• 제목/요약/키워드: 30 years

검색결과 9,351건 처리시간 0.039초

국내에서 2005년에 실시한 연령별 A형 간염 바이러스 항체 보유율 (Age Related Prevalence of Antibodies to Hepatitis A Virus, Performed in Korea in 2005)

  • 최혜진;이수영;마상혁;김종현;허재균;강진한
    • Pediatric Infection and Vaccine
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    • 제12권2호
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    • pp.186-194
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    • 2005
  • 목 적 : A형 간염의 발생이 2000년대부터는 1990년대에 청소년과 젊은 성인에서 발생이 높았던 것과는 달리 20대부터 30대 초반의 젊은 성인 환자가 증가되는 추세를 보이며 소규모이기는 하나 집단적 돌발유행이 발생되는 변화가 있으며, 더불어 1990년대에 시행되었던 A형 간염 항체 보유율 역학연구가 2000년대에 와서 이루어지지 않고 있는 실정이다. 이런 상황에서 저자들은 최근 국내 A형 간염의 역학적 변화의 원인분석과 이에 따른 예방대책의 기초 자료로 활용하기 위하여 연령별 A형 간염 항체 보유율 역학연구를 실시하게 되었다. 방 법 : 2005년 1월부터 6월까지 가톨릭대학교 성모자애병원 및 마산파티마병원에 내원한 외래 방문자, 건강 검진자 및 입원 환자에서 과거에 A형 간염에 이환된 병력과 가족 내 발생이 없고 A형 간염 백신 접종력이 없는 출생 후부터 50세까지 연령의 소아와 성인 1,301명(남자 655명, 여자 646명)을 대상으로 A형 간염 항체 검사를 실시하였다. 동시에 성별비교와 두 지역간의 통계적 유의성을 검토하였다. 결 과 : 항체 보유율은 1세 미만에서 61.1%, 1세 부터 5세의 연령군에서 30.5%, 6세에서 10세 사이 연령군에서 14.6%, 11세에서 15세 사이 연령군에서 1.7%, 16세에서 20세 사이 연령군에서 6.5%, 21세에서 30세 사이 연령군에서 36.6%, 31세에서 40세 사이 연령군에서 77.5%, 41세에서 50세 사이 연령군에서 99.8%의 항체 보유율을 확인하였다. 그리고 연령군에서 남녀간의 통계적 유의성은 없었으나, 두 지역에서 6세부터 10세 사이 연령군에서 통계적으로 유의한 차이를 확인하였다. 결 론 : 16세에서 30세 사이 연령의 항체 보유율이 1990년대에 비해 현저히 낮아진 것을 확인하였고 이로 인하여 이들 연령에서 A형 간염 발생이 지속적으로 높아질 것과 집단적 돌발유행의 가능성이 있어 향후에도 이와 관련된 광범위 역학연구가 필요하다. 더불어 지역간에도 연령에 따른 항체 보유율이 달라 지역간 역학 비교연구가 필요하다.

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Long-term Fistula Formation Due to Retained Bullet in Lumbar Spine after Gunshot Injury

  • Jeon, Se-Il;Im, Soo Bin;Jeong, Je Hoon;Cha, Jang Gyu
    • Journal of Trauma and Injury
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    • 제30권2호
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    • pp.51-54
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    • 2017
  • We here report a case of long-term fistula formation due to bullet retention for 30 years in the lumbar spine after a gunshot injury, and describe its treatment. A 62-year-old male visited our hospital due to pus-like discharge from his left flank. The discharge had been present for 30 years, since his recovery from an abdominal gunshot injury. A spine radiography showed radiopaque material in the body of the third lumbar vertebra. Foreign body was removed using an anterolateral retroperitoneal approach. The postoperative course was uneventful. The patient was discharged 7 days after the operation and was followed-up for 8 months, during which time, the fistula did not reoccur. A bullet retained long term in the vertebral body may cause obstinate osteomyelitis and fistula formation. A fistula caused by a foreign body in the spine can be effectively treated by surgical removal.

한국사회경제학회 30년의 회고와 전망: 이른바 86세대의 시각 (Retrospect and Prospect : 30 Years of the Korean Association for Political Economy from the Perspective of So-called 86 Generation)

  • 류동민
    • 사회경제평론
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    • 제31권2호
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    • pp.127-141
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    • 2018
  • 이 글은 이른바 86세대의 시각에서 한국사회경제학회의 지난 30년을 회고하고 전망한다. 한국사회경제학회가 진보라는 정체성을 잃지 않으면서도 넓은 의미에서 주류경제학에 속하나 진보적 자유주의적 입장을 지닌 중견 및 소장 경제학자들과도 소통할 수 있는 공간으로서의 역할을 수행해야 함을 주장한다.

