- Study of Cancer Cases by Industry in Kwangju-Chonnam Area: Based on Industrial Medical Insurance Record.
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Yong Sik Kim, Won Moon Oh, Hyung Cheol Park, Jin Su Choi, In Hyun Song
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Korean J Prev Med. 1990;23(2):207-215.
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- In order to investigate the occurrence characteristics of cancer in terms of industry in Kwangju-Chonnam area, medical utilization records of industrial medical insurance corporations during the period of 1987 to 1988 were reviewed for the identification of neoplastic disease. The cases obtained from the medical records were followed up for the verification and to get additional information. Standardized incidence data were compared by occupational characteristics. Multiple logistic regression analysis was applied to analyze the difference of incidence or distribution of cancer as a whole or of some selected cancer. Total cases of cancer identified were 242 during the study period. Annual incidence rate was calculated as 123.1 per 100,000 person. The frequent types of cancer were cancers of stomach, liver, lung, colon and rectum, bladder and lymphoma in descending order. Employees of mine and other sand handling industries showed significantly higher risks for cancer of stomach and cancer as a whole. Employees of the transportation industry showed the higher risk for cancer of liver. Workers in small-sized industry (< or = 100) had a higher risk for cancer than who in large-sized industry (>100). These findings suggested the effect of occupational environmental exposure to cancer development.
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Summary
- An Estimation of Carbamate Pesticide Exposure in a Rural Area: A pilot study using personal sampler and gas chromatography.
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Byung Hae Kim, Yong Sik Kim, Jin Su Choi
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Korean J Prev Med. 1990;23(2):201-206.
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- The exposures to carbamate pesticides (BPMC specifically) of agricultural workers were estimated by collecting pesticide in air by personal sampler and by analyzing with gas chromatography. Data revealed that the highest BPMC concentration in the aspirated air was 7.7 mg/m3. Concentrations were generally higher in the group whose spray conditions were controlled than the group uncontrolled. Actual concentrations were relatively lower than the values predicted theoretically. These findings suggest that personal sampler be useful in the estimation of pesticide exposure.
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- Effect of Hyperbaric Oxygenation on Pulmonary Superoxide Dismutase Activity in Neonatal and Adult Rats.
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Hyeong Sik Ahn, Soo Hun Cho, Dork Ro Yun, Dong Ryool Lee, Yong Sik Kim
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Korean J Prev Med. 1989;22(1):51-56.
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- To investigate the effect of hyperbaric oxygenation on superoxide dismutase activity, neonatal rats (7-10 days old) and adult rats (approximately 100 days old) were continuously exposed to hyperbaric oxygen environment of 2.4ATA for 8 hours and their superoxide dismutase activity were measured. Neonatal rats, all survived through exposure, showed significant increases in the pulmonary superoxide dismutase activity at immediately and 24 hours after exposure. Adult rats, whose 8 hour survival rates were 14 %, did not show any significant increase in the activity of pulmonary superoxide dismutase as compared to the control adult rats. These findings are indicating that increased tolerance to oxygen toxicity in neonatal animals during exposure may be attributed to the increase in activity of superoxide dismutase in neonatal rats.
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- Physician Utilization and its Determinants in Rural and Urban Slun Areas.
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Jin Hee Lee, Kee Ho Ko, Yong Sik Kim, Jung Ae Rhee
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Korean J Prev Med. 1988;21(2):404-418.
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- The household survey was performed in a urban slum and a rural Chonnam areas to measure the level of illness and medical care utilization and to find the determinants of physician utilization. The data revealed that age-adjusted prevalence rates of acute and chronic diseases were much the same in both areas ranged between 10.0 to 11.3%. But medical care utilization was more frequent in urban slum than in rural area. The facility of the first medical contact was also different. Some personal and disease related variables including disease severity and activity restricted day were significantly, but somewhat differently by area, associated with physician utilization pattern. When applying Anderson model, the medical need factors explained 42.2 and 40.4% of physician utilization in urban slum and in rural areas respectively, while the enabling factors explained 18.0 and 12.2% and the predisposing factors explained 17.1 and 8.9% correspondingly.
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