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Comparative Study of Essential Hypertension in Rural and Urban Populations - From the Viewpoint of Hemodynamic Indices and Blood Chemistry.

Authors
Noda-K; Seki-H; Kanayama-M; Fudamasu-F; Okada-Y; Yagi-K; Fujino-F; Miura-Y
Source
Proceedings of the VII International Congress of Rural Medicine, Salt Lake City, Utah, September 17-21, 1978, International Association of Agricultural Medicine 1978 Sep:118-121
Link
NIOSHTIC No.
00184048
Abstract
A study of the pathophysiology of essential hypertension in rural and urban populations in Japan was conducted. The study group consisted of 20 normotensive females and 10 hypertensive females from Kanagawa Prefecture, a rural area in southern Japan. They were matched to 20 normotensive and 10 hypertensive females from the Tokyo metropolitan area. The age range of the subjects in both groups was 20 to 59 years. Electrocardiograms (ECGs), phonocardiograms, and digital plethysmograms were recorded. Ventricular ejection times were measured. Hemoglobin and serum albumin, total cholesterol, and triglycerides were determined. Prognostic indices for arteriosclerosis (PAI) were computed from the blood chemistry parameters. Heart rates determined from the ECGs were within the normal range for all subjects, but appeared to be higher in the rural than in the urban subjects. Left ventricular ejection times showed age related decreases in the urban subjects and in the hypertensive rural subjects. The tension time index, a parameter related to myocardial oxygen consumption, was higher in hypertensive urban and rural subjects and in younger normotensive subjects of both groups. Peripheral resistance was highest in older rural subjects with hypertension. The PAI was higher in older subjects with hypertension in both groups. The authors conclude that hypertensive individuals living in rural areas are at risk of developing hypertensive heart failure. Urban residents with hypertension are at risk of developing coronary disease.
Keywords
NIOSH-Grant; Grants-other; Agricultural-workers; Environmental-factors; Blood-pressure; Cardiovascular-function; Physiological-measurements; Risk-analysis; Risk-factors;
Contact
Prev Med & Environmental Hlth University of Iowa Inst/agric Med & Environ Hlth Iowa Oakdale, Iowa 52319
Publication Date
19780917
Document Type
Conference/Symposia Proceedings;
Funding Amount
24225.00
Funding Type
Grant;
Fiscal Year
1978
NTIS Accession No.
NTIS Price
Identifying No.
Grant-Number-R13-OH-00694
Priority Area
Other Occupational Concerns; Grants-other;
Source Name
Proceedings of the VII International Congress of Rural Medicine, Salt Lake City, Utah, September 17-21, 1978, International Association of Agricultural Medicine
State
UT; IA;
Performing Organization
University of Iowa, Iowa City, Iowa
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