원자흡광법(原字吸光法)에 의(依)한 과수원(果樹園) 토양중(土壤中)의 동함량(銅含量) 분석(分析)에 관(關)한 연구(硏究) (Atomic Absorption Spectrophotometric Analysis of Copper In the Soil s of Orchards)

  • 박승희
    • 농업과학연구
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    • 제7권1호
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    • pp.52-58
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    • 1980
  • 농작물(農作物) 및 농경지(農耕地) 토양중(土壤中)의 유해중금속원소(有害重金屬元素)의 축적(蓄積)과 그 대책구명(對策究明)의 관(關)한 일환(一環)으로, 과수목(果樹木)(사과, 배, 감귤) 토양중(土壤中)에 축적(蓄積)된 동함량(銅含量)을 공해관계(公害關係) 공정분석법(公定分析法)으로 통용(通用)되는 원자흡광법(原字吸光法)에 의하여 주요산지별(主要産地別)(사과밭 : 대구(大邱), 예산((禮山), 충주(忠州) ; 배 밭 : 성환(成歡), 부천(富川), 양주(楊州) ; 감귤밭 : 서귀포(西歸浦)), 토심별(土深別)(0~10cm, 10~20cm 및 20~30cm), 및 수령(樹令)(경작년수(耕作年數)) 별(別)로 조사(調査)한 바 그 결과(結果)를 요약(要約)하면 다음과 같다. 1. 사과밭토양(土壤)의 경우(境遇), 수령(樹令)이 5년(年) 미만(未滿)인 때 동(銅)의 축적(蓄積)은 없었으나 10년(年) 이상(以上)부터는 오염(汚染)되기 시작(始作)하여 30년(年) 정도(程度)이면 100ppm 수준(水準)에 이르고, 50~60년(年) 정도(程度)의 토양(土壤)에서는 130~170ppm이 축적(蓄積)되었으며, 대부분(大部分) 표토(表土)(0~10cm)에 함유(含有)되고 그 오염도(汚染度)가 심(甚)하면 표토(表土)(10~20cm)까지 전이오염(轉移汚染)되나 그 정도(程度)는 매우 낮았다. 2. 배밭토양(土壤)에 있어서도 수령(樹令)이 많을수록 동(銅)의 축적량(蓄積量)은 증가(增加)되는 경향(傾向)이었고, 30년(年) 이상(以上)이면 20~30ppm 수준(水準)이었다. 지역별(地域別)로는 최고(最高) 36.8ppm으로 양주군(楊洲君)에 이어 성환(成歡), 부천(富川)의 순(順)으로 낮았고, 토심별(土深別) 수직분포(垂直分布)로는 역시(亦是) 표토(表土)에 대부분(大部分)이 집적(集積)되어 있었다. 3. 감귤밭에 있어서도 수령(樹令)에 따른 경향(傾向)은 전술(前述)한 바와 같았고, 35년(年)된 수원(樹園)의 표토(表土)에서 57ppm이 검출(檢出)되었으나, 15년(年) 미만(未滿)인 경우(境遇)에는 적용(適用)한 분석법(分析法)의 검출한계농도(檢出限界濃度)에 불과(不過)한 흔적(痕迹)만을 보였으며, 20년(年) 및 30년(年)인때 표토(表土)에 각각(各各) 23ppm 및 38ppm이 축적(蓄積)되었고, 심토(深土)에의 수직전이(垂直轉移)는 다른 과원토양(果園土壤)에 비(比)하여 적은 경향(傾向)을 나타냈다. 4. 조사지역(調査地域) 전반(全般)을 통(通)하여 살펴볼 때, 농작물(農作物)의 생육장해(生育障害)와 감수(減收)를 감안하여 외국(外國)에서 규제(規制)하고 있는 농경지(農耕地) 토양중(土壤中)의 동함량(銅含量) 허용기준농도(許容基準濃度) 125ppm(N/10-HCl 침출(浸出))에 비(比)하면 현격(懸隔)하게 미량(微量)이어서 농경상(農耕上)의 문제점(問題點)은 전혀 없다고 사료(思料)된다.

