• 제목/요약/키워드: Cancer registration data

검색결과 96건 처리시간 0.022초

Estimation of the Gastric Cancer Incidence in Tehran by Two-Source Capture-recapture

  • Aghaei, Abbas;Ahmadi-Jouibari, Toraj;Baiki, Omid;Mosavi-Jarrahi, Alireza
    • Asian Pacific Journal of Cancer Prevention
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    • 제14권2호
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    • pp.673-677
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    • 2013
  • Introduction: Capture-recapture methods have been suggested for reducing costs of disease registration as well as reducing bias in incidence estimations. This study aimed to estimate the gastric cancer incidence in the Tehran metropolis population during 2002-2006. Materials and Methods: We investigated new cases of gastric cancer reported by three sources; death certificates, pathology reports, and medical records to Tehran population-based cancer registry during 2002-2006. $G^2$ statistics and the two-source capture-recapture method were used to select the best-fitted log-linear model and to estimate incidence, respectively. EXCEL software version 2007 and SPSS software version 16 were used for this research. Results: The number of reported cases was 4,463, with an average age of 68.5 (${\pm}12.9$) years. We found the model that combined two sources of data including pathology reports and medical records and furthermore complemented by death certificates as the best model. The reported and the estimated incidences were 11.0 and 27.1 per 100,000 respectively. Conclusions: The incidence estimated by two-source capture-recapture method is about three times higher than the incidence reported by the sources under investigation. It is recommended to move towards the implementation of population-based cancer registration using various sources of data collection to achieve more accurate data.

Estimating the Completeness of Gastric Cancer Registration in Ardabil/Iran by a Capture-Recapture Method using Population-Based Cancer Registry Data

  • Khodadost, Mahmoud;Yavari, Parvin;Babaei, Masoud;Mosavi-Jarrahi, Alireza;Sarvi, Fatemeh;Mansori, Kamyar;Khodadost, Behnam
    • Asian Pacific Journal of Cancer Prevention
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    • 제16권5호
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    • pp.1981-1986
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    • 2015
  • Background: Knowledge of cancer incidences is essential for cancer prevention and control programs. Capture-recapture methods have been recommended for reducing bias and increasing the accuracy of cancer incidence estimations. This study aimed to estimate the completeness of gastric cancer registration by the capture-recapture method based on Ardabil population-based cancer registry data. Materials and Methods: All new cases of gastric cancer reported by three sources, pathology reports, death certificates and medical records that reported to Ardabil population-based cancer registry in 2006 and 2008 were enrolled in the study. The duplicate cases based on the similarity of first name, surname and fathers names were identified between sources. The estimated number of gastric cancers was calculated by the log-linear method using Stata 12 software. Results: A total of 857 new cases of gastric cancer were reported from three sources. After removing duplicates, the reported incidence rates for the years 2006 and 2008 were 35.3 and 32.5 per 100,000 population, respectively. The estimated completeness calculated by log-linear method for these years was 36.7 and 36.0, respectively. Conclusions: These results indicate that none of the sources of pathology reports, death certificates and medical records individually or collectively fully cover the incident cases of gastric cancer. We can obtain more accurate estimates of incidence rates using the capture-recapture method.

Estimating Completeness of Cancer Registration in Iran with Capture-Recapture Methods

  • Mohammadi, Gohar;Akbari, Mohammad Esmaeil;Mehrabi, Yadolah;Motlagh, Ali Ghanbari;Pour, Elham Partovi;Roshandel, Gholamreza;Khosravi, Ardasheir
    • Asian Pacific Journal of Cancer Prevention
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    • 제17권sup3호
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    • pp.93-99
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    • 2016
  • Completeness is an important indicator of data quality in cancer registry programs. This study aimed to estimate the completeness of registered cases in a population based cancer registry program implemented in five provinces of Iran. Capture-recapture methods were used to estimate the number of cases that may have been missed and to estimate rates of completeness for different categories of age, year, and sex. The data used for this study were obtained from three sources: 1) National Pathology Database; 2) National Hospital Discharge Database; and 3) National Death Registry Database. The three sources were linked and duplicates were identified based on first name, last name, father's names, and date of birth, ICD code, and case's residency address using Microsoft Excel. Removing duplicates, the three sources reported a total of 35,643 cases from March 2008 to March 2011. Running many different multivariate models of capture-recapture and controlling for source dependencies revealed an overall under-reporting of 49% in all five registries combined. The estimated completeness differed based on age, sex, and year. The overall completeness was higher for males than females (71.2% for males and 59.9% for females). Younger age had lower rates of completeness compared to older age (38.1% for <40 years, 55.4% for 40-60 years, and 76.7 for >60 years). The results of this study indicated a moderate to severe (depending on the age, sex and year) degree of completeness in the population based cancer registration of Iran.

