J Mork1. 1. Cancer Registry of Norway, Oslo, Norway. jon.mork@kreftreg.no
Abstract
BACKGROUND: Male incidence rates of head and neck cancer are rising in most regions of the world. This paper describes Norwegian time trends in male incidence and relative survival from cancer of major head and neck sites. MATERIAL AND METHODS: The presentation comprises the entire Norwegian male population from 1955 to 1994. Incidence rates and relative survival rates were calculated for cancer of oral sites, oro-/hypopharynx and larynx separately. RESULTS: Age-adjusted incidence rates of oral and pharyngeal cancer increased after 1970 by 11 percent per 5-year period (95% CI: 5-19) and 14 percent per 5-year period (95% CI: 4-24), respectively. Laryngeal cancer incidence increased after 1955 by 14 percent per 5-year period (95% CI: 7-21). There were only small improvements in 5-year relative survival rates from oral and pharyngeal cancer. CONCLUSION: Male incidence rates increased for all the studied sites during the observation period. The prognosis for the patient groups included in this presentation has not improved substantially since the 1950's.
BACKGROUND: Male incidence rates of head and neck cancer are rising in most regions of the world. This paper describes Norwegian time trends in male incidence and relative survival from cancer of major head and neck sites. MATERIAL AND METHODS: The presentation comprises the entire Norwegian male population from 1955 to 1994. Incidence rates and relative survival rates were calculated for cancer of oral sites, oro-/hypopharynx and larynx separately. RESULTS: Age-adjusted incidence rates of oral and pharyngeal cancer increased after 1970 by 11 percent per 5-year period (95% CI: 5-19) and 14 percent per 5-year period (95% CI: 4-24), respectively. Laryngeal cancer incidence increased after 1955 by 14 percent per 5-year period (95% CI: 7-21). There were only small improvements in 5-year relative survival rates from oral and pharyngeal cancer. CONCLUSION: Male incidence rates increased for all the studied sites during the observation period. The prognosis for the patient groups included in this presentation has not improved substantially since the 1950's.
Authors: Rebekah K O'Donnell; Rosemarie Mick; Michael Feldman; Satoshi Hino; Yan Wang; Marcia S Brose; Ruth J Muschel Journal: Cancer Lett Date: 2007-06-18 Impact factor: 8.679