• Asian Pacific Journal of Cancer Prevention
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• 제15권6호
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• pp.2495-2500
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• 2014

Background: Lung cancer is one of the most commonly diagnosed cancers and the most frequent cause of cancer-related death worldwide. In Iran, it ranks second and third as the cancer-causing death in men and women, respectively. We carried out this study to find out the demographic, clinical, and histological characteristics and risk factors of lung cancer in a referral tertiary center in Iran. Materials and Methods: A retrospective study was conducted on cases of primary lung cancer based on the results of registered cancer reports of cytological and pathological specimens between March 2001 and March 2012. Demographic variables, clinical manifestations, histology and location of tumors were determined based on the data found in the medical records of each patient. Definite or probable etiologic factors were identified. Data analysis was performed with SPSS version 16 and a p-value ${\leq}0.05$ was considered as significant. Results: A total of 203 patients, with a mean age of 65.7 years (SD=11.2), with primary lung cancer were identified, 81.3% being men. Of the total, 110 cases (54.2%) were living in urban areas. In 53.2% of cases, the site of tumor was on the right side and in 72.9% of cases the lesion was centrally located. The histological types of lung cancer were squamous cell carcinoma (SCC) in 107 cases (52.7%), adenocarcinoma (AC) in 30 cases (14.8%), and small cell carcinoma (SC) in 27 cases (13.3%). Significant correlations between the gender and residence, smoking, and the histological type and location (central or peripheral) of tumor were found. The percentage of smokers was 75.2% in men and 15.8% in women. Conclusions: Smoking was the most important risk factor and squamous cell carcinoma the most common histological type of lung cancer in our study. Male sex and being a smoker was associated with histological types of SCC while being nonsmoker had relationship with adenocarcinoma.

• 한국언론정보학보
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• 제32권
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• pp.369-405
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• 2006

본 연구는 정치적 소수자의 하나인 대학생을 중심으로 인터넷 시대에 나타날 수 있는 정치참여의 양태의 변화를 고찰하는데 그 목적을 두고 있다. 특히 전통적인 오프라인의 정치참여 뿐만 아니라 새로운 온라인 정치참여 방식의 발현이 어떻게 나타나는지에 대해 정치효능감과 정치신뢰감을 중심으로 살펴보았다. 총 221명의 대학생을 대상으로 설문조사를 시행한 결과 몇 가지 점을 발견할 수 있었다. 첫째, 전반적으로 정치효능감은 오프라인 및 온라인 모두에 걸쳐 정치참여에 정적인 영향을 미치는 주요한 변인으로 나타났다. 둘째, 반면 정치신뢰감은 어떤 형태의 정치참여방식에도 독립적인 영향력을 미치지 못하였다. 셋째, 정치효능감과 정치신뢰감의 상호작용효과는 온라인상의 정치참여에서 나타났다. 높은 정치효능감의 집단에서 낮은 정치신뢰감을 갖고 있는 사람들이 상대적으로 온라인 정치참여도가 높게 나타났다. 반면 중간 정도의 정치효능감의 집단에서는 높은 정치신뢰감을 가진 사람들이 가장 높은 정치참여도를 보였다. 그러나 낮은 정치효능감 집단에서는 정치신뢰감의 크기에 상관없이 거의 정치참여를 하지 않는 것으로 나타났다. 차후의 연구에서는 이 두 변인 외에 다른 변인들과의 관계를 포함하여 보다 포괄적인 정치참여의 구조모형을 설정하는 것이 필요할 것이다.

• 감성과학
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• 제18권3호
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• pp.81-92
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• 2015

본 연구는 성격 유형과 연령별, 유행혁신성에 따른 구두 스타일 선호와 감성에 대해 연구한 것으로 실증적 연구를 통해 이를 규명하고자 하였다. 본 연구는 편의표본 추출방식의 설문조사를 통한 연구를 하였으며 여대생 224명을 대상으로 조사하였다. 구두 스타일을 선정하기 위하여 구두 종류를 사전적 분류와 인터넷 검색을 이용하여 현 여대생들에게 착용이 적합한 총 8개 구두를 선정하였다. 성격유형은 MBTI 간략척도를 본 연구에 맞게 수정하여 사용하였다. 감성척도는 선행연구를 통해 검증된 감성척도를 수정 보완하였으며 SPSS통계분석 결과는 다음과 같았다. 첫째, 구두 스타일에 따라 선호와 감성에는 유의한 차가 있었으며 대응분석 결과, 구두의 감성은 4~5가지로 묶일 수 있었다. 둘째, 여대생의 성격유형별로 몇 가지 구두에서 선호와 감성의 유의한 차가 있었다. 셋째, 유행 혁신성에 따른 구두의 선호와 감성의 유의한 차가 있었으며 구매횟수에 따른 구두의 선호도에 유의한 차가 있었다. 본 연구결과를 통하여 소비자의 특성 및 유행이 급격하게 변화하는 구두시장에서 생산자, 소비자 모두에게 유용한 효과적인 정보 자료로 사용 될 수 있을 것으로 기대한다.

