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Duk Hee Lee 3 Articles
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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An Epidemiological Investigation of Bacterial Dysentery Outbreak in Busan(Pusan), 1999.
Hai Rim Shin, Duk Hee Lee, Heung Man Sul, Sang Won Lee, Young Ju Huh
Korean J Epidemiol. 2000;22(2):93-100.
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Abstract
BACKGROUND
In March 1999, six children who attended a nursery school became ill with acute gastroenteritis by Shigella sonnei. The majority of the children became sick one day after sharing a snack which was served from one of the children's home. By the time the outbreak of dysentery was recognized, the rest of family members of the children became also sick. The nursery school was located in a crowded residential area. EPIDEMIOLOGIC INVESTIGATION: After active and passive surveillance was established on patients with diarrhea, 438 patients were registered. Among them, 252 patients were considered to have simple diarrhea, but the rest (186 patients) suffered from more than three consecutive diarrheas. Shigella sonnei was isolated from 75 patients. The first attack rate was estimated at 50.0%, the second, 25.6%-34.3% and the third, 13.5%. The epidemic lasted for two months spreading further from person to person in the highly populous area. The active surveillance was implemented after the occurrence of the secondary attack of dysentery among the residents, who had no obvious direct contact with people associated with the nursery school.
CONCLUSION
This investigation demonstrates the need for prompt implementation of active surveillance when Shigella infection is recognized in a highly populous city.
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An Epidemiologic Investigation of Typhoid Fever Outbreak in Pusan, 1996.
Hai Rim Shin, Byung Seong Suh, Jue Bok Song, Duk Hee Lee, Meang Bok Lee, Jin Hyung Park, Man Su Kim, Young Hack Shin, Sang Won Lee, Hee Choul Ohrr
Korean J Epidemiol. 1997;19(2):122-130.
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Abstract
An epidemiologic investigation was carried out to identify the source of infection of typhoid fever outbreak, which was occurred in Nam-Gu, Pusan city from April 20 to June 28, 1996. The distribution of 83 reported cases (55 confirmed cases and 28 suspected cases) by sex and age group showed that this epidemic would be occurred by the exposure to a common source with low toxic pathogen because 55.4% of cases were under 20 years old and most of the adults cases were female. The epidemic curve showed a unimodel curve with a peak on about 15 May and tailed down to 23 June, suggesting that the exposure was constant. These results supposed that the contamination of a public water supply would be the source of infection. The analysis of reported cases and population survey conducted to household members and community contacts living in the epidemic area, led the conclusion that the source of infection was tap water supplied through the Dae Youn pumping station, based on the following findings: (1) There were singificant differences of incidence rate among regions (Tong) even though in the same Dong and the spot map of incident cases distributed in accord with the water supply by Dae-Youn pumping station. (2) Among reported cases, 21 cases, including 17 confirmed cases, stated they had used only tap water. (3) The analysis of tap water from the house which had seven typhoid cases, revealed the contamination of E coli and the dilution of residual chlorinated concentration. (4) The outbreak of typhoid fever was stopped after the replacement of The worn-out pipe line of tap water supply to the new one.
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Epidemiol Health : Epidemiology and Health