• 제목/요약/키워드: Cancer registration

검색결과 172건 처리시간 0.033초

Evaluation of Delhi Population Based Cancer Registry and Trends of Tobacco Related Cancers

  • Yadav, Rajesh;Garg, Renu;Manoharan, N;Swasticharan, L;Julka, PK;Rath, GK
    • Asian Pacific Journal of Cancer Prevention
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    • 제17권6호
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    • pp.2841-2846
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    • 2016
  • Background: Tobacco use is the single most important preventable risk factor for cancer. Surveillance of tobacco-related cancers (TRC) is critical for monitoring trends and evaluating tobacco control programmes. We analysed the trends of TRC and evaluated the population-based cancer registry (PBCR) in Delhi for simplicity, comparability, validity, timeliness and representativeness. Materials and Methods: We interviewed key informants, observed registry processes and analysed the PBCR dataset for the period 1988-2009 using the 2009 TRC definition of the International Agency for Research on Cancer. We calculated the percentages of morphologically verified cancers, death certificate-only (DCO) cases, missing values of key variables and the time between cancer diagnosis and registration or publication for the year 2009. Results: The number of new cancer cases increased from 5,854 to 15,244 (160%) during 1988-2009. TRC constituted 58% of all cancers among men and 47% among women in 2009. The age-adjusted incidence rates of TRC per 100,000 population increased from 64.2 to 97.3 among men, and from 66.2 to 69.2 among women during 1988-2009. Data on all cancer cases presenting at all major government and private health facilities are actively collected by the PBCR staff using standard paper-based forms. Data abstraction and coding is conducted manually following ICD-10 classifications. Eighty per cent of cases were morphologically verified and 1% were identified by death certificate only. Less than 1% of key variables had missing values. The median time to registration and publishing was 13 and 32 months, respectively. Conclusions: The burden of TRC in Delhi is high and increasing. The Delhi PBCR is well organized and generates high-quality, representative data. However, data could be published earlier if paper-based data are replaced by electronic data abstraction.

Estimating the Completeness of Lung Cancer Registry in Ardabil, Iran with a Three-Source Capture-Recapture Method

  • Khodadost, Mahmoud;Mosavi-Jarrahi, Alireza;Hashemian, Seyed Sepehr;Sarvi, Fatemeh;Maajani, Khadije;Moradpour, Farhad;Khatibi, Seyed Reza;Amini, Hossein
    • Asian Pacific Journal of Cancer Prevention
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    • 제17권sup3호
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    • pp.225-229
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    • 2016
  • Cancer registration is an important component of a comprehensive cancer control program, providing timely data and information for research and administrative use. Capture-recapture methods have been used as tools to investigate completeness of cancer registry data. This study aimed to estimate the completeness of lung cancer cases registered in Ardabil Population Based Cancer Registry (APBCR) with a three-source capture-recapture method. Data for all new cases of lung cancer reported by three sources (pathology reports, death certificates, and medical records) to APBCR for 2006 and 2008 were obtained. Duplicate cases shared among the three sources were identified based on similarity of first name, last name and father's names. A log-linear model was used to estimate number of missed cases and to control for dependency among sources. A total of 218 new cases of lung cancer was reported by three sources after removing duplicates. The estimated completeness calculated by log-linear method was 26.4 for 2006 and 27.1 for 2008. The completeness differed according to gender. In men, the completeness was 26.0% for 2006 and 28.1 for 2008. In women, the completeness was 36.5% for 2006 and 46.9 for 2008. In conclusion, none of the three sources can be considered as a reliable source for accurate cancer incidence estimation.

전라북도의 10년간(2001~2010) 암 발생률 추이 및 암등록 자료의 질 관리 지표 분석 (An Analysis of Ten Year Trends of Cancer Incidence and Quality Control of Cancer Registration Data in Jeollabuk-do, Korea: 2001~2010)

