Incidence of Second Metachronous Head and Neck Cancers: Population-Based Outcomes Over 25 Years
Incidence of Second Metachronous Head and Neck Cancers: Population-Based Outcomes Over 25 Years
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DOI:
10.1002/lary.24719
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发表时间:
2014-10-01
期刊:
影响因子:
2.6
通讯作者:
Olson, Robert A.
中科院分区:
文献类型:
--
作者:
Tiwana, Manpreet S.;Hay, John;Olson, Robert A.
Objectives/HypothesisThe primary objective was to determine the incidence of second metachronous head and neck cancers (HNC) following an index HNC and estimate their overall survival.Study DesignRetrospective cohort study.MethodsA total of 1,658 consecutive primary HNC patients diagnosed in 1986 to 1990 were identified through the prospectively maintained provincial BC Cancer Registry database. They were followed up for a period of 25 years. Survival analysis and second cancer estimates were performed with standard Kaplan-Meier & Cox regression analysis.ResultsOut of a total of 443 (27%) second cancers, 89 (5%) second HNC occurred in 1,658 HNC patients, with an actuarial metachronous HNC incidence rate at 5, 10, 15, 20, and 25 years that was 3.9%, 8.1%, 10.4%, 13.2%, and 14.5%, respectively. Second primary cancer (SPC) in lung and esophagus occurred in 155 (9%) and 32 (2%) patients, respectively. The median follow-up time for all patients and alive patients was 4.05 years (range, 0.2-25.0 years) and 23.2 years (range, 20.76-25.0 years), respectively. Of second HNC, 83 (93%) were metachronous. Oral cavity (P