• 대한치과의사협회지
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• 제55권8호
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• pp.516-526
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• 2017

Objective: To suggest diagnostic reference levels (DRLs) for dental panoramic radiography in adults and children through the nationwide survey in Korea. Materials and Methods: Two hundred twelve dental institutions on a national basis were visited. The radiographic examination protocols were surveyed and their patient doses at the clinical exposure setting for adult and children (5- and 10-year old) were measured at 244 panoramic radiographic equipment. The measured DAP were analyzed and compared according to age group, the size of hospital, the type of radiographic system, the installation duration of equipment. Results: The mean exposure parameters were 70.1 kV, 9.2 mA, 14.4 second for adult and 66.6 kV, 7.9 mA, 13.8 second for 10-year old child and 65.5 kV, 7.3 mA, 13.7 second for 5-year old child. The mean and third quartile patient DAPs were $138.3mGy\;cm^2$ and $151.0mGy\;cm^2$ for adult, $99.5mGy\;cm^2$ and $104.8mGy\;cm^2$ for 10-year old child and $89.5mGy\;cm^2$ and $95.5mGy\;cm^2$ for 5-year old child. The mean patient dose at the university dental hospital was lower than that at the dental clinic (p<0.05). The mean patient dose of direct digital radiography type was higher than that of film-based type. However, the difference did not show statistically significance. Conclusion: DRLs for dental panoramic radiography in adult, 10- and 5-year old child were suggested to be $151mGy\;cm^2$, $105mGy\;cm^2$, and $96mGy\;cm^2$ in Korea based on this nationwide survey.

• 한국콘텐츠학회논문지
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• 제10권12호
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• pp.190-204
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• 2010

본 연구는 우리나라의 민간의료보험 가입자의 인구 사회 경제학적 특성과 가입자와 미가입자간의 질병 유형, 예방 및 건강행태, 의료이용 양상 등을 비교하였다. 그리고 민간보험 가입의 영향을 파악하여 향후 국민건강보험 및 민간의료보험 관련제도의 바람직한 발전방향을 제시하기 위한 기초자료 활용에 그 목적이 있다. 연구의 결과는 민간의료보험 가입 요인은 인구 사회 경제적 요인이 유의하게 나타났으며, 국민건강 영양조사에서 이루어진 인플루엔자 예방접종율과 건강보험 건강검진은 민간의료보험 가입자에게서 더 낮았고, 지난 2년간 본인부담 건강검진비율과 지난 2년간 암검진비율은 민간의료보험 가입자의 검진율이 더 높았다. 그리고 건강행위 평균을 민간의료보험 가입여부별로 보면, 격렬한 신체활동을 실천하는 비율은 민간의료보험 가입자가 더 높았고, 평균 수면시간, 1주일간 격렬한 신체활동을 하는 일수, 1주일간 중등도 신체활동을 하는 일수, 1주일간 유연성 운동일수 및 1주일간 근력운동일수에서도 민간의료보험 가입자가 미가입자 보다 많았다. 걷기를 실천하는 비율과 1주일간 걷기일수는 민간의료보험 가입자가 미가입자보다 적었다. 의료이용에 민간의료보험이 어떤 영향을 미치고 있는가를 살펴본 결과에서는 외래이용이 있는 경우와 입원이용횟수에서 민간의료보험가입자가 미가입자보다 외래를 이용할 확률이 높았고, 더 많은 횟수의 입원이 관련 요인으로 나타났다.