  • 이병기
    • 농촌의학ㆍ지역보건
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    • 제39권1호
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    • pp.46-58
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    • 2014
  • 본 연구에서는 전라북도 지역암등록본부로부터 2001년부터 2010년까지 10년간 수집된 암등록 자료를 토대로 전라북도 지역의 성별, 연령군별, 호발암별 암발생률 비교 분석과 변동 추이를 살펴보았으며, 또한 국제암연구소에서 제시하는 평가 지표를 기반으로 암등록자료의 질적 수준을 평가하였다. 전라북도 지역의 암발생률 통계 및 암등록 자료의 질 관리 지표는 전북지역암센터의 지역암등록본부로부터 수집되었다. 모든 암들에 대한 성별조발생율(CR)과 연령표준화발생률(ASR)의 10년간 추이를 살펴보았으며, 남녀 5대 호발암에 대한 ASR의 10년간 추이를 분석하였다. 또한 전라북도 지역암등록본부의 암등록 자료에 대한 년도별, 성별, 호발암별 질적 수준을 평가하기 위해 충실도와 타당도를 분석하였다. 충실도 평가를 위해 사용된 지표는 사망/발생비(MI%)와 연령별 발생률 곡선이며, 타당도 평가를 위해 사용된 지표는 연령 미상률(UNK%), 현미경적 확진율(MV%) 그리고 사망진단서에서만 확인가능한 환자의 분율(DCO%)이다. 암 발생률의 10년간 변동 추이는 joinpoint 회귀분석 도구를 이용하였으며, 해당 기간에 대한 연평균 암발생 변화율(AAPC)을 측정하였다. 10년간 전라북도 지역에서의 남성 호발암 순위는 위암이 22.2%로 가장 높았으며, 다음으로 폐암 16.6%, 대장암 12.8%, 간암 12.3%, 전립샘암 6.2% 순으로 나타났다. 여성에서는 갑상샘암이 17.8%로 가장 높았고, 위암 14.7%, 유방암 11.6%, 대장암 11.5%, 폐암 7.7% 순으로 나타났다. 10년 동안 모든 암들에 대한 연령표준화발생률(ASR)을 살펴보면 전체적으로 36.5% 증가하였다. 성별에 따른 ASR 증가율을 살펴보면 남성에서는 13.7%, 여성에서는 68% 증가하였다. 성별 호발암의 연간 변동 추이를 살펴보면 남성의 위암, 폐암, 간암 발생률은 각각 연평균 1.8%, 0.8%, 3.2% 감소하는 추세를 보이고 있으나, 대장암과 전립샘암은 각각 4.9%, 15.1% 증가하는 추세를 보였다. 여성에서는 5대 호발암중 유일하게 위암이 연평균 0.6% 감소하는 추세를 보였으나, 유방암, 대장암, 폐암은 각각 연평균 5.6%, 2.7%, 2.2% 증가 추세를 보였고, 특히 갑상샘암은 연평균 29.6%의 급격한 증가 추세를 보였다. 암등록 자료의 질적 수준 평가에서 충실도 평가 지표인 MI%는 남성에서 2001년 39.4%에서 2010년 32.4%로 낮아졌고, 여성의 경우 2001년 32.2%에서 2010년 23.5%로 낮아져 적정한 수준을 유지하였다. 타당도 평가 지표인 UNK%는 전라북도 지역에서 10년간 남녀 모두 0%로 나타났으며, DCO%는 남성에서 2001년 5.6%에서 2010년 1.3%로 낮아졌고, 여성에서는 2001년 6.1%에서 2010년 1.8%로 낮아져 암등록 자료의 정확성이 향상되었다. MV%는 남성의 경우 2001년 76.3%에서 2010년 88.5%로 증가하였고, 여성의 경우 2001년 78.4%에서 2010년 90.8%로 증가하여, 남녀 모두에서 암진단의 정확성이 높아진 것으로 확인되었다. 전라북도의 10년간 암발생률 추이를 분석한 결과 남성보다 여성에서 암발생률이 증가하고 있으며, 특히 남성에서는 대장암과 전립샘암이, 여성에서는 갑상샘암과 유방암이 증가하고 있음을 확인하였다. 또한 전라북도 지역암등록본부의 암등록 자료의 질관리 수준이 향상되고 있음을 확인하였다. 향후 연구에서는 대도시지역 또는 전라북도와 유사한 다른 지역과의 지역별, 연령별 호발암 및 암발생률 추이를 심층적이고 다각도로 비교 분석하여 향후 국가 차원의 암관리 대책 마련과 암 조기검진사업 추진 등의 보건 정책을 수립하는데 이와 같은 통계 자료가 반영될 수 있도록 해야 할 것이다.

