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Jong Myon Bae 10 Articles
Correlation Between Muscle Amounts and Grasp Power in the Elderly People, Jejudo.
Hojun Lee, Minsung Park, Yeoju Go, Yeong Ja Yang, Jong Myon Bae
Korean J Epidemiol. 2006;28(2):182-188.
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Abstract
OBJECTIVES
This study was conducted to examine the relationships between muscle mass and hand strength in elderly people.
METHODS
The study subjects were 659 volunteers aged older than 65 in Jejudo, south Korea. The anthropometric information such as weight, body mass index (BMI) and muscular mass was collected by the body composition analyzer. The hand strength was obtained by the digital grip dynamometer. The fasting blood sugar index called as potential diabetes mellitus (DM) was defined as the condition over 120 mg/dL of the blood sugar. The BMI was classified into under 23, 23-25 and over 25 to analyze the relationships of BMI and muscle mass, hand strength.
RESULTS
The factors affecting muscle mass were sex (p<0.001), age (p<0.001) and BMI (p<0.001). The factors affecting hand strength were sex (p<0.001), age (p<0.001) and BMI (p=0.003). And there was a weak association between muscle mass and hand strength after controlling with the affected factors (r2=0.15, p<0.001).
CONCLUSIONS
The hand strength is weekly correlated with the muscle mass. So we recommend to use digital grip dynamometer combining with other measurements for diagnosis the sarcopenia in epidemiologic study.
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An Epidemic Survey for Salmonellosis Occurred on a Baby's First Birthday Banquet in Jeju Island.
Sang Yeop Shin, Jung Yun Hong, Jong Myon Bae
Korean J Epidemiol. 2004;26(1):27-38.
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Abstract
OBJECTIVES
A field investigation was done to identify the level of epidemic and to evaluate the infection route of Salmonellosis occurred in a baby's first birthday banquet in Jeju Island.
METHODS
Among participants in the banquet given on a baby's first birthday, persons showing gastrointestinal symptoms were conducted by the structured questionnaire and stool culture. The symptomless persons were also surveyed by self-responded structured questionnaire. The causal relationship between food items and gastrointestinal symptoms was proved by odds ratio and Wilcoxon rank-sum test.
RESULTS
Salmonella london was identified in the stools of 12 subjects among 20 participants showing gastrointestinal symptoms, as well as in the boiled pork hock.
CONCLUSIONS
This outbreak event is thought to happen after participants took the boiled pork hock that contaminated with S almonella london during the storage process.
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Methods for Estimation of Nationwide Cancer Incidence from Population-based Cancer Registries .
Jong Myon Bae, Choong Won Lee, Duk Hee Lee, Yoon Ok Ahn
Korean J Epidemiol. 2002;24(1):1-6.
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Abstract
While there has not been a nationwide cancer incidence data yet, it is necessary to consider a preferable method for estimation of nationwide cancer incidence under the cancer registry system in Korea. Some papers and texts related to estimate a nationwide cancer incidence were searched and reviewed. It could be summarized into 5 major methods: (1) for having only mortality data for all cancers, (2) of using major demographic factors, (3) of using nationwide mortality data, (4) of using nationwide mortality and survival data, and (5) of considering cancer risk factors. Among the methods, second method of using major demographic factors would be preferable in Korean situation
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A Epidemic Survey of the Shigellosis in Jeju Island during the First Half of Year 2000.
Jong Myon Bae, Sang Won Lee, Byung Guk Yang, Seong Chul Hong, Geun Ryang Bae, Sung Hack Kang
Korean J Epidemiol. 2001;23(1):80-80.
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Abstract
PURPOSE
A field investigation was done to evaluate the level of the epidemic of Shigellosis in Jeju Island during the first half of year 2000.
METHODS
Confirming the Shigellosis was done by the structured questionnaire and the result of rectal swab for the residents having a diarrhea.
RESULTS
As the confirmed patients with Shigella sonnei were 933 from 25 April to 14 August 2000, the crude incidence rate was 174 per 100,000 persons. The highest incidence rate was shown in 5-9 year-old group. Especially the south area of Jeju Island, called as Namjejugun, had the major epidemic occurrence.
CONCLUSIONS
The huge and chronic epidemic of Shigellosis was confirmed. The nature of this epidemic suggested that the endemic occurrence had been existed in Jeju Island.
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Nested Case-control Study on the Association between Alcohol and the Risk of Proximal Hip Fracture in the Elderly People in Korea.
Byung Joo Park, Kui Oak Jung, Hye Won Koo, Jong Myon Bae
Korean J Epidemiol. 1999;21(1):93-103.
