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Jae Seok Hong 3 Articles
Pilot Study on Recruiting Medical Checkup Participants by Mail Survey among Korean Vietnam Veterans.
Sang Wook Yi, Jae Seok Hong, Heechoul Ohrr
Korean J Prev Med. 2003;36(2):171-178.
  • 2,039 View
  • 21 Download
AbstractAbstract PDF
OBJECTIVE
The aim of this study was to identify the validity of recruiting medical checkup participants of Vietnam veterans using a mail survey, and to identify the 'Vietnam service related characteristics' and `general characteristics' of Vietnam veterans groups. METHOD: In this study, a total 900 veterans were randomly selected from the list of Vietnam veterans from 1964 to 1973. The veterans were classified into 5 groups, taking into consideration their registered status in the Ministry of Patriots and Veterans Affairs; the VRD (veterans who have agent orange-related diseases), VSD (veterans who have agent orange-suspected disease), VM (veterans who performed meritorious deeds during the war), VR (veterans who were registered with the Ministry of Patriots and Veterans Affair) and OV (other veterans) groups. By means of postal surveys, the veterans' intention to participate in the medical checkup for our research, and their socioeconomic and general characteristics were investigated. 52 surveys were returned due to the subjects not residing at the listed address, and were excluded from the analysis. RESULT: 699 of the 848 veterans (82.4%) responded to the survey, of which 619 (88.6%) intended to participate in the medical checkup for our research. The 5 veterans groups all had similar ages, Vietnam service period, Agent Orange exposure, troop characteristic and wartime class, with the exception of VM, who were older, and with a greater number of officers than the other 4 groups. There was a big difference in the health statius among the Vietnam veterans group. The VM and OV were much healthier than VRD, VSD and VR groups. The socioeconomic stati of the VRD, VSD and VR groups were lower than those of the VM and OV groups. CONCLUSION: Although there were some limitations, the recruitment, by mail, of medical checkup participants from Vietnam veterans is a valid and feasible method. The VM and OV groups were much healthier, and with higher socioeconomic stati, than the VRD, VSD, and VR groups.
Summary
Cohort Study on Age at Menopause and Mortality- Kangwha Cohort Study -.
Jae Seok Hong, Sang Wook Yi, Sun Ha Jee, Tae Yong Sohn, Heechoul Ohrr
Korean J Prev Med. 2001;34(4):323-330.
  • 2,423 View
  • 28 Download
AbstractAbstract PDF
OBJECTIVE
To examine the association between age at menopause and mortality in a population-based sample of women in Kangwha, Korea. METHODS: From the Kangwha Cohort, followed-up from 1985 to 1999, the data of the over 55 year old female group(n=3,596) was used in this study to examine the association between age at menopause and mortality. We calculated the all causes mortality risk ratio and the cancer mortality risk ratio by age at menopause grouping using the Cox Proportional Hazards Model with adjustments for age, BMI, smoking, education, chronic disease, self-rated health status, alcohol consumption and age at first birth. RESULT AND CONCLUSION: Compared to women who had menopause at 45-49 years, the all causes mortality risk ratio was 1.24 for women with menopause at less than 40 years(95% CI=1.01-1.53) and 1.05 for women with menopause at over 50 years(95% CI=0.92-1.20). Also, compared to women who had menopause at 45-49 years, the cancer mortality risk ratio was 1.53 for women with menopause at less than 40 years(95% CI=0.78-2.98) and 1.17 for women with menopause at over 50 years(95% CI=0.77-1.80).
Summary
A Proposal of Study Designs and Methods for Evaluating the Adverse Health Effects of Agent Orange among Korean Vietnam Veterans.
Sang Wook Yi, Jong Uk Won, Jae Seok Hong, Heechoul Ohrr
Korean J Prev Med. 2001;34(3):228-236.
  • 1,948 View
  • 20 Download
AbstractAbstract PDF
OBJECTIVES
To propose a feasible, valid and appropriate study designs and epidemiologic methods for evaluating the adverse health effects of Agent Orange-chemical defoliants used in Vietnam- in Korea. METHODS: A literature study was performed on Agent Orange, herbicides, pesticides and dioxins. The study subjects, study design, exposure assessment and health outcomes assessment were examined in each study. The potential data sources for the study subjects, study design, exposure assessment and health outcomes assessment in Korea were investigated. RESULTS AND CONCLUSION: In earlier Korean studies, research subjects for studying the effects of Agent Orange were identified from the patients or persons who claimed to have Agent Orange-related diseases due to the difficulties in identifying the entire population of Vietnam veterans in Korea. In this study, an attempt was made to identify the total number of Vietnam veterans in Korea. As a result, the addresses of 20,000 Vietnam veterans were obtained. It is proposed that a retrospective cohort design on a sample of the total number of Vietnam veterans is a feasible and appropriate study design. Self report questionnaires and military records were proposed to assess the exposure level. It is believed that measuring the plasma or tissue TCDD should be used only for a validation study assessing the level of exposure. For the health outcomes assessment, it is possible to obtain the mortality, cancer frequency, physical examination, screening and medical insurance record data.
Summary

JPMPH : Journal of Preventive Medicine and Public Health