[Oral and pharyngeal cancer: incidence, mortality, and survival in Germany].

Background: Lip, oral cavity, and pharynx cancers (ICD-10: C00-C14) describe a heterogeneous group of tumors with strong variations in incidence, mortality, and survival by entity.
Objectives: This work provides a detailed overview of epidemiologic measures for these tumor entities, taking into account heterogeneity in age, sex, location, and stage.
Material and Methods: Incidence and mortality data for Germany for the years 1999-2016 were extracted from the interactive database of the Center for Cancer Registry Data (ZfKD). Age and stage distributions and five-year relative survival were calculated on the pooled ZfKD data set (diagnosis years 1999-2017).
Results: In 2016, overall incidence and mortality for all entities were 17.6 and 7.0 per 100,000 men and 6.5 and 1.8 per 100,000 women, respectively. The five-year relative survival in 2015-2017 was 53 and 63%, respectively. There were marked differences in survival as well as age and stage distributions between entities. Trend analyses showed an increase in age at diagnosis, particularly in male patients, and no change in stage distributions. However, five-year relative survival increased from 45% (men) and 59% (women) in 1999-2002 to 52% and 63% in 2013-2017.
Conclusion: The marked heterogeneity of the studied tumors highlights the need to differentiate the analysis by sex and entity for meaningful interpretation of epidemiologic metrics. With the expansion of clinical cancer registration in Germany, additional analyses including other important clinical factors will be possible in the future.
(© 2021. The Author(s).)