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Abstract
OBJECTIVE: To assess the association between alcohol drinking and hip fracture in the elderly people in Korea. BACKGROUND: Hip fracture is known as one of the major health problems because of its high incidence and serious consequences in the elderly people. The association between alcohol consumption and hip fractures has not been directly evaluated yet in Korea. So we conducted a nested case-control study to investigate the relationship between alcohol consumption and hip fracture in the Korean elderly people. DESIGN: Nested case-control study from the Korea Elderly Pharmacoepidemiology Cohort (KEPEC), in Pusan, Korea.
METHODS
Seventy incident cases have been selected since 1993, and 280 controls have been matched with the cases by age and gender among the KEPEC. Average alcohol intake was calculated by multiplying frequency and amount of drinking and unit capacity of each alcohol type. Odds ratios of alcohol intake on the hip fracture and their confidence intervals were computed by using multiple logistic regression with Windows version SAS 6.12.
RESULTS
The elderly people's drinking rate is lower than the young people in Korea. In univariate analysis, crude odds ratio was 0.26 in male and adjusted odds ratio after contolling for age, smoking status, medication history, physical activity and body mass index was 0.36 in male. So current drinking reduces the risk of hip fracture. Adjusted odds ratio after controlling for age, smoking status, medication history, physical activity and body mass index odds ratio was 0.24 in female with moderate drinking.
CONCLUSION
We found that alcohol consumption reduces the risk of hip fracture in the elderly Korean. However, we could not explain the plausible mechanism with our data yet. So, we suggest the further study for elucidating the possible mechanism of the finding including the possible association between nutritional status, alcohol drinking and bone marrow density in the elderly.
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Measurement Errors on Normotensive Subjects in Screening Test.
Jong Myon Bae, Dae Sung Kim, Jaiyong Kim, Yoon Ok Ahn
Korean J Epidemiol. 1999;21(1):1-7.
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Abstract
BACKGROUND
Blood pressure measurements with a mercury sphygmomanometer serve as the screening test to establish the clinical diagnosis of primary hypertension. But one of the problems of hypertension screening is the variability of blood pressure measurements.
METHODS
In order to identify the measurement error of blood pressure through the biennial health screening program of Korea Insurance Medical Corporation, we compared the blood pressure of screening test with true value which defined as the mean of blood pressures taken from the direct contact and twice check-up among normotensive Seoul Cohort participants.
RESULTS
Three hundred forty-nine participants had both data of screening measurement and survey of direct contact. The means of difference in systolic and diastolic blood pressure between both data were 8.47 mmHg and 6.54 mmHg, respectively. These results showed statistical significance with paired t-test (p=0.001).
CONCLUSION
Our findings indicated that screening measurement of blood pressure had false negative. And if a epidemiologic study about blood pressure used the data of screening test, it should adjust value of systolic and diastolic blood pressure with adding 8 and 7 mmHg, respectively.
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Cohort Study on the Association getween Smoking and Proximal Hip Fracture in the Elderly People in Korea.
Byung Joo Park, Kui Oak Jung, Jong Myon Bae, Hye Won Koo, Dae Sung Kim
Korean J Epidemiol. 1998;20(2):246-256.
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Abstract
OBJECTIVE: To assess the association between cigarette smoking and hip fracture by using the Korea Pharmacoepidemiology Cohort(KPEC). BACKGROUND: Hip fracture is known as one of the major health problems because of its high incidence and serious consequences in the elderly people. Cigarette smoking, old age, female and low body weight have been reported as risk factors for osteoporosis which is regarded as one of the risk factors for hip fracture. But the relationship between cigarette smoking and hip fracture has not been directly evaluated yet. So we conducted a prospective cohort study to investigate the relationship between cigarette smoking and hip fracture in the Korean elderly. DESIGN: Prospective cohort study on the 8,994 elderly person aged 65 or more in Pusan, Korea between 1993 to 1996. METHODS: The Korea Phamacoepidemiology Cohort(KPEC) has been constructed with three kinds of data sources. One is from the Korea Medical Insurance Corporation; Medical Insurance Claims Database and Enrollee's Database. Other sources are from directly constructed pharmacy database and questionnaire data. incidence density and relative risk of smoking for hip fracture were estimated by using the KPEC database. Age and gender specific incidence density was calculated by dividing the number of hip fracture cases by person-years of the follow-up the cohort. Relative risks and their confidence intervals were computed by using multiple logistic regression by Windows version SAS 6.12.