• 한국식품영양과학회지
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• 제32권2호
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• pp.287-294
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• 2003

본 연구는 임상영양 분야의 전문 웹사이트로서 고지혈증 환자를 위한 식사관리 및 영양평가 프로그램을 개발하기 위하여 수행되었다 프로그램은 고지혈증을 고콜레스테롤혈증과 고중성지방혈증으로 분류하고 이들에 대한 식사관리, 영양상담 및 영양평가 프로그램으로 구성하였다. 프로그램은 표준체중 및 열량 필요량 파일, 열량별 식단 및 일일 식단표 파일, 식사요법 및 영양관리 파일, 식사력 조사 및 평가파일, 식품 및 영양소 데이터베이스 파일, 식품의 지방산 파일, 음식 영양소 함량 및 영양소별 20순위 식품 파일 등을 데이터베이스로 하여 웹 페이지 형식으로 만들어졌다. 사용자는 인터넷 사이트로 들어가 자신의 정보를 입력하면 그 결과로 1일 열량 필요량 및 기타 영양소 필요량이 제시되고 그에 알맞은 식단을 보고 이용할 수 있도록 하였다. 식사관리 프로그램에서는 열량별 식단 자료실을 두어 1200 kcal에서 2500kcal까지 100 kcal 단위로 일주일간의 식단을 볼 수 있게 하였고, 식단계획시 고려사항, 식품의 선택방법, 식품교환표, 고지혈증 식사지침, 식사요법 및 영양관리, 영양소별 20순위식품, 용어설명 및 관련 사이트를 소개하였다 영양상담 프로그램으로는 고지혈증 예방을 위한 식습관 평가와 질환에 바른 식사력조사 및 상담 평가, on-line 영양상담, FAQ 등이 있다. 영양평가프로그램으로는 섭취음식을 입력함으로서 영양소 섭취 상태, 열량 영양소, 지방산, 식사별, 식품군별 영양소 섭취상태, 동ㆍ식물성 식품 영양소 섭취 상태, 기간별 영양소 섭취 변화 등을 평가받을 수 있도록 하였다. 영양소 섭취상태는 환자의 필요량과 비교하여 그래프로 제시되고, 열량영양소, 식사별 영양소, 지방산 섭취 상태는 아침, 점심, 저녁 ,간식으로 구분하여 결과를 볼 수 있고, 동ㆍ식물성 식품 섭취 및 기간별 영양소 변화 등은 각각의 영양소별로 그 섭취 상태를 비교할 수 있도록 하였다.

• Annals of Clinical Neurophysiology
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• 제9권1호
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• pp.11-15
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• 2007

Background: The term "overlap syndromes" designates a group of diseases in which polymyositis (PM) or dermatomyositis (DM) is associated with some other disorders of connective tissues. The aim of this study was to delineate the clinical features, laboratory findings, and outcome of treatment of "overlap syndromes" Methods: We analyzed the medical records of 16 patients (PM in 10, DM in 6) with well documented "overlap syndromes" between 1997 and 2004. The diagnosis was made when the criteria for two different disorders were fulfilled. Results: All patients were female. Age of onset ranged from 14 to 52 years (mean 29.8 years) with peak incidence in the third and fourth decades. Systemic lupus erythematosus (SLE) was associated in 10, systemic sclerosis in 7, and rheumatoid arthritis in 3 patients. Four of the patients had two different connective tissue diseases simultaneously. The characteristic clinical features were muscle weakness, arthralgia, Raynaud's phenomenon, and myalgia. In laboratory tests, creatine kinase (CK), lactic dehydrogenase (LDH), and transaminases were usually abnormal. Positive antinuclear antibody (ANA), rheumatoid factor (RF), and cryoglobulin were found in 100%, 69%, and 67% of the patients, respectively. Needle electromyography (EMG) showed abnormal findings compatible with myopathy in 15 patients. The pathology of muscle biopsy from 14 patients revealed findings compatible with inflammatory myopathy. Glucocorticoids were administered to 15 patients. The muscle strength improved in all the treated patients, which was well correlated with repeat CK level and EMG findings. Conclusions: The presence of autoantibodies such as ANA, RF, and cryoglobulin in patients with PM or DM highly suggests the possibility of an overlap syndromes. These syndromes reveal a strong female predominance. The myositis associated with them usually shows a good response to glucocorticoids treatment.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제36권3호
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• pp.202-205
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• 2010