Incidence, mortality, and survival of liver cancer using Korea central cancer registry database: 1999-2019

  • Sung Yeon Hong;Mee Joo Kang;Taegyu Kim;Kyu-Won Jung;Bong-Wan Kim
    • 한국간담췌외과학회지
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    • 제26권3호
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    • pp.211-219
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    • 2022
  • Backgrounds/Aims: Historically, incidence and survival analysis and annual traits for primary liver cancer (LC) has not been investigated in a population-based study in Korea. The purpose of the current study is to determine incidence, survival rate of patients with primary LC in Korea. Methods: We conducted a retrospective cohort study using Korea Central Cancer Registry based on the Korea National Cancer Incidence Database. Statistical analysis including crude rate and age-standadized rate (ASR) of incidence and mortality was performed for LC patients registered with C22 code in International Classification of Diseases, tenth revision from 1999 to 2019. Subgroup analysis was performed for hepatocellular carcinoma (HCC, C22.0) and intrahepatic cholangiocarcinoma (IHCC, C22.1). Results: The crude incidence rate of HCC (21.0 to 22.8 per 100,000) and IHCC (2.3 to 5.6 per 100,000) increased in the observed period from 1999 to 2019. The ASR decreased in HCC (20.7 to 11.9 per 100,000) but remained unchanged in IHCC (2.4 to 2.7 per 100,000). The proportion of HCC patients diagnosed in early stages (localized or regional Surveillance, Epidemiology, and End Results or SEER stage) increased significantly over time. As expected, 5-yeat survival rate of HCC was greatly improved, reaching 42.4% in the period between 2013 and 2019. This trait was more prominent in localized SEER stage. On the other hand, the proportion of IHCC patients diagnosed in localized stage remained unchanged (22.9% between 2013 and 2019), although ASR and 5-year survival rate showed minor improvements. Conclusions: A great improvement in survival rate was observed in patients with newly diagnosed HCCs. It was estimated to be due to an increase in early detection rate. On the contrary, detection rate of an early IHCC was stagnant with a minor improvement in prognosis.

깊이 영상의 평면 검출 기반 3차원 정합 기법을 이용한 상지 부종의 부피 측정 기술 (Volume measurement of limb edema using three dimensional registration method of depth images based on plane detection)

  • 이원희;김광기;정승현
    • 한국멀티미디어학회논문지
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    • 제17권7호
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    • pp.818-828
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    • 2014
  • After emerging of Microsoft Kinect, the interest in three-dimensional (3D) depth image was significantly increased. Depth image data of an object can be converted to 3D coordinates by simple arithmetic calculation and then can be reconstructed as a 3D model on computer. However, because the surface coordinates can be acquired only from the front area facing Kinect, total solid which has a closed surface cannot be reconstructed. In this paper, 3D registration method for multiple Kinects was suggested, in which surface information from each Kinect was simultaneously collected and registered in real time to build 3D total solid. To unify relative coordinate system used by each Kinect, 3D perspective transform was adopted. Also, to detect control points which are necessary to generate transformation matrix, 3D randomized Hough transform was used. Once transform matrices were generated, real time 3D reconstruction of various objects was possible. To verify the usefulness of suggested method, human arms were 3D reconstructed and the volumes of them were measured by using four Kinects. This volume measuring system was developed to monitor the level of lymphedema of patients after cancer treatment and the measurement difference with medical CT was lower than 5%, expected CT reconstruction error.

Data Quality of Childhood Cancer in Khon Kaen, Thailand, 1990-2007

  • Suwanrungruang, Krittika;Kamsa-ard, Supot;Wiangnon, Surapon
    • Asian Pacific Journal of Cancer Prevention
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    • 제15권18호
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    • pp.7985-7987
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    • 2014
  • Introduction: Khon Kaen Cancer Registry (KKCR) was established in 1984. KKCR aims to collect all cancer cases in Khon Kaen Province. The poorly qualified data may lead to distort the cancer burden and misinterpretation of policy maker. Objective: To assess data quality in childhood cancer between 1990 and 2007 in Khon Kaen Province, Thailand. Materials and Methods: Data of childhood cancer cases aged less than 20 years diagnosed during 1990-2007 were retrieved from the population-based data set of KKCR. All childhood cancer data were verified before data entry. Internal consistency, percentage of morphological verification (MV%) and cancer cased of the basis of diagnosis by death certificate only (DCO%) were evaluated. The age-adjusted rate (ASR) was calculated by standard method. Results: The data of childhood cancer from KKCR is acceptably qualified which reflects the quality of the whole registration.

