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Bo Young Park 2 Articles
Reliability of Covariates in Baseline Survey of a Cohort Study: Epidemiological Investigation on Cancer Risk Among Residents Who Reside Near the Nuclear Power Plants in Korea.
Sanghyuk Bae, Bo Young Park, Zhong Min Li, Yoon Ok Ahn
J Prev Med Public Health. 2010;43(2):159-165.
DOI: https://doi.org/10.3961/jpmph.2010.43.2.159
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  • 1 Crossref
AbstractAbstract PDF
OBJECTIVES
We evaluated the reliability of the possible covariates of the baseline survey data collected for the Epidemiological Investigation on Cancer Risk Among Residents Who Reside Near the Nuclear Power Plants in Korea. METHODS: Follow-up surveys were conducted for 477 participants of the cohort at less than 1 year after the initial survey. The mean interval between the initial and follow-up surveys was 282.5 days. Possible covariates were identified by analyzing the correlations with the exposure variable and associations with the outcome variables for all the variables. Logistic regression analysis with stepwise selection was further conducted among the possible covariates to select variables that have covariance with other variables. We considered that these variables can be representing other variables. Seven variables for the males and 3 variables for the females, which had covariance with other possible covariates, were selected as representative variables. The Kappa index of each variable was calculated. RESULTS: For the males, the Kappa indexes were as follow; family history of cancer was 0.64, family history of liver diseases in parents and siblings was 0.56, family history of hypertension in parents and siblings was 0.51, family history of liver diseases was 0.50, family history of hypertension was 0.44, a history of chronic liver diseases was 0.53 and history of pulmonary tuberculosis was 0.36. For females, the Kappa indexes were as follow; family history of cancer was 0.58, family history of hypertension in parents and siblings was 0.56 and family history of hypertension was 0.47. CONCLUSIONS: Most of the possible covariates showed good to moderate agreement.
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  • Cancer Risk in Adult Residents near Nuclear Power Plants in Korea - A Cohort Study of 1992-2010
    Yoon-Ok Ahn, Zhong Min Li
    Journal of Korean Medical Science.2012; 27(9): 999.     CrossRef
Dose-Response Relationship between Catalase and Superoxide dismutase Activity in Testes of Acutely Intoxicated Rats by Cadmium.
Bo Young Park, Jung Duck Park, Kyou Chull Chung
Korean J Prev Med. 1988;21(2):295-306.
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AbstractAbstract PDF
Dose-response relationship among blood cadmium concentrations, catalase and superoxide dismutase activities were studied with acutely intoxicated rats by cadmium. The Sprague-Dawley male rats to which single dose of 1-32 mg/kg CdCl2 were administered into peritoneal cavity were sacrificed by decapitation at 3-36 hours after the administration. Cadmium concentrations in blood increased significantly with dose of CdCl2 administered and reached peak level at 3 hours later. Catalase activities in rats' tests were not correlated with exposure time elapsed after the administration in rats to which 1-2 mg/kg of CdCl2 were administered, but they showed linear relationship with time in groups to which 4-32 mg/kg of CdCl2 were administered. Cu, Zn-SOD activities in tests of acutely intoxicated rats by cadmium were not altered either by dosage or by time elapsed after the administration. Mn-SOD activities in the tests were also not influenced by dosage of 1-2 mg/kg CdCl2, but remarkably inactivated by dosage of 4-32 mg/kg CdCl2 with time elapsed after the administration. Neither catalase, Cu, Zn-SOD nor Mn-SOD activities of tests were correlated with blood cadmium concentrations in acutely intoxicated rats by cadmium.
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JPMPH : Journal of Preventive Medicine and Public Health