Incheon Area Research Articles

Prevalence and Characteristics of Major Vascular Diseases of Elderly Men in the Incheon Area

Purpose: As Korea is an aging society (WHO classification) and projected to be an aged society in 10 years, peripheral vascular diseases (PVD) in the elderly population has emerged as an important social and medical issue. But their prevalence was rarely reported in Korea. The purpose of this study is to define the prevalence of carotid artery stenosis (CAS), abdominal aortic aneurysm (AAA), and peripheral arterial occlusive disease (PAOD) of lower limb in the Incheon area. Methods: Elderly men (≥65 years) were referred randomly from the Incheon Federation of Korean Senior Citizens’ Association (from Nov 2008 to Sep 2009) to Inha Univeristy Hospital, Incheon, Korea for a PVD screening program. The subjects were screened for CAS and AAA by duplex. CAS was defined as ≥50% internal CAS and AAA as ≥3 ㎝ aortic diameter in minor axis. PAOD of lower limb was screened by measurement of ankle brachial index (ABI); ABI of ≤0.9 was considered abnormal. Results: 1150 subjects were screened including 103 octogenarians (9.0%). Mean age was 72.3±0.2 years. Combined conditions were hypertension (54.3%), diabetes mellitus (25.2%), coronary artery disease (15.6%), dyslipidemia (18.9%), obesity (31.1%) and smoking history (71.7%). CAS was detected in 7.7% (89/1,150) subjects. Thirty-three (2.9%) were diagnosed with AAA. PAOD was detected in 50 subjects (4.4%). Conclusion: Prevalence of PVD in Korea is not lower compared to that of western countries, especially the USA and the UK. A nationwide program for timely detection and treatment for PVD should be developed.

Effect of alcohol on the development of hepatocellular carcinoma in patients with hepatitis B virus-related cirrhosis: a cross-sectional case-control study

Background/AimsWhether alcohol intake increases the risk of hepatocellular carcinoma (HCC) in patients with chronic hepatitis B virus (HBV) infection remains controversial. The aim of this study was to determine the effect of alcohol intake on the development of HCC.MethodsBetween January 2006 and August 2008, 146 patients with an initial diagnosis of HCC who were hospitalized in 3 major hospitals in the Incheon area were enrolled as cases. Another 146 cirrhotic patients, who matched the cases by age and sex, were enrolled as controls. All cases and controls were HBsAg positive, and had a history of lifetime alcohol intake.ResultsThe cases and controls were aged 53±8 and 53±9 years (mean±SD), respectively, with each group comprising 118 males and 28 females. The basal laboratory data, distribution of Child-Pugh class, HBeAg positivity (31.5% vs. 37.7%), HBV DNA level (5.74±2.35 vs. 5.98±2.29 log10 copies/mL), and proportion with a lifetime alcohol intake of more than 292 kg (30.8% vs. 34.9%) did not differ between cases and controls. The cumulative alcohol intake and the proportion of heavy drinkers did not differ between the two groups in male patients.ConclusionsAlcohol intake might not increase the risk of HCC in patients with HBV infection.

연안 해역에서 분리한 Vibrio parahaemolyticus에 대한 유기산의 증식억제 효과

This study was carried out to investigate the distribution of V. parahaemolyticus in Incheon adjacent sea, and anti-microbial effect on growth of V. parahaemolyticus in organic acid. The detected strains were compared for geography, months and sample types. V. parahaemolyticus was detected form 28.5 percent of 287 samples collected from Incheon area, and 34.7 percent of 91 samples collected in the months of July through September, and 24.7 percent of 279 shellfish samples respectively. The minimun inhibitory concentration(MIC) of organic acid in V. parahaemolyticus were 1,250ppm at propionic acid, citric acid and acetic acid, 2,500ppm at vanillic acid, respectively. MICs of combined treatment of acetic acid and vanillic acid, citric acid and vanillic acid, propionic acid and vanillic acid were 1,250 ppm. MICs of combined treatment of citric acid and acetic acid, propionic acid and acetic acid, propionic acid and citric acid was 12.5ppm. The antimicrobial effect of organic acid in V. parahaemolyticus was confirmed from the result of this experiment.

