Is brain cancer mortality increasing in industrial countries?

Area of Science:

• Neurology
• Oncology
• Epidemiology

Background:

• Brain and central nervous system (CNS) cancers represent a significant health concern.
• Understanding mortality trends is crucial for public health initiatives.
• Previous analyses often lacked age-specific granularity.

Purpose of the Study:

• To analyze age-specific mortality trends for brain and CNS cancers.
• To investigate the role of diagnostic confirmation technology in observed trends.
• To compare trends across multiple industrialized nations.

Main Methods:

• Analysis of age-specific mortality data from 1968-1987 in the US, UK, Italy, France, and West Germany.
• Examination of diagnostic confirmation technology use in the US SEER program (1973-1987).
• Focus on age groups, particularly those aged 75-84.

Main Results:

• Overall brain and CNS cancer mortality rates are stable in the US and Sweden.
• Significant increases in age-specific mortality rates observed, with rates doubling in individuals aged 75-84.
• High rates of microscopic or radiographic confirmation (96%) in US SEER cases, with older individuals receiving more tests.

Conclusions:

• Age-specific analyses reveal critical differences in brain and CNS cancer mortality trends.
• The contribution of diagnostic technology to increasing mortality trends in older populations requires further investigation.
• Continued study is necessary to understand the drivers of these observed trends.