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Type Distribution of Lymphomas in Lebanon: Five-Year Single Institution Experience

  • Sader-Ghorra, Claude;Rassy, Marc;Naderi, Samah;Kourie, Hampig Raphael;Kattan, Joseph
    • Asian Pacific Journal of Cancer Prevention
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    • 제15권14호
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    • pp.5825-5828
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    • 2014
  • Background: Lymphomas represent the fifth most frequent cancer in Lebanon. However, little is known concerning epidemiologic characteristics and distribution of lymphoid neoplasms according to the 2008 WHO classification. Materials and Methods: We conducted a retrospective study of lymphoma cases diagnosed from 2008 till 2012 at $H\hat{o}tel$-Dieu de France University Hospital. Results: A total of 502 new cases of lymphoma were diagnosed at our institution during a five year period: 119 cases (24%) were Hodgkin lymphomas (HL) and 383 cases (76%) were non-Hodgkin lymphomas (NHL). HLs were equally distributed in both sexes with a mean age at diagnosis of 30 years. Among NHL, 87% (332 cases) were B cell lymphomas, 9% (34 cases) were T cell lymphomas and 4%(17 cases) were classified as precursor lymphoid neoplasms. Among B cell lymphomas, 44% (147 cases) were diffuse large B cell lymphomas (DLBCL), 20% (65 cases) follicular lymphomas and 8% (27 cases) mantle cell lymphomas. DLBCL were equally distributed in both sexes with a mean age of 58 years. Follicular lymphomas were characterized by a male predominance (57%) and a mean age of 60 years. Mantle cell lymphomas showed a pronounced male predominance (85%) with a mean age of 60 years in men and 70 years in women. Some 72% of patients having T cell lymphomas were men, with a mean age of 57 years in men and 45 years in women, while 65% of patients having precursor lymphoid neoplasms were women with a mean age of 22 years in women and 30 years in men. Conclusions: The lymphoma subtype distribution in Lebanon is unique when compared to other countries from around the world. In fact, Hodgkin and follicular lymphomas are more frequent than in most Far Eastern, European and American countries, while T-cell lymphomas and DLBCL are less frequent.

Tree-Ring Analysis for Understanding Growth of Larix kaempferi

  • Jeong-Deok JU;Chang-Seob SHIN;Jeong-Wook SEO
    • Journal of the Korean Wood Science and Technology
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    • 제51권5호
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    • pp.345-357
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    • 2023
  • The present study conducted a stem analysis to trace growth information of Japanese larch (Larix kaempferi) and predict the future changes in growth volume. For this purpose, six L. kaempferi trees over 47 years old were cut at 1-2 m intervals from a height of 0.2 m, and circular plates of 5 cm thickness were collected for stem analysis. The analysis indicated that approximately 1-8 years are required to grow up to chest height. The annual height and diameter growth increased rapidly until the trees are 15 years old and gradually decreased after 20 years. The volume of 30-year-old trees in Oegam-ri forests, which were well-managed after artificial reforestation, was 0.4837 m3, whereas that in unmanaged Singi-ri forests was 0.1956 m3. Although the volume of individual trees differed greatly depending on the forest management status, it was found that the volume increased by 1.67-1.76, 2.49, and 3.49 times at 40, 50, and 60 years age, respectively, compared to the legal harvesting age 30. Therefore, factors such as the carbon dioxide reduction effect, forest management benefits, and the condition of trees at the site should be considered before harvesting trees.

양안 개방형 자동굴절검사기를 이용한 조절반응량 검사 (Accommodative response measurement using both eyes open-view autorefractometer)

  • 심현석;이성욱;심문식;최선미;장성주
    • 한국안광학회지
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    • 제10권4호
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    • pp.323-328
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    • 2005
  • 본 연구 목적은 숙달이 필요 없이 쉽고 빠르게 조절반응량을 측정할 수 있는 양안개방형 자동굴절검사기(auto-refractometer)를 이용하여 실제 조절량을 알아보고자 하였다. 20세부터 80세 사이(mean $30.2{\pm}12.2$) 153명 306안을 대상으로 성별, 연령별, 굴절이상정도별, 난시정도별, 난시종류별로 각각 조절반응량을 비교 하였다. 연령별 비교는 20대 평균 1.15D, 30대 1.23D, 40대이상은 0.6D로 20 30대에서는 차이가 없었으나, 40대이상에서 현저히 저하되는 것으로 나타났다. 굴절이상정도별로는 원시 1.78D, 정시 1.51D, 경도근시 1.08D, 중도근시 0.72D로, 고도근시 0.643D로 근시도수가 높아질수록 줄어드는 것으로 나타났다. 난시정도별로는 무난시 1.13D로, 경도난시 1.12D, 중도난시 0.85D, 고도난시 0.83D로 난시도수가 높아질수록 줄어드는 것으로 나타났다. 성별과 난시종류별 차이는 없는 것으로 나타났다.