Prevalence of Constipation, Bowel Habits and Nutrient Intakes of College Students in Incheon Area

This study was conducted to estimate the prevalence of constipation, bowel habits and nutrient intakes of college students. The subjects were 353 college students (166 males and 187 females) aged 19 to 29 years in Incheon area. The subjects were asked about bowel habits and dietary intake using questionnaires during march, 2008 and the prevalence of functional constipation (FC) was based on the Rome II criteria. The prevalence of FC in male and female students was 12.7% and 28.9%, respectively. The prevalence of self-reported constipation in male and female students was 12.0% and 36.9%, respectively. Both were higher in female students compared to male students. Among the subjects that have self-reported constipation, proportions of FC were 35.0% in male students and 55.1% in female students. Of subjects that did not self-reported constipation, the proportions of FC were 9.6% in male students and 13.6% in female students. Over 90% of respondents that self-reported constipation in male students, had neither visited a hospital and nor used laxatives or functional foods for constipation relief. Seventy five point three percent of male students, and 40.1% of female students, had a defecation frequency of over 5 times per week (p < 0.001). Ratios intaken under the estimated average requirement (EAR) of Vit A, Vit C, folic acid and Ca were over the 50% regardless of functional constipation. Mean daily consumption of total dietary fiber was 15.0 g/day in male students and 13.5 g/day in female students. According to these results, both functional constipation and self-reported constipation are more frequent in female college students and further studies are required in case-control study and related to psychological factors as well as nutrients to relieve of constipation. (Korean J Nutr 2009; 42(8): 702 ~ 713)

수치모델링을 이용한 서해안 지역에서의 해륙풍 영향권 산정에 관한 연구

The regional air movement in a coastal area is generated by the different heat capacities of sea and land sides, which is called sea/land breeze. In the west coast area, the local air quality is significantly influenced by this sea/land breeze. In this study, the mathematical model is proposed to estimate the effective area of sea/land breeze. A commercial air model, that is suggested as an alternative air model by USEPA, is introduced to simulate the mechanism of sea/land breeze generation. From this study, it is confirmed that the numerical approach proposed in this study is reliable to predict the effective area of sea breeze in a coastal area. It implies that the current application of common air model needs to be carefully reviewed especially when dealing with a coastal air quality issue. It is also found that the sea breeze in Incheon area has the impact in the range of approximately 24 km in-land side, so-called penetration length.

여자 중.고등학생의 화운데이션 교육과 착용실태에 관한 연구

The education status of the body make-up foundations for teenage girls was evaluated and their purchase & wearing behaviors and the level of satisfaction were studied to analyze the relationship between education level and wearing satisfaction. The research was conducted for 728 middle and high school girls in Seoul and Incheon area, by the questionnaire method. The collected data was analyzed by SPSS. Frequency, percentage, average, standard deviation, <TEX>$X^2$</TEX>-test, t-test, and ANOVA were performed. Among various foundation education contents learned in home economics class, most students were aware of the kind of underwear, the fiber content & management methods, laundry methods, and the kind and function of foundations. While more than 80% of all respondents didn't know about the size of foundations. As a results, most of students realized the influence of foundation wearing on the human body, selection methods for brassiere and girdle according to form and age, and matters to be attended to wear brassiere and girdle. The education standard, practical use, and awareness degree on the side effects, and the need for foundation education were positively related each other. Therefore, it is very important to educate teenage girls in the fast growth period the right selection of foundation and its effect on body health, in order to provide normal growth and healthy body.

