울산지역 어린이들의 혈중 연, 요중 비소 및 카드뮴 농도 변화추이 - 3년 추적조사

유철인,이지호,이헌,김양호,이충렬,Yoo, Cheol-In,Lee, Ji-Ho,Lee, Hun,Kim, Yang-Ho,Lee, Choong-Ryeol 대한예방의학회 2001 예방의학회지 Vol.34 No.2

Objectives : To obtain basic data on blood lead level and urinary level of arsenic and cadmium of children living near a petrochemical estate and a suburban area in Ulsan, Korea and to observe the trend of the changes. In the level of these metals in these children. Methods : The study subjects comprised 626 children living near a petrochemical estate and 299 children living in a suburban area of Ulsan. We analyzed the level of lead, arsenic and cadmium using atomic absorption spectrometer. Results : The mean levels of blood lead in children living near the petrochemical estate were $5.25{\mu}g/dl,\;5.24{\mu}g/dl,\;and\;7.24{\mu}g/dl$, and in the years 1997, 1999, and 2000, respectively, whereas those of children living in the suburban area were $3.81{\mu}g/dl,\;4.75{\mu}g/dl,\;and\;7.19{\mu}g/dl$ respectively. The mean levels of urinary arsenic in children living near the petrochemical estate were $4.57{\mu}g/g$ creatinine, $4.78{\mu}g/g$ creatinine, and $6.02{\mu}g/g$ creatinine in the year 1997, 1999, and 2000 respectively, whereas those of children living in suburban area were $2.35{\mu}g/g$ creatinine, $4.75{\mu}g/g$ creatinine, and $7.07{\mu}g/g$ creatinine, respectively. The mean levels of urinary cadmium in children living near the petrochemical estate were $1.15{\mu}g/g$ creatinine, $1.05{\mu}g/g$ creatinine, and $1.71{\mu}g/g$ creatinine in the year 1997, 1999, and 2000, respectively, whereas those of the children living in the suburban area were $0.74{\mu}g/g$ creatinine, $1.29{\mu}g/g$ creatinine, and $1.48{\mu}g/g$ creatinine, respectively. There were increasing trends in the level of blood lead, urinary arsenic and cadmium of children in Ulsan, and the differences in the level of these metals were disappearing between the children living in other areas year by year. Conclusions : These results suggest that the amount of exposure to lead, arsenic, and cadmium is increasing from year to year, and there is a need for periodic biological and atmospheric monitoring of these metals in Ulsan.

EQ-5D를 이용한 일개 광역시 성인의 건강관련 삶의 질 측정

조민우 ( Min Woo Jo ),이상일 ( Sang Il Lee ),길선령 ( Seol Ryoung Kil ),이지호 ( Ji Ho Lee ),강위창 ( Wee Chang Kang ),손혜숙 ( Hae Sook Sohn ),유철인 ( Cheol In Yoo ) 한국보건행정학회 2008 보건행정학회지 Vol.18 No.3

Measurements of health related quality of life can be used to compare patients with specific conditions to average individuals in the general population in a similar age and gender group. However there are few data available regarding health related quality of life for the general population of Korea. Therefore, this study was conducted to examine the validity of the Korean version of EQ-5D and to measure the health related quality of life of the general adult population in a metropolitan city. The survey was cross-sectional and employed a stratified and multistage sampling design through 100 examination sites in 5 districts of Ulsan. A total of 12,644 individuals from 4,112 households participated in the survey. Of these, we analyzed data from 8,068 adults who were over 19 years old and completed the EQ-5D. To examine the validity of the questionnaire, the differences in 5 dimensions and the EQ-5Dindex were analyzed with regard to demographic and socioeconomic factors such as sex, age, income, and education. In addition, visual analogue scales (VAS) were used to evaluate the overall health related quality of life issues of the respondents. The level of health related quality of life of the general adult population was then compared with the results from the third Korean National Health and Nutrition Examination Survey and other countries. There were a small number of people with problems related tomobility, self-care, and usual activity. In addition, many people complained ofpain/discomfort and anxiety/depression. The complaint rate in each dimension, VAS, and EQ-5Dindex indicated relatively better states for males, the younger group, the higher income group, and the higher education group. In addition, the level of health related quality of life of the general population of Ulsan was relatively higher than that of Koreans nationwide as well as the populations of other countries. EQ-5D provided a valid measure of the health-related quality of life of the general adult population. In addition, the results of a survey of Ulsan revealed that the quality of life of its population is better than that of the overall population of Korea and of the populations of other countries.

