소아 혈중 연농도에 관한 조사

이용환,이덕희,김진하,박인근,한태영,장세한 大韓産業醫學會 1995 대한직업환경의학회지 Vol.7 No.1

지리적 위치에 따라 소아들에 있어서 혈중 연농도에 차이가 있는지의 여부와 소아들의 혈중 연농도의 참고치 계산을 위한 기초자료를 얻기 위하여 6-8세의 도심지역 거주 소아 102명과 교외지역 거주 86명, 총 188명을 대상으로 조사하여 다음과 같은 결과를 얻었다. 1. 전체 소아들의 평균혈중 연농도는 산술평균이 7.24, 기하평균이 6.92 ㎍/100㎖이었으며 남자가 여자보다 통계적으로 유의하게 더 높았다(p<0.05). 2. 도심지역과 교외지역 거주 소아들의 혈중 연농도는 도심지역거주 소아가 남, 녀 모두에서 교외지역 거주 소아보다 통계적으로 유의하게 더 높았다(p<0.05). 3. 혈중 연농도에 따른 분포에서는 <5 ㎍/100㎖군에 조사대상자 188명의 17.02%가 분포되었고 도심지역(5.88%)보다 교외지역(30.23%)에서 더 많은 분포를 보였으며, 10 ㎍/100㎖이상 군에는 전체 소아의 12.23%가 분포하고 있었으며, 도심지역(20.59%)이 교외지역(2.33%)보다 더 많이 분포하고 있었다. 이상의 결과에서 볼 때 도심지역 거주 소아들에 대한 연폭로의 관리대책이 시급히 마련되어야 할 것으로 판단된다. The authors conducted this study to evaluate some differences in blood lead levels between inner-city and suburban children and obtain the basic data of the reference value of the blood lead concentrations in children. The subjects were composed of 102 children residing in inner-city and 86 children in suburban. Their age range were 6 to 8 years old and the obtained results were as follows; 1. The arithmetic means of the blood lead level in male and female, male, and female children were 7.24, 7.40, 7.08 ㎍/100㎖, and geometric means were 6.92, 7.08, 6.76㎍/100㎖, respectively. 2. The children residing in inner-city had the higher blood lead levels both male and female than suburban children with statistical significance(p<0.05) 3. Seventeen percent of the total subjects had lead concentrations < 5 ㎍/100㎖, and 5.88% of inner-city children and 30.23% of suburban children had this lead values. But in ≥10㎍/100㎖ group, the inner-city children(20.39%) were more distributed than suburban children(2.33%), and 12.33% of total subjects had this lead values.

작업유형별 근골격계 증상 호소율에 관한 조사연구

오혜주,이덕희,박인근,장세한 고신대학교 의과대학 1995 고신대학교의과대학부설연구소논문집 Vol.1 No.-

연 폭로근로자의 신경행동학적 변화

박인근,이덕희,이용환,김진하,장세한 고신대학교 의과대학 1995 고신대학교의과대학부설연구소논문집 Vol.1 No.-

꼭지점댄스와 걷기의 에너지 소비량 및 운동강도 비교 연구

오수일(Su Il Oh),홍관이(Kwan Yi Hong),김세환(She Whan Kim),황향희(Hyang Hee Hwang),장재훈(Jae Hoon Jang),허선(Sun Hur) 한국사회체육학회 2006 한국사회체육학회지 Vol.0 No.27

Formulation of Batch Fermentation Kinetics for Succinic Acid Production in Mannheimia succiniciproducens

Sang Yup LEE,Jong Myoung PARK,Hyohak SONG,She Hee JANG 한국생물공학회 2009 한국생물공학회 학술대회 Vol.2009 No.10

작업유형별 근골격계 증상 호소율에 관한 조사연구

오혜주,이덕희,박인근,장세한,Oh, Hae-Ju,Lee, Duk-Hee,Park, In-Guen,Jang, She-Han 대한예방의학회 1994 Journal of Preventive Medicine and Public Health Vol.27 No.2

Though people occupationally exposed to machineries and automation in the industrialized society desire work involving decreased strength, due to the continuous and repetitive activities, a new industrial stress is present. Studies on prevalence of musculoskeletal disease and their related risk factors have evolved. In this study in relation to work tasks, we investigated the differences in musculoskeletal symptoms occurring In each body region. The results of the survey were as follows. 1. When comparing age, level of education, work duration, job satisfaction and leisure time activities according to work task, age in control group was $38.83{\pm}5.5$, in comparison to the other 2 groups was smaller(p<0.05), and level of education in control group was higher (p<0.05). Work duration in the cutting department was $8.04{\pm}4.99$ years longer than the other 2 groups (p<0.05), but there was no difference in the job satisfaction and leisure time activities. 2. The mean of symptom scores of each work task was 1.54 in the cutting department, 1.57 in the press department and 1.59 in the control group, and there was no significant differnce in the 3 groups. The mean of symptom scores for upper extremities in the control group was low but no statistically significant diffrence was shown. 3. When comparing the mean of symptom score according to work task in the each body region, in the shoulder region, the symptom score in the press department which desired strength was higher than the other 2 groups but no significant difference was shown. In the wrist region the cutting department scored 1.01 and in comparison to the other 2 groups was significantly increased (p<0.05). 4. The results of the univariate regression analysis on the major individual risk factors associated with musculoskeletal symptom relating work showed that previous symptom complaints in the same body region was significant risk factor(p<0.001) in the whole body Besides wrist, hip, and knee, psychological problem was shown to be a significant factor(p<0.05). And the body regions which work task was significant risk factor were wrist and neck region (p<0.05). 5. The results of the multiple regression analysis involving significant factors of each body region from the univariate regression analysis showed that previous symptom complaint in whole body region(p<0.001) and psychological problem in the shoulder, elbow and lumbar region (p<0.05) were significant factors, and work task was significant factor in the wrist (p<0.05).