경인지역 대학생의 환경과 친환경농산물에 대한 인식

Majors in Home-Economics Education, Graduate School of Education, Inha University, Incheon 402-751, Korea AbstractThis study was performed in order to investigate perceptions on environment and environment-friendly agricultural products, knowledge level and opinion about these products. The subjects were 387 college students in Seoul and Incheon area. This survey was conducted by self-administered questionnaire. The statistical analysis was conducted using the SPSS 12.0 program. Male subjects were 53.2% and female subjects were 46.8%. 52.9% of the subjects have knowledge about environment-friendly agricultural products. Also 50.9% of the subjects knew certification label of environment-friendly agricultural products whereas 13.4% knew certification authority of environment-friendly agricultural products. The average scores of 'image of environ-ment-friendly agricultural products', 'attitude towards environment', 'attitude towards agrichemical' were 3.84±0.68, ±3.51±0.73 and 3.58 0.87, respectively. In regard to 'image of environment- friendly agricultural products', the scores were significantly affected by gender (p<0.05), self-recognition of health status (p<0.05) and self-knowledge about environment-friendly agricultural products (p<0.001). In regard to 'attitude towards environment', the scores were significantly affected by self-recognition of health status (p<0.05), self-knowl-edge about environment-friendly agricultural products (p<0.001), and information about environment friendly agricultural products certificate authority (p<0.01). In regard to 'attitude towards agrichemical', the scores were significantly affected by gender (p<0.001), self-recognition of health status (p<0.05), supplements for health (p<0.05) and self-knowledge about environment-friendly agricultural products (p<0.001). Therefore, various education programs on environment-friendly agricultural products are necessary for college students to make right food choices.Key words: perception, environment, environment-friendly agricultural products, college students

The Status and Characteristics of Industrial Accidents for Migrant Workers in Korea Compared with Native Workers

Objectives: To analyze the status and characteristics of the industrial accidents of migrant workers with comparison to those of native workers. Methods: The industrial accident rate of migrant workers was estimated by the annual number of industrial accidents divided by the total number of annual labor population multiplied by the annual admission rate of industrial accident insurance. The characteristics of industrial accidents for total migrant workers were assessed and compared with those of total native workers (from 2004 to 2006). In addition, we compared the industrial accidental characteristics of the 7,210 native workers and the 458 migrant workers employed in the Incheon area who received compensation from the industrial accident insurance in 2006. Results: In 2004, 2005 and 2006, the total annual industrial accident rates of the migrant workers were 0.93%, 0.90%, and 1.06%, the injury accident rates were 0.90%, 0.86%, and 1.00%, the number of injury deaths per 10,000 persons were 2.29, 2.22, and 2.39, and the disease rates were 0.011%, 0.014%, and 0.027%, respectively. As for the cause of injury, rolled/jammed and cutting-type injuries were more prevalent in the migrant workers. With the standardization of job category, industry size and work tenure, the rolled/jammed-type injury was still significantly more prevalent in the migrant workers. Conclusions: Even considering the exclusion of the possible missing numbers of the submission of industrial accident cases, and the numbers of workplaces not registered for industrial accident insurance, the publicized statistics confirm the higher industrial accident rate of migrant workers compared to native workers. Especially, the injury death rate was 2.2 times higher for migrant workers than for native workers in 2006. In addition, the remarkably lower occupational disease rate of the migrant workers compared to that of the native workers, suggested that numerous cases of disease were not reported. Finally, the lack of communication and former education that usually lead to the most prevalent injury type, i.e., the rolled/jammed type, supported our conclusion that the migrant workers were in need of more education regarding workplace safety.

미취학 아동의 사교육에 대한 경제적 부담감과 관련요인 분석

The purpose of this study is to examine current situations about and factors related to expenditures of private education among pre-school children and to provide policy implications useful for future pre-school children education. The subjects of the study were parents of pre-school children under seven years of age, who lived in Seoul and Incheon area. The survey was conducted using parent questionnaire. The major findings of the study are: First, 86.8% of parents of pre-school children use private education and the average expenditure on it was 154, 446 won. Second, major factors determining their private education expenditure are educational level of parents, parents' job characteristics, household income, and region. Third, the most important reason for using private education among parents is to improve and excel in academic performance of their children. Forth, the higher the parents' expected returns from private education are, the higher the expenditure level of private education is. Fitth, the results of the logistic regressions showed that parents' attitudes toward private education was the most important factor in determining household economic burden associated with private education. The odds were 5 times greater for the parent group with strong desire for private education than for the parent group without it and 1.2 times greater for the parent group with high-expected returns from private education than the parent group without it. In conclusion, systematic, universal educational policies need to be developed to provide and support all the parents with pre-school children, given that their current economic burden is substantial. By providing such support, we can help parents focus on public education. This study examining current situations about and determining factors related to private education expenditures among pre-school children collected data limiting only Seoul and Inchoen area, therefore, future studies need to include data collected nationwide for generalizability of the findings. As well, development of more elaborated survey instruments and analytical methods would advance our understanding in the field.

