대학생의 졸업 속도 영향요인에 대한 생존분석: 4년제 대학 여학생을 중심으로

장희원,김경근 한국교육사회학회 2014 교육사회학연구 Vol.24 No.3

This study attempts to examine factors affecting the graduation speed for female students attending four-year colleges in Korea. Toward this end, we examine the effects of student characteristics on the speed toward degree completion among female students with Cox proportional hazard model using first-eighth wave data from the Korean Education and Employment Panel(KEEP). The results show that students’ parental education, plan to go to graduate school, major, GPA(grade point average), and employment prospects taken into account as the criteria for choosing a college to attend exert impact on their speed toward graduation. Specifically, those students with higher parental education tend to complete their studies faster than their counterparts with lower parental education, whereas those who plan to go to graduate school graduate slower than those who don’t. Also, education majors and arts and physical education majors graduate faster than their humanities major peers. In addition, ceteris paribus, those who had taken into account employment prospects upon graduating from college when they chose a college to attend exhibit a faster speed of graduation than that of those who had not. Finally, higher GPA among female students may help them finish a degree quicker. However, the presence of sibling attending college, college satisfaction, and language training abroad have little to do with students’ speed toward degree completion. Based on these results, we briefly discuss policy measures which could boost “on-time” degree completion and make entry into labor market easier. 본 연구는 4년제 대학에서 수학하고 있는 여대생들의 졸업 속도에 영향을 미치는 요인들을 분석하고자 수행되었다. 이를 위해 한국교육고용패널(KEEP) 1∼8차년도 데이터를 사용하여 생존분석 가운데 하나인 콕스비례위험모형(Cox proportional hazard model) 분석을 실시하였다. 분석 결과, 여대생들의 졸업 속도에는 부모 학력, 대학원 진학 포부, 전공계열, 평균 평점, 대학진학 시 취업전망 고려 여부가 의미 있는 영향을 미치는 것으로 나타났다. 구체적으로, 부모 학력이 높은 학생들은 졸업이 빨라지는 반면, 대학원 진학 계획을 갖고 있었던 학생들은 졸업이 늦어지는 것으로 나타났다. 그리고 인문계열 전공자에 비해 교육계열과 예체능계열 전공자의 졸업이 더 빨리 발생했다. 아울러 다른 조건이 동일하다면 대학에 진학할 때 취업전망을 고려했거나 평균 평점이 높은 경우에도 졸업이 빨라질 개연성이 높았다. 한편 대학생 형제자매의 존재, 대학만족도, 어학연수 경험 등은 여대생들이 대학을 졸업하는 속도에 의미 있는 영향을 미치지 않았다. 이러한 연구결과를 바탕으로 여대생들이 제때에 대학교육을 마치고 노동시장에 진출하는 데 도움을 줄 수 있는 정책방안을 간략하게 제언하였다.

Risk Factors for Recurrent High-Risk Polyps after the Removal of High-Risk Polyps at Initial Colonoscopy

장희원,김태일,박수정,홍성필,천재희,김원호 연세대학교의과대학 2015 Yonsei medical journal Vol.56 No.6

Purpose: Colonoscopic polypectomy and surveillance are important to prevent colorectal cancer and identify additional relativerisk factors for adequate surveillance. In this study, we evaluated risk factors related to recurrent high-risk polyps during the surveillanceof patients with high-risk polyps. Materials and Methods: We included 434 patients who had high-risk polyps (adenoma ≥10 mm, ≥3 adenomas, villous histology,or high-grade dysplasia) on the baseline colonoscopy and underwent at least one surveillance colonoscopy from 2005 to 2011 atSeverance Hospital. Data regarding patient characteristics, bowel preparation and polyp size, location, number, and pathologicaldiagnosis were retrospectively collected from medical records. Patients with recurrent high-risk polyps were compared with patientswith low-risk or no polyps during surveillance. Results: Patients were predominantly male (77.4%), with a mean age of 61.0±8.6 years and mean follow-up of 1.5±0.8 years. Highriskpolyps recurred during surveillance colonoscopy in 51 (11.8%) patients. Results of multivariate analysis showed that malegender, poor bowel preparation, and a larger number of adenomas were independent risk factors for recurrent high-risk polyps(p=0.047, 0.01, and <0.001, respectively). Compared with high-risk polyps found during initial colonoscopy, high-risk polyps onsurveillance colonoscopy had higher proportions of small adenomas, low-risk pathology, and fewer adenomas overall, but therewas no difference in location. Conclusion: Male patients and those with poor bowel preparation for colonoscopy or higher numbers of adenomas were morelikely to experience recurrent high-risk polyps.