중학생의 비만율 변화 및 대사증후군 발생 위험요소와의 상관관계

최순호(Choi, Soon-Ho),신송우(Shin, Song-Woo),유철인(Yoo, Cheol-In) 한국산학기술학회 2012 한국산학기술학회논문지 Vol.13 No.11

본 연구는 최근 울산 지역 중학생의 비만율 변화와 대사증후군 발생위험 요소들의 상관관계를 파악하여 학 교건강증진사업의 기초자료를 제공하기 위하여 수행되었다. 연구를 위하여 2007년부터 2011년까지 ‘인구보건복지협 회 울산지회’에서 실시한 울산시 관내 중학교 2학년생에 대한 건강검진에 참여한 58,298명의 자료를 수집 분석하였 다. 울산지역 중학교 2학년생의 비만율의 변화는 조사 대상 전체와 여학생에 있어서는 2007년부터 2010년까지 줄고 있다가 2011년 다시 증가하였다. 남학생은 2008년에 비만율이 가장 높았고 2010년에 가장 낮았다. 모든 연도에서 남 학생에서 여학생보다 과체중과 비만 유병률이 모두 통계적으로 유의하게 높았다. 혈압 항목을 제외한 4개 항목 만으 로서의 판정에서 전체 학생의 대사증후군 유병률은 0.58%였으며 저체중군은 0%, 정상군은 0.01%, 과체중군은 0.31%, 비만군에서는 4.53%로 비만도가 증가할수록 대사증후군 유병률은 급격히 증가하였다. 전체 학생 중 대사증후 군 진단항목별 유병률은 고중성지방혈증이 36.58%로 가장 높았고 다음이 저HDL 6.47%, 복부비만 3.72%, 고혈당 0.47% 순으로 나타났다. 비만군의 경우 대사증후군 진단항목 모두에 있어 타군에 비해 통계적으로 유의하게 높았다 (P<0.05). 본 연구에서 나타난 2007년부터의 비만율의 감소추세를 이어가기 위해서는 학교에서 학생들을 대상으로 보다 다 양한 비만예방 프로그램을 개발하여 지속적으로 실시해 나가는 것이 필요하다고 생각된다. 2011년의 비만도 증가에 대한 추가적인 원인 분석이 이루어진다면 보다 체계적인 학교보건정책 수립에 도움이 될 것이다. The purpose of this study was to provide fundamental materials for improving school health promotion programs by investigating the relationships between the change in obesity rate and risk factors of metabolic syndrome among middle school students in Ulsan. We analyzed the routine health check-up data in 58,298 2nd-year middle school students in Ulsan, which conducted by the Planned Population Federation of Korea from 2007 to 2011. The overall and girls obesity rates gradually decreased throughout the first four years but increased again in 2011. The boys obesity rates were highest in 2008 and lowest in 2010. Throughout the research years, the incidence rates of over-weight and obesity were statistically significantly higher in boys compared to girls(P<0.05). Prevalence rates of the metabolic syndrome, assessed with the modified Cook criteria except high blood pressure, were 0.58%, 0%, 0.01%, 0.31% and 4.53%, respectively in total, low, normal, over-weight, and obese groups. It indicates that the prevalence of metabolic syndrome is increasing and directly related to the obesity rate among adolescents. Hypertriglyceridemia was the most common component (36.58%) of the metabolic syndrome among the middles school students followed by low HDL cholesterol (6.47%), abdominal obesity (3.72%), and high blood sugar (0.47%). Prevalence of the various components of the metabolic syndrome were significantly higher in the obese group compared to other groups. In this study we observed the decrease in obesity rates between 2007 and 2010, and developing obesity prevention programs is essential in order to maintain the trend. Additional study should be necessary to find the cause of increase of obesity rate in 2011 and so to create more effective school health promotion programmes.

