 81.8 percent of the total. Controlling diabetes was easiest in subjects 30 to 59 years old. Control consisted of diet therapy in 56 percent of the cases, oral therapy in 31.5 percent of the cases, and insulin injection in 12.5 percent of the cases. Insulin injections were used primarily in the 20 to 29 year old patients. Hypertension was the most frequent complication, followed by retinopathy, neuropathy, and renopathy in that order. Renopathy, retinopathy, and gangrene were seen most frequently in poorly controlled cases and cases classified as severe. Mean caloric intake of the residents of Nagato and Yamaguchi Prefecture both increased by about 300 calories between 1971 and 1976. Yamaguchi Prefecture had a lower incidence rate of diabetes than the Nagato area. The authors suggest that the increased incidence of diabetes in the Nagato residents may be more apparent than real. It may reflect improvements in medical facilities and more thorough diagnoses.
NIOSH-Grant; Grants-other; Disease-incidence; Metabolic-disorders; Medical-treatment; Age-factors; Agricultural-workers; Blood-pressure; Energy-metabolism; Clinical-diagnosis
Prev Med & Environmental Hlth University of Iowa Inst/agric Med & Environ Hlth Iowa Oakdale, Iowa 52319
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Conference/Symposia Proceedings
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Other Occupational Concerns; Grants-other
Source Name
Proceedings of the VII International Congress of Rural Medicine, September 17-21, Salt Lake City, Utah
Performing Organization
University of Iowa, Iowa City, Iowa
Page last reviewed: September 2, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division