Mesothelioma Incidence Rates in Australia since 1982: Exploring Age, Period, and Cohort Effects and Future...

Area of Science:

• Public Health
• Epidemiology
• Oncology

Background:

• Asbestos-containing products were banned in Australia in 2003.
• Mesothelioma has a long latency period, leading to a continued increase in cases post-ban.
• Understanding mesothelioma trends is crucial for public health planning.

Purpose of the Study:

• To investigate mesothelioma incidence in Australia using age-period-cohort analysis.
• To project future mesothelioma cases up to 2034.
• To identify birth cohorts most affected by mesothelioma.

Main Methods:

• Utilized the Australian Cancer Database (1982-2020) for mesothelioma case data.
• Applied age-standardized incidence rates using the 2001 Australian Standard Population.
• Employed age-period-cohort models and Nordpred for trend analysis and projections.

Main Results:

• Confirmed a significant birth cohort effect on mesothelioma incidence, particularly for those born 1920-1949.
• Projected age-standardized rates to decline, while crude rates stabilize then gradually decrease.
• Identified the 60-84 age group as the primary demographic for projected changes.

Conclusions:

• Findings align with historical occupational asbestos exposure driving mesothelioma risk.
• The asbestos ban's value is demonstrated by the cohort-specific risk patterns.
• A decline in annual mesothelioma cases is not anticipated before 2030.