울산공단지역 초등학생들의 혈중 연농도에 관한 연구

유철인,이지호,이충렬,김성률,이선호,Yoo, Cheol-In,Lee, Ji-Ho,Lee, Choong-Ryeol,Kim, Sung-Ryul,Lee, Seon-Ho 대한예방의학회 1998 Journal of Preventive Medicine and Public Health Vol.31 No.2

울산시 초등학교 학생들의 연 폭로에 관한 기초자료를 얻고, 공단지역과 교외지역의 환경적 차이에 따라 혈중 연농도에 차이가 있는지를 알기위하여 공단 지역과 교외지역의 초등학생 448명을 대상으로 이들의 혈중 연농도를 조사하여 다음과 같은 결과를 얻었다. 1. 전체 초등학생들의 평균 혈중 연농도는 $4.90{\mu}g/d\ell$로 나타나 현재 소아들에서 허용가능한 혈중 연농도인 $10{\mu}g/d\ell$보다 낮았으며, 남아가 여아보다 높았으나 통계학적인 유의성은 없었다(P=0.13). 2. 공단지역의 초등학생들의 혈중 연농도는 $5.26{\mu}g/d\ell$로 교외지역의 $3.81{\mu}g/d\ell$보다 통계적으로 유의하게 높았다(P<0.001). 이상의 결과로 보아 울산지역의 초등학생들의 연농도는 허용가능한 혈중 연농도인 $10{\mu}g/d\ell$미만이었으나, 공단지역의 초등학생들은 교외지역의 초등학생들 보다 상대적으로 높은 혈중 연농도를 가지고 있어 이에 대한 지속적인 연구조사가 필요한 것으로 사료된다. We conducted this study to obtain basic data of lead concentrations in children of Ulsan industrial area and to evaluate the difference in blood lead levels between industrial area and suburban area. The study subjects were composed of 348 school children residing in industrial area and 100 school children of suburban area. There is no difference in age and sex distribution of study participants between industrial and suburban area. The obtained results were as follows; 1. The geometric means of blood lead levels of study participants were $4.90{\mu}g/d\ell$, which is lower than current acceptable value $10{\mu}g/d\ell$. 2. The children residing in industrial area had the higher blood lead levels$(5.26{\mu}g/d\ell)$ than suburban children$(3.81{\mu}g/d\ell)$ with statistical significance(P<0.001).

울산 석유화학공단 인근 어린이들의 호흡기 건강상태

유철인,이지호,김양호,이충렬,Yoo, Cheol-In,Lee, Ji-Ho,Kim, Yang-Ho,Lee, Choong-Ryeol 대한예방의학회 2000 예방의학회지 Vol.33 No.2