연 폭로근로자의 신경행동학적 변화

박인근,이덕희,이용환,김진하,장세한,Park, In-Geun,Lee, Duk-Hee,Lee, Yong-Hwan,Kim, Jin-Ha,Jang, She-Han 대한예방의학회 1995 Journal of Preventive Medicine and Public Health Vol.28 No.1

연 폭로 근로자들의 혈중 연 농도가 신경 행동 검사에 미치는 영향을 알기 위하여 본 연구를 시행하였다. 부산 모공단내의 연 취급사업장에 근무하는 남자근로자 59명을 대상군으로 선택하였다. 신경 행동 검사는 WHO(World Health Organization)에서 제안한 NCTB(Neurobehavioral Core Test Battery) 중 5항목을 사용하여 시행하였다. 연구 대상군들은 혈중 연 농도에 따라 저농도군$(0<PbB<=20{\mu}g/dl,\;n=12)$, 중간농도군(20<PbB<=40, n=34), 고농도군$(40<PbB<=80{\mu}g/dl,\;n=13)$으로 분류하였다. 숫자 암기 중 역순 숫자 부호 짝짓기, Benton Visual Retention에서 고농도군과 중간농도군이 저농도군에 비하여 유의하게 수행능력이 저하되었으며, 연령, 교육기간과 상관성이 가장 큰 항목은 숫자부호 짝짓기였다. 혼란변수인 연령과 교육기간을 보정한 후에도 Benton Visual Retention에서 여전히 고농도군과 중간농도군에서 저농도군에 비하여 유의한 감소를 보였다. 그러나 고농도군과 중간농도군의 비교에서는 통계학적으로 유의한 차이를 보인 항목은 없었다. 신경행동변화와 관련된 연의 영향을 명확히 하기 위해서는 근로자의 취업시부터의 정확한 개인별 폭로력과 혈중 연 농도뿐만 아니라 통합된 연 흡수 척도들의 추적과 함께 신경행동검사가 시행되어야 할 것이다. To evaluate the neurobehavioral effects of blood lead, we performed NCTB (Neurobehavioral Core Test Battery) on 59 men who were exposed to lead occupationally. Performance on the tests was studied in relation to three ranges of blood lead $(low,\;0<PbB<=20{\mu}g/dl,\;n=12;\;medium,\;20<PbB<=40{\mu}g/dl,\;n=34;\;and\;high,\;40(PbB<80{\mu}g/dl,\;n=13)$. Workers with high and medium blood lead concentrations showed poorer performances on digit span backward, digit symbol and Benton Visual Retention. After adjustment for age and education, high and medium group showed significantly impaired performance on Benton visual retention and slightly impaired performance on digit span backward. But it showed no different performance on tests between high and medium blood lead group.

정상 소아들의 혈중 연 농도와 지능지수와의 관련성

이덕희,이용환,김진하,박인근,한태영,장세한,Lee, Duk-Hee,Lee, Yong-Hwan,Kim, Jin-Ha,Park, In-Geun,Han, Tae-Young,Jang, She-Han 대한예방의학회 1995 Journal of Preventive Medicine and Public Health Vol.28 No.2

The association between blood lead of children and Intelligent Quotient(I.Q) was investigated in a sample of 100 boys and girls aged $6\sim8$ years from one primary school within an industrial area of Pusan. The trained undergraduates in school of public health administered an 1.0. test one by one. Parents answered a questionnaire on demographic, perinatal and socioeconomic variables. Atomic Absorbtion Spectrophotometer was used to determine blood lead levels. The geometric mean of blood lead value was $7.99{\mu}g/dl$. In total children, there was no significant relationship between blood lead level and I.Q. But in the children who were born of gestational age of less than 38 weeks, children with higher levels of blood lead performed more poorly on I.Q test with correlation coefficient from -0.68 to -0.71. But, the children who were born of gestational age of 38 weeks and more were same as total children. These results suggest that exposure to low levels of lead in the children who were born premature probably may result in impaired intelligent development. But, We think that more profound study should be performed with sufficient numbers of subjects.