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농촌주민의 흡연 및 음주 실태와 이에 영향을 미치는 요인분석 (An Analysis of Determinants of Smoking and Drinking of Community people in Rural area)

  • 남철현
    • 보건교육건강증진학회지
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    • 제6권1호
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    • pp.48-59
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    • 1989
  • The study was designed. to analyse the factors effecting to smoking and drinking of community people in rural area. The study has been surveyed through interviews by trained college students for 1,846 residents who live in rural area(Eup or Myun office is located)for 20days(from 3rd. to 22M. in August, 1988) The summary and conclusions are as follows. 1. The number of answers on the questionaires was 1846. And the percent of man was 55.7 %(woman 44.3 %). Among age group 20-29 years group with 30.4 % was larger than any other group. Anaverage age of answers was 38.6 years. 2.In the period of residence, 21.5 % of the residents lived within 5 years(This group was larger than any other group). In occupations, workers in agriculture and fishing was more than other job occupants. In education, the percent of high school graduates was 44.0 %(higher than any other group) 3.The smoking rate of rural residents was 41.8 %and man's smoking rate was 76.0 % (woman's smoking rate was 7.6 %). These rates were higher than the rates in 1985 (The smoking rate of nation was 32.0 %). First of all, woman's smoking rate increased rapidly 4.As for smoking amount, in male 52.8% of smokers smoked a cigarette case (20 cigarettes) in a day, and 16.9 % of smokers smoked more than one cigarette case. In female 42.5 % of woman smokers smoked a half case in a day and the rate of non-smokers diminished to 77.8 % 5.The rate of non-smokers in 21-29 years group was higher than any other group and a smoking rate increased as an age increased. However, a smoking amount decreased as an age increased. This suggests that people are more concerning about their health as their ages increase.. 6.The smoking rate of college graduates was 58.8 %(higher than any other group) and in a smoking amount 36.4 % of college graduates, 29.8 % of high school graduates smoked more than a cigarette case in a day. This shows that people in a higher education group smoke more than those in other groups. 7.As for non-smoking rate, students, service job workers, company employees, and teachers was 54.1%, 43.4%. 40.1% and 39.5%. respectively. As for smoking rate, workers in agriculture and fishing was the highest level of all job employees. Public officers smoked less than the workers in agriculture and the smoking rate of teachers was less than that of public officers. with regard to smoking amount. above one cigarette case in a day was 39.9 % in public officers, 39.2 % workers in agriculture and fishing, 37.9 % in businessmen, 34.2 % in teachers, 31.9 % in service job employees and 31.6 % in a company employees. 8.The variables which had an effect on smoking were sex (B=.1701), job(B=.1688), education(B=.1671), age(B=.1125). These variables were significant in P<0.05 statistically. Explanatory variance level was 19% 9.The drinking rate of community residents was 61.8% and man's drinking rate was 81.7%(woman's drinking rate was 38.9%). As drinking rate 18.0%(the highest rate) of man drinkers drank 3 bottles of beer in a general drinking and 12.1% of them drank more than 10 bottles. 12.1% (the highest rate)of woman drinkers drank 2 cups of beer. The rising rate of woman's drinking of alcohol was remarkable. 10.Each non-drinking rate of age groups was 27.6% (in 20-30 years group), 28.0% (in 30-39 years group), 28.9%(in 40-49 years group) and 32,6%(in 50-59 years group), 10,7%(the highest rate) of 20-29 and 30-39 years groups drank above 3 bottles. 7.5% of 20-29 years group and 7.7% of 30-39 years group drank above 10 bottles. In 40-49 years group, 14.4 % of them drank a bottle and 8.1% of them drank above 10 bottles. In 50-59years group, 14,2% of them drank 2 bottles and 5.3 % of them drank above 10 bottles. This shows that a drinking rate decresed as an age increased. 11.Non-drinking rate was higher as an education level was lower. Each non-drinking rate of non-educated group, elementary school group, middle school group and high school group was 41.0 % of high school graduates and 14.5 % of college graduates drank 3 bottles of beer. 9.7 %(the highest rate) of college graduates drank above 10 bottles, in general drinking. 12.Each non-drinking rate of businessmen, farmers, service job workers, and students was 31.3%, 28.2%, 26.8% and 25.9%. However, Each drinking rate of public officers, company employees and teachers was 73.3 %, 72.2 % and 68.4 %. This tells us that the drinking rate of mental workers is higher than that of physical workers. 14.9 % of farmers and 14.4 % of public officers drank 3 bottles at a time. 10.5 % of teachers and 9.9 % of public officers drank above 10 bottles. 13.The variables which affect on drinking were sex(B=.1545), education(B=.1476), job(B=.1064), and age(B=.1052). These variables were significant in the level of 0.05 % and explanatory variance level was 18 %. 14.Government have to educate people and demonstrate the health hazards caused by smoking and over-drinking. Especially, No-smoking campaign for woman and education not to over drink for professional job workers are necessary.

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