울산시에서 대기 오염 정도가 서로 다른 석유화학공단 인근지역의 초등학생들과 교외지역의 초등학생들을 대상으로 1999년 4월 14일부터 20일까지 공단지역의 A초등학생 51명(남자 27명, 여자 24명), B초등학생 99명(남자 49명, 여자 50명) 및 교외지역의 C초등학생 100명(남자53명, 여자 47명)을 대상으로 의한 호흡기계 증상 유병률 등을 파악하는 설문조사, 폐기능 검사, 흉부 방사선 검사 등을 조사하였으며 그 결과는 다음과 같다. 1. 호흡기계 증상 유병률 조사에서 석유화학공단 인근 A초등학생과 B초등학생은 교외지역의 C초등학생에 비하여 '만성기침', '운동시 호흡곤란' 같은 호흡기계 증상 유병률이 높았다. 2. 조사 초등학생의 폐기능 검사는 연령, 성별로 구분한 다음 폐기능에 영향을 주는 신장, 체중 등의 공변인을 조정 후 비교한 결과 공단지역의 11세 A초등학생과 B초등학생은 교외지역의 C초등학생에 비하여 FVC 및 FEV1이 낮았다. 이상과 같은 결과로 볼 때 공단지역에 거주하는 어린이는 대기오염 등 환경적요인에 호흡기계증상 유병률, 폐기능 등에 영향을 받은 것으로 추정되며 장기적으로 공단지 역에 거주하는 초등학생들에 대하여 호흡기계증상 유병률, 폐기능 검사 등을 주기적으로 전향적 연구가 필요한 것으로 생각되며 또한 호흡기질환의 발생률 및 유병률 등을 면밀히 관찰하는 추가적 연구도 필요한 것으로 사료된다. Objectives : To evaluate the effect of low-level exposure of air pollutants on the respiratory tract of the children living near the petrochemical estate in Ulsan. Methods : The study design was cross-sectional, and the study subjects consisted of 150 children(76 boys, 74 girls) living near the petrochemical estate and 100 children(53 boys, 47 girls) living in a suburban area. We investigated respiratory health using self-administered questionnaires(ATS-DLD-78) , radiological examination, and pulmonary function test such as FVC and FEV1. Results : There were higher prevalence rates of respiratory symptoms in the children living near the petrochemical estate than the children living in a suburban area. And the results of FVC and FEV1 of 11-years old children living near the petrochemical estate were lower than those of the children living in a suburban area. Conclusions : Chronic exposure of low-level air pollutants would affect respiratory health of the children. Therefore, further a longitudinal study of respiratory health will be needed for children living near the petrochemical estate in Ulsan.

용접 근로자의 혈액상 변화

유철인,이지호,강정학,이헌,이충렬,Yoo, Cheol-In,Lee, Ji-Ho,Kang, Jeong-Hak,Lee, Hun,Lee, Choong-Ryeol 대한예방의학회 1999 Journal of Preventive Medicine and Public Health Vol.32 No.2

Objectives: To ascertain whether some result of hematological examination could be as reference data for health management of welders. Method: The authors conducted the hematological examination of 1,018 welders and 531 control workers of a shipbuilding industry in Ulsan using automatic blood analyzer. Results: The WBC count of welders was lower than that of control on controlling the age and the duration of employment, but changes of other blood cells were not observed. Conclusion: We could use the results of hematological examination such as WBC counts as an indicator for subtle changes of health status of welders.

울산 지역 일반주민의 혈증 납 농도 감소: 2000-2006년 추적조사

이충렬 ( Choong Ryeol Lee ),김양호 ( Yang Ho Kim ),심창선 ( Chang Sun Sim ),이지호 ( Ji Ho Lee ),유철인 ( Cheol In Yoo ),이헌 ( Hun Lee ) 대한보건협회 2008 대한보건연구 Vol.34 No.2

급성 유기주석중독 후유증으로 남은 소뇌장애

김석환(Suk Hwan Kim),유철인(Cheol In Yoo),권지현(Jee Hyun Kwon),배진호(Jin Ho Bae),원영철(Young Cheol Weon),김양호(Yangho Kim) 대한직업환경의학회 2009 대한직업환경의학회지 Vol.21 No.3

청력상한치를 이용한 복합유기용제의 이독성 연구

이지호(Ji Ho Lee),유철인(Cheol In Yoo),이충렬(Choong Ryeol Lee),이헌(Hun Lee),최영희(Young Hee Choi),김남정(Nam Jung Kim),김양호(Yangho Kim) 대한직업환경의학회 2004 대한직업환경의학회지 Vol.16 No.4

수부의 국소진동 노출이 청각에 미치는 영향

윤재국(Jae-Kook Yoon),유철인(Cheol-In Yoo),이지호(Ji-Ho Lee) 대한직업환경의학회 2011 대한직업환경의학회지 Vol.23 No.1