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D H Kim 4 Articles
Evaluation on Hearing Conservation Program in the Noisy Industries.
M S Kwak, J T Lee, J H Kim, S H Urm, D H Kim, Byung Chul Son, C H Lee
Korean J Prev Med. 1997;30(4):815-829.
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AbstractAbstract PDF
This study was performed to assist the employer to establish the effective program for hearing conservation of noisy industry. The study subjects were health care managers of an industry and the study industries were divided into two groups(Group I, 37 industries; have the workers diagnosed as noise-induced hearing loss, Group II, 41 industries; not have the workers diagnosed as noise-induced hearing loss) and the question method carried out through the face to face interview. The contents of questionnaire for OSHA's hearing conservation program(HCP) consisted of seven components: 5 questions of monitoring of employee noise exposures(component 1), 6 questions of the institution of engineering, work practice, and administrative controls for excessive noise(component 2), 8 questions of the provision of each overexposed employee with an individually fitted hearing protector with an adequate noise reduction rating(component 3), 14 questions of employee training and education regarding noise hazards and protection measures(component 4), 9 questions of baseline and annual audiometry(component 5), 3 questions of procedures for preventing further occupational hearing loss by an employee whenever such an event has been identified(component 6), and 1 question of recording keeping(component 7), thus total numbers of questions was 46. The numbers of statistically significant difference(p<0.05) between two groups were 2(25.0%) among 8 questions of component 3, 10(71.4%) among 14 questions of component 4, 3(33.3%) among 8 questions of component 5, 2(66.7%) among 3 questions of component 6, and 17(37.0%) among total 46 questions of questionnaire. Above results showed that the level of HCP acceptance in group I was lower than in group II. Thus employer's understanding about HCP should be precede for the effective hearing conservation program of employee and the adequate hearing protector, training and education, baseline and annual audiometry, and procedures for preventing further occupational hearing loss for hearing conservation would be more emphasized.
Summary
Nationwide incidence estimation of colorectal cancer by subsite of origin in Korea.
B J Park, M S Lee, Y O Ahn, D S Heo, D H Kim, H Kim, H S Yew, T S Park
Korean J Prev Med. 1996;29(3):555-564.
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AbstractAbstract PDF
Nationwide incidence survey was conducted to estimate the annual incidence rates of colorectal cancer among Koreans between Jan 1, 1988 and Dec 31, 1989. The population of the incidence survey was the beneficiaries of Korea Medical Insurance Corporation(KMIC), Which were about 4,500,000 persons. The medical records of patients with diagnosis of either ICD-9 153(colon cancer), 154(rectal caner), 197(secondary malignat neoplasm of digestive and respiratory system), or 211(benign neoplasm of digestive system) were abstracted for the period with the standard format. The diagnosis was confirmed by one oncologist through the review of these abstracts. The numerator of the rate was finally defined as the incident colorectal cancer cases diagnosed between July 1, 1988 and June 30, 1989. The crude annual incidence of colorectal cancer for men was 13.1 per 100,000 and 10.6 for women, which was still low when compared with those of Japan and China during the same period. Age-adjusted sex ratio was 1.2 for fight-sided colon cancer and 1.9 for left-sided colon cancer. The excess of right colon cancer among postmenopausal women was remarkable, so further analytical approach would be needed to investigate which factors are related with this phenomenon.
Summary
The Type of Anemia in Organic Solvent Workers by MCV and RDW.
S J Kim, S H Ohm, D H Kim, C U Lee, J H Chun, S C Kim, K T Pae
Korean J Prev Med. 1992;25(2):162-171.
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AbstractAbstract PDF
The hematologic effect by low-concentration and repeated exposure to mixed organic solvent remains obscure. This study was performed to evaluate the hematologic effect by mixed organic solvent exposure, especially on the type of anemia by mean corpuscular volume(MCV) and red blood cell distribution width(RDW). The subject were 64 organic solvent workers(male 4, female 60) and 78 general workers(male 18, female 60) who showed anemic tendency in worker's health examination which carried out by Pusan Paik Hospital from January to December, 1988. The author gained some hematologic findings (hemoglobin, hematocrit, RBC, WBC, MCV, MCHC, platelet count, ESR, RDW) from auto-analysis method by coulter counter S plus IV, and compared the type of anemia by MCV and RDW. In the pilot study for estimating the prevalence of anemia according to the type of job, the prevalence rate was higher in organic solvent workers than in public officials as 10.9% and 4.1% respectively. There were statistical significance in the value of hemoglobin, hematocrit, MCV, MCHC, platelet count, ESR, RDW between the two study groups with more severe anemic tendency in organic solvent workers. The type of anemia in organic solvent workers was microcytic and anisocytic with the mean value of 68.28+/-8.3fL of MCV and 19.1+/-4.0% of RDW.
Summary
Hematologic Findings and Urinarysis of Workers Exposed to Mixed Organic Solvents.
K W Jeong, D H Kim, S H Ohm, S J Kim, J H Kim, S S Moon, J H Chun, Y W Kim
Korean J Prev Med. 1991;24(3):314-337.
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AbstractAbstract PDF
To evaluate the effects on health by exposure to mixed organic solvents, the author analyzed some labortory findings of blood(hemoglobin, hematocrit, RBC, WBC, SGOT, SGPT) and urine(protein, blood, sugar) that were obtained from 722 workers (male: 446, female: 276) who worked in plywood, painting and shoes factories in Pusan area from January to December, 1990. The result were as follows; 1. The mean values of each hematologic finding were all within normal limit but there were significant differences at hematocrit, RBC, WBC, SGOT, in male and at WBC, SGPT in female at the comparison of the mean values and the distribution according to the normal criteria by type of work. 2. There were no differences in urinalysis (protein, blood, sugar) by type of work. 3. In stepwise multiple regression, analysis of hematologic findings on age, working duration and type of work, regression coefficients on age and type of work were relatively high in male and female subject, respectively. As a result of this study, it is considered that the measurement of WBC with morphology is significant in hematologic findings and instead of spot urine and urinstix, 24 hours urine and quantitative analysis is required in urinalysis in screening test for healthy status of workers who deal with the organic solvents.
Summary

JPMPH : Journal of Preventive Medicine and Public Health