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.

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.

What and Where for Publications by Cancer Registries in the Asian Pacific? - Roles for the APJCP in the Future

  • Moore, Malcolm Anthony
    • Asian Pacific Journal of Cancer Prevention
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    • 제14권8호
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    • pp.4939-4942
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    • 2013
  • The absolute necessity of cancer registration for cancer control planning is well accepted. The registry at the national or local level can provide not only essential data for cancer incidence, mortality and survival but may also point to risk and protective factors and efficacy of interventions by conducting epidemiological research. Timely publication of research findings in PubMed indexed journals is of the essence, especially in examples that allow free access so that the widest dissemination of information can be achieved. The present commentary covers the scope of research in Asia or using Asian data the period 2008-2013, nearly 40% of a total of over 300 papers being published in the APJCP. In order to reach its full potential the registry should incorporate many skills. Cooperation for this purpose, whether it be national, regional, Asia-wide or international, is a high priority and the International Agency for Research on Cancer, together with the National Cancer Institute in Thailand and the APOCP/APJCP are staging an Asian Cancer Network Forum in Bangkok in February of 2014 to allow discussion of ways forward. It is hoped that representatives from all regions of Asia will decide to attend and a l so contribute country reports for publication in a special supplement of the APJCP.

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.

대구지역 암등록사업의 효율적 수행방안 (The Efficient Methods of Population-based Cancer Registration in Daegu City)

  • 진대구;천병렬;안순기;김종연;감신
    • Journal of Preventive Medicine and Public Health
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    • 제35권4호
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    • pp.322-330
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    • 2002
  • Objective: This study was conducted to automatically improve the completeness and validity of the Daegu Cancer Registry, using cross record linkage of many data sources, and to develop a computerized patient enrollment system for efficient communication among cancer researchers via the internet. Method: We analyzed 10,229 cancer patients who were reported in the National Cancer Registry, and from pathological reports, health insurance cancer claims lists, cancer patient records at hospital information centers and death certificates from the Korea National Statistical Office. Result: We confirmed 4,624 cancer patients and found 897 of new cases from a review of medical chart. The new cases were detected efficiently using cross record linkage. We developed a computerized patient enrollment system, based on a client-sewer model, for the input of cancer patients, and then developed a web-based reporting homepage and patient enrollment system for the internet. Conclusion: This system could manage cancer databases systematically, and could be given to other researchers as a basic database.

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.

The Association between Cancer Incidence and Family Income: Analysis of Korean National Health Insurance Cancer Registration Data

  • Kim, Ji-Man;Kim, Hee-Moon;Jung, Bo-Young;Park, Eun-Cheol;Cho, Woo-Hyun;Lee, Sang-Gyu
    • Asian Pacific Journal of Cancer Prevention
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    • 제13권4호
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    • pp.1371-1376
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    • 2012
  • Background: Economic status is known to be directly or indirectly related to cancer incidence since it affects accessibility to health-related social resources, preventive medical checkups, and lifestyle. This study investigates the relationship between cancer incidence and family income in Korea. Methods:Using the Korean National Health Insurance cancer registration data in 2009, the relationship between their family income class and cancer risk was analyzed. The age-standardized incidence rates of the major cancers were calculated for men and women separately. After adjusting for age, residential area, and number of family members, cancer risks for major cancers according to family income class were estimated using a logistic regression model. Results: In men, the risk of stomach cancer for Income Class 5 (lowest) was 1.12 times (95% CI 1.02-1.23) higher than that of Income Class 1 (highest), for lung cancer 1.61 times (95% CI 1.43-1.81) higher, for liver cancer 1.22 times (95% CI 1.08-1.37) higher, and for rectal cancer 1.37 times higher (95% CI 1.18-1.59). In women, the risk of stomach cancer for Income Class 5 was 1.22 times higher (95% CI 1.08-1.37) than that for Income Class 1, while for cervical cancer it was 2.47 times higher (95% CI 2.08-2.94). In contrast, in men, Income Class 1 showed a higher risk of thyroid cancer and prostate cancer than that of Income Class 5, while, in women the same was the case for thyroid cancer. Conclusions: The results show the relationship between family income and cancer risk differs according to type of cancer.