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Trend of the Anthropometric Indices Among Adolescents in a Urban and a Rural Area Over the Period 1996~2005.
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SoHyun Park, Minjung Ko, Shin Ah Kim, Mi Kyung Kim, Soo Hun Cho, Bo Youl Choi
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Korean J Epidemiol. 2006;28(2):189-198.
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Abstract
This study investigated the secular trend of anthropometric parameters of 2,153 high school students in one urban and one rural area in Korea. The cross-sectional data was collected in 1996 and 2005 in Seoul and Gyung-gi province.
As a result, the height of boys has increased by 2cm, whereas the weight has increased by 6.3kg from 1996 to 2005.
By contrast, those parameters, including height or weight, did not change in girls. The prevalence of obesity has been more than doubled from 9.3% in 1996 to 20.5% in 2005 in boys; while that of girls was almost same for the same period (1998, 11.1%; 2005, 11.4%). In particular, the greater increase of obesity among boys was found in urban, which implicates the importance of environmental factor in determining weight gains among adolescents. This result emphasizes that the tailored intervention is strongly warranted, in particular among boys residing in urban area.
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Occupational Cancer Surveillance System Using Data Linkage Analysis in Korea.
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Sang Yun Lee, Jaiyong Kim, Seongwoo Choi, Hyungjun Im, Kijung Yoon, Ho Jang Kwon, Soo Hun Cho, Daehee Kang
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Korean J Epidemiol. 1999;21(2):276-282.
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To develop the occupational cancer surveillance system in Korea, data linkage analysis was performed on the subjects of Health-monitoring-pocketbook (the list of subjects who were exposed to selected occupational carcinogens) and the retired workers of a cokes manufacturing factory using the Korean medical insurance data, Korean death certificate data and Korean cancer registry data.
Study subjects comprised the 822 retired subjects and the 3101 present-post subjects of Health-monitoring-pocketbook and the 182 retired workers of a cokes manufacturing factory. The incidence of cancer of these study subjects was ascertained by linkage of Korean medical insurance data of year 1995-6, Korean death certificate data of year 1992-8 and Korean cancer registry data of year 1993-5.
In the study subjects, Eighty seven percent were males and mean age was 39.3+/-8.9 year-old, Average work duration was 8.0+/-5.5 years. Chrome, asbestos and cokes were the most frequent exposed agents. In the study subjects, total 13 cancer cases were ascertained by data linkage analysis. In the ascertained cancer cases, 8 cases were male and 5 cases were female, and 7 cases were aged 40-49 yr, 5 cases were aged 50-59 yr and 1 cases were aged 30-39 yr. The commonest exposure agent in the ascertained cancer cases was asbestos and cokes. By the site of cancer, 3 stomach cancer cases, 2 hematopoietic cancer cases and 2 biliary tract cancer cases were ascertained.
The occupational cancer surveillance system using data linkage analysis on the workers exposed to hazardous agents was the most feasible and efficient method in Korea. And to do this, establishment of occupational history information in several disease registry database is needed with the effort of estimating the proper size of workers exposed hazardous agents.
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The Usefulness of the Secondary Database for Occupational Asthma Surveillance System in Korea.
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Hyungjune Im, Sungwoo Choi, Jaiyong Kim, Sang Yun Lee, Kijung Yoon, Youngju Lee, Ho Jang Kwon, Daehee Kang, Soo Hun Cho
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Korean J Epidemiol. 1999;21(2):266-275.
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Occupational asthma is defined as a disease that is characterized by airway narrowing and bronchial hyperresponsiveness caused by specific working environment.
It is estimated that occupational asthma cases in Korea have been underreported. This study, using Korean Medical Insurance Data(KMID), examined the distribution of asthma patients' occupations and the frequency of high risk occupations for occupational asthma in Seoul, Korea to evaluate the usefulness of the KMID data as a database for active occupational asthma surveillance system.
Six hundreds and forty two(30.7%) of 2093 patients who were finally chosen as a study population by using 1995-year KMID, were contacted by telephone. 296 persons(47.4%) of 642 patients replied that they were diagnosed as asthma. The occupations of 296 asthma patients were classified by Korean standardized industrial classfication (KSIC). The most common occupations included Wholesale and Retail trade(19.5%), Real estate, Renting and Business activities(14.9%), Construction(14.9%), Manufacturing(12.3%). Forty(13.5%) of 296 patients who could be classified by KSIC were working at high risk jobs for occupational asthma.
KMID could be used as a useful data for occupational asthma surveillance system if the limitations of KMID, which is the accuracy of diagnosis, data accessibility, difficulty of following up study subjects, would be solved. The prevalence of occupational asthma could be estimated if the follow-up study diagnosing occupational asthma for asthma patients working in high risk jobs would be held.
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Current Status of Multicenter Cancer Cohort Study with Biological Materials Bank in Korea.
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Keun Young Yoo, Hai Rim Shin, Song Hun Chang, Jung Myung Choi, Chang Yup Kim, Kun Sei Lee, Won Jin Lee, Dae Hee Kang, Bu Ok Lee, Duck Hee Lee, Sue Kyung Park, Joo Hon Sung, Yeong Su Ju, Dae Sung Kim, Jong Won Kang, Soo Hun Cho
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Korean J Epidemiol. 1998;20(2):275-278.
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This cohort study is a collaborative effort of 8 institutions. The goal is to establish a large scale cohort that can be followed for 10 or more years to assess the relationship between life-styles and cancer occurrence, and to evaluate the role of environmental exposures in the development of six major sites of cancers(stomach, liver, lung, colorectum, uterine cervix and female breast) in the rural population. Since 1993, 11,304 men and women aged over 35 living in four areas have been recruited. The number of target population is 30,000 persons, which is expected to be successfully recruited until 1999. Each subject has completed a detailed questionnaire on general life-styles, reproductive factors, and agricultural chemical exposures through the interview. Anthropometric measurements with body fat composition and the routine clinical laboratories were examined. For the cancer-free cohort, physical examination by the physicians and serologic tests for hepatitis markers, some tumor markers, and lipid profile have been done, but not all. In order to provide an opportunity to incorporate barious biomarkers of exposure and effect as well as genetic susceptibility, a biologic tissue bank has been established from blood and urine sample(plasma, WBC buffy-coat, RBC clots, and urine supernatant) stored at-70degrees C.
Re-examination of changes in exposere to risk factors will be done periodically. Disease occurrence will be ascertained by the active(mainly through diagnosis by physicians) and the passive surveillance(through both death certificate and screening of medical utilization records).
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