Epidemiology for primary brain tumors: a nationwide population-based study

Area of Science:

• Neuro-oncology
• Epidemiology
• Cancer Research

Background:

• Primary central nervous system tumors (PCNST) are rare, with poorly understood epidemiology and limited national-level clinical data.
• High mortality and morbidity associated with PCNST necessitate comprehensive epidemiological analysis.

Purpose of the Study:

• To provide descriptive epidemiological data and incidence rates for all histological subtypes of PCNST, classified by WHO.
• To establish a national benchmark for PCNST epidemiology in France.

Main Methods:

• A nationwide, population-based study of newly diagnosed, histologically confirmed PCNST in France (2006-2011).
• Inclusion of 57,816 patients, analyzing data on incidence, sex ratio, age at diagnosis, cryopreservation, and surgical procedures.
• Calculation of crude and standardized incidence rates for international comparison.

Main Results:

• The crude incidence rate for all PCNST was 15.5 per 100,000 person-years.
• Standardized rates were 14.1/10^5 (USA), 14.5/10^5 (Europe), and 12.0/10^5 (world).
• Detailed data provided for 143 histological subtypes, including rare tumors, with examples like anaplastic gangliogliomas, malignant meningiomas, and hemangiopericytomas.

Conclusions:

• This study presents the first comprehensive national epidemiological data for all PCNST subtypes, including rare entities.
• The methodology ensures exhaustive data collection for histologically confirmed cases, offering valuable insights for clinical epidemiology and research.
• Findings provide a foundation for future research and improved understanding of PCNST impact.