인천광역시 유통 농산물의 최근 3년간의 잔류농약 실태 조사연구

2003년부터 2005년까지의 인천광역시에서 유통되고 있는 농산물 총 10,431건의 잔류농약검사를 실시한 결과, 전체수거건수에 대한 부적합비율은 2003년, 2004년, 2005년에 각각 1.3%, 0.9%, 1.2%로 나타났다. 특이한 점은 2005년도에는 대형일반유통업체의 수거비율에 대한 부적합비율의 비가 3.1로서 두 도매시장의 비인 0.9보다 큰 비를 나타냈다. 이 사실은 2005년도의 대형일반유통업체 수거건수가 2003년, 2004년보다 1/5가량 줄었으나 대형일반유통업체의 부적합이 도매시장의 부적합보다 더 많은 빈도로 나타났다고 사료된다. 생산지별 부적합 현황은 2003년과 2004년에는 경기도와 인천시가 전체의 70% 이상을 나타냈으나 2005년도에는 경기도와 인천시가 각각 25.6%와 23.3%를 나타냈다. 2005년도에는 광주, 울산, 충북이 새롭게 나타났다. 최근 3년 동안 부적합이 가장 많이 발생한 농산물은 쑥갓으로 총 23건이었으며, 취나물, 참나물, 상추가 각각 15건, 고춧잎이 13건이었다. 쑥갓 중에 가장 많은 부적합을 나타낸 농약은 diazinon으로 23건 중 7건이 나타났다. 취나물, 참나물, 상추, 고춧잎에서 가장 많은 부적합을 나타낸 농약은 chlorpyrifos였다. 검출된 농약의 종류는 2003년부터 2005년까지 각각 12개, 17개, 32개로 증가하는 추세였고 부적합 농약의 종류도 11개, 13개, 20개로 증가하는 추세였다. 2003년부터 2005년까지 매년 검출되고 부적합이었던 농약은 chlorothalonil, chlorpyrifos, diazinon, endosulfan, procymidone 등이었다. Chlorpyrifos와 diazinon은 검출과 부적합이 해가 갈수록 감소하는 경향을 나타냈다. 그러나 chlorothalonil, endosulfan, procymidone은 2005년도에는 검출만 증가하는 경향을 나타내고 있다. This survey was done to investigate the pesticide residues on agricultural products on the markets in Incheon area from 2003 to 2005. A total of 10,431 samples was analyzed the residues by GC. The violation rates of the samples over maximum residue limits (MRLs) of pesticide residues established by Korean Food and Drug Administration (KFDA) in the survey of 2003, 2004 and 2005 were 1.3%, 0.9%, and 1.2%, respectively. The rate from the samples of 2005 surveyed in general wholesale markets was 3.1%, whereas that from agricultural wholesale market was 0.93%. Of the total violated samples, more than 70% of the rates were recorded from the samples of Gyeonggi-do and Incheon area in 2003 and 2004. However, the rates from Gyeonggi-do and Incheon in 2005 were remarkably reduced to 25.6% and 23.3%, respectively. Most commonly encountered agricultural commodity over MRLs was crown daisy. Positively detected pesticides were 12, 17 and 32 in the survey of 2003, 2004 and 2005, respectively. The pesticides detected yearly over MRLs during three years were chlorothalonil, chlorpyrifos, diazinon, endosulfan, procymidone. Decreasing tendency in detected and violated rates of the residues was observed in chlorpyrifos and diazinon, while increasing tendency in detected rates was recorded in chlorothalonil, endosulfan, procymidone.