Gastric Cancer Epidemiology in Korea

  • Shin, Ae-Sun;Kim, Jeong-Seon;Park, So-Hee
    • Journal of Gastric Cancer
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    • 제11권3호
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    • pp.135-140
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    • 2011
  • Gastric cancer has been the most commonly diagnosed cancer in Korea although the age-standardized mortality and incidence has decreased gradually during last two decades. $Helicobacter$ $pylori$ infection and cigarette smoking are well-established risk factors, and the role of dietary factors, such as salted foods, fresh vegetables and fruits, soy foods, and processed or grilled meats on gastric carcinogenesis has been suggested. In this review, we review national and international gastric cancer statistics, studies on environmental risk factors conducted in the Korean population, and gastric cancer screening activities.

유방암 환자의 감시림프절 생검을 위한 림포신티그라피와 실사영상의 합성 (Image Fusion of Lymphoscintigraphy and Real images for Sentinel Lymph Node Biopsy in Breast Cancer Patients)

  • 정창부;김광기;김태성;김석기
    • 대한의용생체공학회:의공학회지
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    • 제31권2호
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    • pp.114-122
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    • 2010
  • This paper presents a method that registers a lymphoscintigraphy to the real image captured by a CMOS camera, which helps surgeons to easily and precisely detect sentinel lymph nodes for sentinel lymph node biopsy in breast cancer patients. The proposed method consists of two steps: pre-matching and image registration. In the first step, we localize fiducial markers in a lymphoscintigraphy and a real image of a four quadrant bar phantom by using image processing techniques, and then determines perspective transformation parameters by matching with the corresponding marker points. In the second step, we register a lymphoscintigraphy to a real images of patients by using the perspective transformation of pre-matching. To examine the accuracy of the proposed method, we conducted an experiment with a chest mock-up with radioactive markers. As a result, the euclidean distance between corresponding markers was less than 3mm. In conclusion, the present method can be used to accurately align lymphoscintigraphy and real images of patients without attached markers to patients, and then provide useful anatomical information on sentinel lymph node biopsy.

Retrospective Appraisal of Cancer Patients from Vientiane Capital City, Lao People's Democratic Republic (PDR), Seeking Treatment in Thailand

  • Chaleunvong, Kongmany;Kamsa-ard, Supot;Suwanrungruang, Krittika;Wiangnon, Surapon;Sychareun, Vanphanom;Alounlangsy, Phetsamone;Durham, Jo;Promthet, Supannee
    • Asian Pacific Journal of Cancer Prevention
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    • 제14권9호
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    • pp.5435-5440
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    • 2013
  • Background: Recent estimates suggest that in the Lao People's Democratic Republic (Lao PDR) the burden of cancer in terms of DALYs lost is amongst the highest in South East Asia. As such, increasingly cancer is becoming an important public health concern in the country. Lao PDR however has no population-based cancer registry and only one hospital-based registry. Cancer treatment within the country is extremely limited. Patients who can, may travel to neighboring countries for treatment, but little information about this is available in the country. The aim of this study was to estimate some of the otherwise largely unknown parameters of the cancer burden in Lao PDR. Materials and Methods: This is a retrospective, descriptive study based on the records of 847 Lao cancer cases treated with surgery, radiation and chemotherapy at Srinagarind Hospital, Khon Kaen University, in Thailand between 1988 and 2010. Results: The annual rate of registration of Lao cancer cases fluctuated, but showed an increasing trend. Most cancers were diagnosed by histology (65.2%), and a combination of endoscopy and radiology (15.6%). In most cases (70.2%) the stage of cancer at diagnosis could not be determined. In those whose stage could be identified, 54.0% were at the final stage (Stage IV). Among males, the commonest cancer sites were the liver (16.1%), blood (12.3%) and nasopharynx (10.6%). Those in female patients were the cervix (22.2%), breast (14.6%) and blood (8.1%). Conclusions: This study indicates that despite some fluctuations, the number of Lao cancer patients presenting at Srinagarind Hospital, Khon Kaen, gradually increased between 1988 and 2010. The unfavorable pattern of late-stage cancer diagnosis among male and female patients suggests a need for cancer control interventions and the establishment of cancer registration and treatment facilities within Lao PDR.