Introduction: The aim of the present study was to investigate the effect of mechanical irrigation in combination with mouthwash of antimicrobial agents on salivary bacterial counts. Materials and Methods: This study was performed with a randomized study employing a panel of 40 healthy volunteers (20 males and 20 females) between the age of 26 and 32 years. Volunteers were randomly put in one of four treatment groups. In the first group, 0.2 mL of non-stimulatory saliva was collected from every subjective person. Then, saliva was collected after rinsing with chlorhexidine (CHX) for 1 minute. In the second group, non-stimulatory saliva was collected, and then saliva was collected after rinsing with CHX and irrigation with saline. In the third and fourth groups, the same procedures as the first and second groups were performed with povidone iodine (PVI) instead of CHX. All of these samples were cultured for 48 hours aerobically. The reduction rates of colony-forming units (CFU) were calculated for each group. The reduction rate between each group was tested statistically using student t-test. Results: Using CHX in combination with saline irrigation showed a significant decrease of the salivary bacterial CFU when compared with only using CHX.(P<0.01) And using PVI with saline irrigation showed a little decrease of the CFU when compared with only using PVI, but there was no statistical significance.(P>0.01) Conclusion: It was concluded that the CHX or PVI used with saline irrigation made the salivary bacterial counts reduced more than when CHX or PVI was used alone as an oral antiseptic agent.

• 대한치과보철학회지
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• 제44권1호
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• pp.103-111
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• 2006

Statement of problem: The previous unilateral bite force recorder has several limitations for taking long time for measuring and causing discomfort to subjects. Because of these reasons, it could not use widely for epidemiological researches. However, 'Dental Prescale System' which is new equipment for measuring bite force, is more convenient for measuring bite force than previous unilateral recorder. Purpose: The purpose of this study was to compare a new technique(Dental Prescale System) using pressure sensitive foils for recording of maximal jaw closing force with conventional measurement using unilateral bite force recorder Material and method: This studies included 22 healthy dental students in college of dentistry Yonsei university in Rep of Korea. Mean age was 23.9 years. All subjects had continuous dental arches and no significant malocclusion or signs from the teeth and craniomandibular system. The Dental Prescale System (Fuji Film, Tokyo, Japan) consists of a horseshoe-shaped pressure sensitive sheet (50H, R type) and a computerized scanning system.(FPD705) We also used unilateral bite force recorder(Denbotics Co. Seoul, Rep.Korea) for comparing with Dental Prescale. Results and conclusion: The total bite force recorded with Dental Prescale System (1423 N) was systematically higher than that recorded by unilateral bite force recorder. (256 N) However, the maximum bite force values measured in the two ways were significantly correlated (r=0.46, p<0.05). The Dental Prescale bite force calculated for first molar (208 N) was lower than that recorded by unilateral bite force recorder. (256 N) The two values were also very significantly correlated. (r=0.66. p<0.001) There were significantly different in bite force between two measurement methods. The reasons were first, unilateral bite force recorder measured only the bite force of a part of teeth, and Dental Prescale measured the total teeth force. Second, in measurement, a difference in muscle contraction appeared by an extent of mouth-opening. Third, unilateral bite force recorder has the reducing effect of the bite force by protective tape. Fourth, Dental Prescale has limitations during the computer scanning procedure. Therefore, Dental Prescale System is considered to be a very promising alternative to be conventional bite force recording methods.

• 한국병원경영학회지
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• 제17권1호
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• pp.1-22
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• 2012

This study tires to examine affects that job and socio-psychological stresses of female office workers influence job satisfaction, organization commitment, and leaving intentions. A complete data are collected by conducting a survey with 240 female office workers from 9 medical institutions regarded as almost general hospital in Seoul. It is analyzed that the relation between socio-psychological stress and job satisfaction, organization commitment, and leaving intentions by using t-test; analysis of variance; correlation analysis; principal component analysis; linear structural equation modeling; etc. The results of this study are summarized as following. First, as it was comprehended by specific characteristics of subjects that the female office workers' level of job and socio-psychological stress, job satisfaction, organizational commitment, and leaving intention, there were statistically significant distinctions from their age, marital status, presence of children, position in the organization, type of employment, and monthly average income. Second, this study regarded relationship between the female office workers' level of job and socio-psychological stresses, job satisfaction, organizational commitment, and leaving intention. Job and socio-psychological stresses were negatively correlated with job satisfaction and organizational commitment, but the stresses were positive with leaving intention. Third, after evaluating effect that 8 features related to the job stress could influence job stress, the most effective valuables were in order to unfairness in organizational structure, workplace culture, inadequate compensation, and relationship conflict. Fourth, when looking at the overall effects of the job and sociopsychological stresses on job satisfaction, organizational commitment, and leaving intention, work autonomy was the most influencing factor of work stress levels. The level of the job stress seemed to be a prevalent impact on the leaving intention and it showed the most negative relationship that path coefficient from leaving intention to organizational commitment and also from organizational commitment to job satisfaction. Based on these findings, it can be defined that the job and socio-psychological stresses strongly influence job satisfaction, organizational commitment, and leaving intention.