인터넷 영양교육 참여 전국 대학생의 지역별 신체계측, 식행동 및 영양소 섭취상태에 관한 연구

본 연구에서는 인터넷을 통한 영양교육 강의를 수강하는 전국 남녀 대학생의 지역별 신체계측, 식행동, 식품섭취빈도 및 영양섭취실태를 비교하고자 설문조사를 실시였으며 조사결과는 다음과 같다. 조사대상자의 연령은 남학생 평균 23.6세, 여학생 평균 21.0세로 남학생이 여학생에 비해 높지만 지역별 차이는 없었다. 남학생의 평균신장과 체중은 제7차 한국인 영양권장량에 제시되어 있는 20～29세 남녀 성인의 표준신장과 체중에 비하여 다소 높은 경향을 보였고, 여학생은 평균신장은 다소 높은 반면, 평균체중은 낮은 경향을 보였다. 식사의 규칙성에 관해 남학생의 경우 서울 48.0%, 인천 52.1%, 충청지역 59.1%, 경상지역 66.7%가 불규칙한 것으로 나타나 지역별 차이를 보였다. 여학생은 녹황색채소류의 섭취를 일주일에 적어도 6～7회 섭취한다고 응답한 경우가 서울 23.2%, 인천 23.8%, 충청지역 15.8%, 경상지역 12.1%로 서울, 인천지역의 섭취빈도가 유의적으로 높았으나 전반적으로 녹황색 채소류 섭취빈도가 매우 낮음을 알 수 있었다. 남학생의 경우 비타민 B₁ 섭취가 충청지역, 경상 지역 대학생이 다른 지역에 비해 유의적으로 가장 높게 섭취하는 것으로 나타났으며, 나이아신의 경우 서울지역이 인천지역에 비해 유의적으로 높은 것으로 조사되었으나 전반적으로 보았을 때 남학생들의 나이아신 섭취량은 지역에 상관없이 모두 권장량보다 낮게 섭취하는 것으로 나타났다. 여학생의 경우 비타민 B2의 경우 충청지역 대학생들이 다른 지역에 비해 유의적으로 높은 섭취를 보였으며 특히 충청지역을 제외한 나머지 지역의 섭취량은 권장량보다 낮은 것으로 나타났다. 칼슘 섭취에 있어 인천지역 대학생들이 다른 지역에 비해 유의적으로 높은 섭취를 보였으나 모든 지역 여학생들의 칼슘 뿐 아니라 철분 섭취량은 권장량의 70% 수준으로 매우 낮은 것으로 조사되었다. 이상의 결과로 볼 때 인터넷을 통해 영양교육 강의를 수강하는 전국의 대학생들의 식품 섭취빈도 및 영양섭취실태는 지역별 차이를 보였으나 대부분의 대학생들이 지역에 상관없이 불규칙적인 식습관을 보이고 있으며 에너지, 비타민 B₁, 비타민 B₂, 철분 및 칼슘 등의 영양소에 있어 한국인 영양권장량보다 낮게 섭취하는 것으로 나타났다. 그러므로 대학생 시기의 올바른 식습관의 확립 및 영양밀도가 높은 식품섭취를 통한 건강증진 및 중ㆍ장년기 질병예방을 위하여 지속적으로 체계적인 영양교육이 필요한 것으로 사료된다.

Leisure Port Development in the Incheon Area: Concepts and Benchmarks

In concert with an ambitious national agenda that emphasizes free trade and globalization, lncheon Metropolitan City is taking the first steps toward reinventing itself to become a twenty-first century “Pentaport” with integrated Seaport, Airport, Technoport, Business Port, and Leisure Port components. The lncheon Pentaport transformation-projected to be complete by 2020-will entail significant industrial, sociological, and institutional modification. Leisure Port objectives can be achieved through responsible planning attuned to the ideal of sustainable development and by empirical studies of lncheon tourism and leisure dynamics. International benchmarks of leisure port success are found in Sydney, Australia; Vancouver, Canada; and San Diego, USA, among seven other cosmopolitan cities. Growth estimations for coastal ferry passengers; beach use; recreational vessels and yachts in the lncheon region are encouraging. lncheon Leisure Port development of ten amenity destinations will require equal and multidisciplinary attention to questions of tourism design and tourism impacts. Important issues will concern environmental quality, clean shipping practices, the proper balance of modem and traditional amenities and attractions, trade-offs of cultural homogeneity and cultural diversity, and creative destination branding and marketing, among others.

Positive Rate of HBsAg in School Children in Incheon Area

Positive Rate of HBsAg in School Children in Incheon Area