Comparison of Cancer Survival by Age Group for 1997 and for 2002: Application of Period Analysis using the National Cancer Incidence Database / 예방의학회지
Journal of Preventive Medicine and Public Health
; : 17-22, 2008.
Article
在 Ko
| WPRIM
| ID: wpr-229150
Responsible library:
WPRO
ABSTRACT
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.
Key words
全文:
1
索引:
WPRIM
主要主题:
Time Factors
/
Health Surveys
/
Survivors
/
Age Distribution
/
Korea
/
Neoplasms
研究类型:
Incidence_studies
/
Prognostic_studies
限制:
Adolescent
/
Adult
/
Aged
/
Female
/
Humans
/
Male
国家/地区名称主题:
Asia
语言:
Ko
期刊:
Journal of Preventive Medicine and Public Health
年:
2008
类型:
Article