- Comparison of Cancer Survival by Age Group for 1997 and for 2002: Application of Period Analysis using the National Cancer Incidence Database.
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Seon Hee Yim, Kyu Won Jung, Young Joo Won, Hyun Joo Kong, Hai Rim Shin
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J Prev Med Public Health. 2008;41(1):17-22.
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DOI: https://doi.org/10.3961/jpmph.2008.41.1.17
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 Abstract
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- OBJECTIVES
Period analysis estimates up-to-date survival rates of cancer patients. In this approach, analysis is restricted to recent time period by left-truncating all observations at the beginning of the period and rightcensoring at its end. Here, we applied period analysis to examine changes in 5-year relative survival (RS) by age group for 1997 and for 2002. METHODS: Using the National Cancer Incidence Database, 5-year RS was estimated for 1997 and 2002 in four age groups (15-54, 55-64, 65-74, and 75 years old and over) using period analysis. After excluding death certificate-only cases, patients with an unknown date of diagnosis or follow-up length, a total of 813,889 patients diagnosed with a first primary invasive cancer during 1992-2002 were included for analysis. Followup for vital status was included until 31 December 2002. RESULTS: Five-year RS increased from 41.7% for 1997 to 46.7% for 2002. Increases in survival occurred in all age groups except in the 75 and over group. CONCLSIONS: The age gradient in cancer prognosis seems to have widened between 1997 and 2002, a finding that requires further study of prognostic factors, including stage at diagnosis. Period analysis accurately estimates survival rates, especially for cancers with better prognosis.
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Citations to this article as recorded by  - Advanced Detection of Recent Changing Trends in Gastric Cancer Survival: Up-to-date Comparison by Period Analysis
H. S. Kim, H. Lee, H. C. Jeung, S. H. Noh, H. C. Chung, J. K. Roh, C. M. Nam, S. Y. Rha
Japanese Journal of Clinical Oncology.2011; 41(12): 1344. CrossRef - Usefulness of Comorbidity Indices in Operative Gastric Cancer Cases
Se-Min Hwang, Seok-Jun Yoon, Hyeong-Sik Ahn, Hyong-Gin An, Sang-Hoo Kim, Min-Ho Kyeong, Eun-Kyoung Lee
Journal of Preventive Medicine and Public Health.2009; 42(1): 49. CrossRef
- Epidemiologic Study of Clonorchis Sinensis Infestation in a Rural Area of Kyongsangnam-do, South Korea.
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Young Hee Ju, Jin Kyoung Oh, Hyun Joo Kong, Woon Mok Sohn, Jung Il Kim, Kap Yeol Jung, Yoon Gyu Kim, Hai Rim Shin
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J Prev Med Public Health. 2005;38(4):425-430.
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Abstract
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- OBJECTIVES
To investigate the prevalence of Clonorchis sinensis infestation and to determine the associated risk factors among a population in a part of the rural area of Gyeongsangnam-do, Korea, which is an area known to have a high mortality from liver cancer and a high infection of C. sinensis. METHODS: The study population consisted of those people who have lived in rural areas and who were over 40 years old. This study was performed in 5 areas during the period from 1999 to 2003. Informed consents were obtained from the 2, 381 study participants, and these people were interviewed about their life style habits with using the structured questionnaire that was administered by trained staff members. The subjects underwent blood sampling and their stool specimens were examined by using the Formalin-ether sedimentation technique. RESULTS: Among the study subjects (N=2, 381), the positivity for C. sinensis in the stool was 34.4% (95% CI= 36.3-42.5) ; it was 39.4% (95% CI=36.3-42.5) in the males and 30.9% (95% CI=28.5-33.3) in the females. The positivity for C. sinensis was associated with current alcohol drinking (odds ratio=1.8, 95% CI: 1.5-2.1) and raw fish consumption (odds ratio 1.2, 95% CI: 0.9-1.6). CONCLUSION: The present study confirmed the high prevalence of C. sinensis in the study subjects. It is necessary to establish consistent medical management and education programs for the treatment and prevention of C. sinensis infestation in the rural inhabitants of Korea.
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