Epidemiology and Health

Instruction for Authors: Editorial department; Korean J Epidemiol. 1979;1(1):126-126.

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Public affairs reporting: Korean Society of Epidemiology; Korean J Epidemiol. 1979;1(1):124-125.

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Board and staff listing: Korean Society of Epidemiology; Korean J Epidemiol. 1979;1(1):123-123.

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List of membership: Korean Society of Epidemiology; Korean J Epidemiol. 1979;1(1):121-123.

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Proceedings of the workshop on epidemiology curriculum development: Editorial department; Korean J Epidemiol. 1979;1(1):77-120.

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Articles of association: Korean Society of Epidemiology; Korean J Epidemiol. 1979;1(1):76-76.

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Hypertensive diseases among rural adults: Joung Soon Kim; Korean J Epidemiol. 1979;1(1):69-75.

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This study was carried out in 1976 on rural adult population older than 15 years. The study population was randomly sampled by village unit, in which 9.2% of the total households and 9.3% of the total population was included. The population studied consisted of 663 males and 813 females comprising 45% of the population sampled. Following the individual interview by household visit, each individual was examined by medical doctor at the temporary local clinic furnished with simple laboratory tests. Some sophisticated laboratory tests and cases who needed further diagnostic study were refered to hospitals. Criteria for hypertension and hypertensive heart disease were based on WHO criteria and U.S. Health Survey criteria. Blood pressure was measured twice for each individual, the first by a trained nurse and the second by examining doctor, and averaged. Measurements of height and weight to compute relative body weight were done by trained nurses at the tield. The result s obtained are as following： 1. The mean systolic blood pressure was 127±8.4 mmHg for males and 123.1±17.5 mrmHg for females, and it increased with advancing ages ; for example the mean systolic blood pressure for 15-19 years was 120±11.4 mmHg compared with 140.3±25.3 mmHg for the group older than 70 years in males. The increase of the mean blood pressure was the most abrupt at age 50 years . 2. The mean diastolic blood pressure was 82.4±11.7 mmHg for males and 80.7±11.4 mmHg for females with slow and gradual increase in accordance with the advancing ages. 3. The prevalences of definite and borderline hypertension were 7.7% and 9.5% for males whereas they were 6.5% and 8.1% for females respectively. As was in the case of mean systolic blood pressure, the prevalence of definite hypertension showed abrupt increase at age 50 years for both sexes. 4. The prevalence of hypertensive heart disease among the study population was 2.1%, the proportion of hypertensive heart disease was 3.9% and 25.0% among borderline hypertensives and definite hypertension patients respectively. 5. Frequency and distribution of other diseases except the hypertensive heart disease did not show much difference between normotensives and hypertensives. 6. Among suspected contributing factors to the hypertension analysed, the association of hypertension with relative body weight appeared to be the most strong. Also when age was controlled to 45 years and the above, alcohol drinkers had significantly higher risk of hypertension than non-drinkers. 7. The multiple correlation coefficient on relationship between the variation of blood pressure and some selected variables, i.e., age, socioeconomic status, relative body weight, and degree of cigarette smoking, was 0.305 being able to explain the relationship only in 9.3% for systolic blood pressure and 6% for diastolic blood pressure by these tour variables.; Summary

A study of hypertension on medium-sized city population: Joo Young Kim, Joung Soon Kim, Young Woo Lee; Korean J Epidemiol. 1979;1(1):55-67.

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This study was conducted on an apartment resident older than 15 years of age inhabiting in a medium-sized city of Korea. The objective of the study was to measure prevalence hypertension and hypertensive heart disease, and to identify contributing factors relevant to the occurrence of hypertension. The apartment selected for the study consisted of 1,200 households with 3,333 residents oder then 15 years. The socioeconomic status is rather lower than the Korean average; the apartment was built aided by the Korean Government for this people who lost their houses and shelters around the railroad station-a slum-at the explosion accident in 1977. The population composition by age and sex was not much different from the Korean average though with much higher proportion of illiterates. Blood pressure was measured twice in spaced time and information necessary to identify risk factors were collected through household interview by trained nurses. The definitions of definite and borderline hypertension were based on WHO criteria, and the criteria for hypertensive heart disease was adopted from the US National Health Survey. Seventy percent of the eligible residents were checked for blood pressure and interviewed individually. Electrocardiogram and indirect chest x-ray, however, were taken only on about 40% of the eligible. The resulted summarize as following； 1. Mean systolic and diastolic blood pressures were higher among males than females with gradual increase as age advances for both sexes. 2. The prevalence of definite hypertension was 7.5% for males 8.0% for females, which also showed an increase with age；the prevalence of borderline hypertension was 16.0% for males and 7.1% for females. 3. The percent of hypertensive heart disease among the patients with definite hypertension was 35.8% for males and 41.7% for females. Among borderline hypertensive patients 5.9% only females had hypertensive heart disease. An estimated prevalence of hypertensive heart disease was 2.6% for males and 4.1% for females. 4. Relative body weight and family history of hypertension were most strongly associated with hypertension ; relative salt intake, cigarette smoking and alcohol drinking did not show definite association. 5. Among patients with definite hypertension 63.2% were diagnosed as hypertension by medical doctors of whom only 38.5% have been on treatment. Thirty nine patients out of 78 treated stayed in definite hypertension, 18 patients became borderline hypertension, and only 6 patients to the level of normotension.; Summary

Comparative study of mortality pattern between Korea and Japan: Il Soon Kim; Korean J Epidemiol. 1979;1(1):47-54.

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Domain and education of epidemiology: Korean Society of Epidemiology; Korean J Epidemiol. 1979;1(1):5-45.

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Contents and a congratulatory address for the first issue: Editorial department; Korean J Epidemiol. 1979;1(1):1-4.

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