RESULTS
The level of incidence density in female was higher than that in male, which was increasing with age in both gender. In the multivariate analysis, we observed significant relationship between soking and hip fracture in female(PR=1.94(1.01-3.76)) in the larger amount smoking group, after adjusting for the confounders; age, alcohol drinking, medication history, physical activity and body mass index, the relative risk became slightly decreased to 1.70(0.84-3.46).
CONCLUSION
Accoding to this result, we suggest that effective anti-smoking campaign should be established as soon as possible for the Korean elderly women.
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Usefulness of Somatotype Drawing as an Instrument of Recalling Obesity in High School Girls.
Jong Myon Bae
Korean J Epidemiol. 1997;19(2):147-151.
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Abstract
INTRODUCTION: The obesity is related to the chronic diseases of adults. The measurement of obesity level in adolescence is recommended by using Body Mass Index (BMI), but there is a possiblity of recall bias. S@rensen et al(1983) suggested the usefulness of somatotype drawing in measuring the past weight. The aim is to evaluate the usefulness of somatotype drawing as a instrument of recalling obesity in girls.
METHODS
Study population were second-grade girl students in a high school. The questionnaire survey was done. The somatotype drawing used to assess body build in now, 2-year-ago, 4-year-ago, and 5-year-ago. The BMIs in each period were obtained from 'Annual Health Profile Records'(AHPR).
RESULTS
The means of height now and of weight now were 160.48cm and 54.66kg respectively in the 651 subjects so that the median of BMI now was 20.82. The scores of somatotype drawing increased according to higher BMI in all 4 periods. Spearman's correlation coefficients between score of somatotype drawing and BMI in now, 2-year-ago, 4-year-ago, and 5-year-ago were 0.71, 0.67, 0.65 and 0.63 respectively.
CONCLUSION
The instrument of somatotype drawing might be useful to measure the level of past obesity in girls.
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Usefulness of Somatotype Drawing as a Instrument of Measuring Obesity Level in Korea.
Jong Myon Bae, Yoon Ok Ahn
Korean J Epidemiol. 1996;18(1):101-107.
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Abstract
BACKGROUND
As modern epidemiologic studies began to identify obesity as a risk factor for cardiovascular disease, diabetes, hypertension, and cancer, measuring the degree of excess body fat is important on epidemiologic surveys. The evaluation of obesity level in epidemiologic surveys has been mostly done indirectly by measuring patient's height and weight. But, the anthropometry could not be done to respondents of recalling past anthropometric values or to proxy respondents. This study was attempted to elucidate usefulness of a somatotype drawing as a measuring instrument of obesity level in epidemiologic surveys in Korea.
METHOD
The inclusion criteria of subjects were (1) members of the Seoul Cohort Study, who were recruited by self-administered structured questionnaire survey through mailing to the healthy men between the ages of 40 and 59 years through the program of a biennial health checkup offered by the Korean Medical Insurance Corporation (KMIC), and (2) volunteers for cancer screening program offered by KMIC. For assessing usefulness of the instrument, measurement of status/weight and self-administered questionnaire survey were done separately through the program of a biennial health checkup and of cancer screening.
RESULTS
The data were collected from 138 subjects, whose Body Mass Index (kg/M2) was 23.58+/-1.46 (mean+/-SD). When the validity was measured through correlation with BMI, Spearman's correlation coefficient (rs) was 0.72 (p<0.05), that remained statistically significant after adjusting age, education level, and monthly income and occupation. And, the grades of somatotypo drawing were grouped as 1-3, 4-6, 7-8 by ANOVA and Tukey test.
CONCLUSIONS
Instrument using somatotype drawing is applicable to screen degree of body fat in self-administered questionnaire surveys in Korea.
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An epidemiologic survey on cancer epidemic at pukcheju-gun.
Yoon Ok Ahn, Byung Joo Park, Jong Myon Bae, Duk Hyung Lee, Dong Jin Kim, Jun Hwan Kim, Jong Won Kang, Yong Jin Jung, Dong Mo Rhie
Korean J Epidemiol. ;15(2):185-195.
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Abstract
According to a newspaper account for the epidemic occurrence of cancer patients at an area of Pukcheju-gun, epidemic survey was conducted to identify the epidemicity and possible cause of the cancer epidemic from Sep. 23, 1993 to Sep. 28, 1993. Housefold survey for identifying prevalent There was no female cancer cases, no temporal dusting pattern of cancer occurrence and no clustering of specific types of cancer. In the evaluation of ground water and sea water, carcinogenic substances were not detected. According to the above evidences, it was difficult to confirm that there was an epidemic occurrence of cancer at the area. And the possibility of the association of environmental carcinogenic factors with the cancer occurrence seemed to be very low.
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