USDA 농업전망 2018: 농산물 무역부문

장희원 한국농촌경제연구원 2018 세계농업 Vol.213 No.-

동결융해시험에 의한 무등산응회암의 탄성파 속도 분석 및 풍화 양상

장희원,노정두,강성승 대한지질공학회 2021 대한지질공학회 학술발표회논문집 Vol.2021 No.1

Word2vec을 활용한 문서의 의미기반 검색

장희원,김우주 한국지능정보시스템학회 2015 한국지능정보시스템학회 학술대회논문집 Vol.2015 No.11

항합성효소증후군과 류마티스 관절염의 중첩증후군 1예

장희원,하유정,강윤,이광훈,박용범,이수곤 대한내과학회 2011 대한내과학회지 Vol.81 No.5

The antisynthetase syndrome is characterized by anti-Jo-1 antibody production, interstitial lung disease, inflammatory muscle disease, and, in many cases, fever, polyarthritis, Raynaud’s phenomenon, and mechanic’s hands. Joint signs and symptoms occur in up to 90% of patients with antisynthetase syndrome, occasionally as the initial manifestations. Although visual inspection of the hands shows changes that are highly suggestive of rheumatoid arthritis, notable differences exist. Antisynthetase syndrome is a predominantly nonerosive arthropathy with subluxations of the distal interphalangeal joints. It manifests as overlap syndrome with other connective tissue diseases. However, overlap syndrome of antisynthetase syndrome and rheumatoid arthritis is rare. We treated a 51-year-old male patient with overlap syndrome of antisynthetase syndrome and rheumatoid arthritis, and report the case with a review of the literature. (Korean J Med 2011;81:673-679) 저자들은 관절염과 근염을 동반한 중년 남성에서 류마티스 관절염과 항합성효소증후군이 동반된 중첩증후군을 진단하고 치료한 1예를 경험하였기에 문헌고찰과 함께 보고하는 바이다.

How Many Valid Measurements Are Necessary to Assess Liver Fibrosis Using FibroScan® in Patients with Chronic Viral Hepatitis? An Analysis of Subjects with at Least 10 Valid Measurements

장희원,김도영,김승업,박준용,안상훈,한광협,전재윤,박영년,최은희 연세대학교의과대학 2012 Yonsei medical journal Vol.53 No.2

Purpose: Using FibroScan® to obtain a reliable liver stiffness measurement (LSM) may require more than 10 valid measurements (VMs), according to the manufacturer’s recommendations. However, this requirement lacks scientific evidence in support thereof. We investigated the minimal number of VMs required to assess liver fibrosis without significant loss of accuracy in patients with chronic hepatitis B (CHB) and C (CHC) and predictors of discordance between LSM and liver biopsy (LB). Materials and Methods: Between January 2005 and December 2009, we prospectively enrolled 182 patients with CHB and 68 patients with CHC who were to undergo LB and LSM before starting antiviral treatment. Only LSMs with at least 10 VMs were considered reliable. The Batts and Ludwig scoring system was used for histologic assessment. Results: The mean age and body mass index were 46.0 years and 23.4 kg/m2 in patients with CHB and 49.7 years and 23.1 kg/m2 in those with CHC, respectively. The median elasticity scores from the first 3, first 5, and all VMs taken significantly predicted fibrosis stages ≥F2 and F4 (all p<0.05) without significant differences (all p>0.05 by DeLong’s method). Alanine aminotransferase (ALT) was the only predictor of discordance in fibrosis stage as estimated by the median elasticity score from the first 3 VMs and by LB in patients with CHB, whereas no significant predictor was identified in those with CHC. Conclusion: After comparison of patients who had more than 10 valid measurements for LSM, three VMs may be enough to assess liver fibrosis using LSM without significant loss of accuracy in patients with CHC and patients with CHB. However, ALT should be considered when interpreting LSM for patients with CHB.

LC-HRMS를 이용한 낙동강 수계 내 신종오염물질 및 변환산물 분석

장희원,전준호 환경독성보건학회 2022 한국독성학회 심포지움 및 학술발표회 Vol.2022 No.10

실생활 속 자연재해에 대한 학생들의 인식 및 대응 역량 강화를 위한 지리교육의 방향

장희원 동국대학교 교육연구원 2021 한국교육문제연구 Vol.19 No.2

학업성취에 대한 학생 사회경제적 구성의 효과: 계층에 따른 차별적 효과를 중심으로

장희원,김경근 한국교육학회 2015 敎育學硏究 Vol.53 No.2

Drawing on first-third wave data from Seoul Educational Longitudinal Study(SELS), this study attempts to examine the effect of school population socioeconomic composition on individual academic achievement focusing on the moderating effect of individual socioeconomic status(SES). Our hierarchical linear modeling(HLM) results show that the heterogeneity of socioeconomic composition, which is measured by standard deviation of SES of school population, does not wield a statistically significant influence on individual academic achievement. However, school mean SES noticeably exerts a significant impact on individual academic achievement. In addition, cross-level interaction effect between individual SES and school mean SES, which is taken into account to analyze how the school composition effect varies by individual SES, suggests that students with higher SES benefit more from a higher school mean SES than students with lower SES, thereby widening the gap of academic achievement between the upper and the lower class in schools with higher SES. Based on the findings, policy implications are briefly discussed. 본 연구는 서울교육종단연구 1∼3차년도 중학생 데이터를 사용하여 학업성취에 대한 학생구성의 효과를 분석하고, 이 과정에서 학생구성의 효과가 개별 학생의 계층에 따라 어떻게 달라지는지 살펴보았다. 위계적 선형 모형(hierarchical linear modeling) 분석 결과, 학생들 가정배경의 이질성은 학업성취에 영향을 미치지 않는 것으로 판명되었다. 반면 학교평균 사회경제적 지위는 학업성취와 매우 밀접한 관계를 갖는 것으로 나타났다. 그리고 학생구성 효과가 개별 학생의 사회경제적 지위에 따라 차별적으로 발생하는지 살펴보기 위해 상호작용항을 투입한 결과, 부모의 사회경제적 지위가 높은 학생일수록 학교평균 사회경제적 지위가 높아지면서 발생하는 학업성취 상승효과를 더 크게 누리는 것으로 밝혀졌다. 이는 가정배경에 따른 학업성취 격차가 학교평균 사회경제적 지위가 높은 학교에서 더욱 확대된다는 것을 보여주는 결과로 해석할 수 있다. 이러한 연구결과를 바탕으로 학생구성이 교육격차에 미칠 수 있는 영향 및 그 정책적 함의를 간략하게 논의하였다.