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Trends in mesothelioma incidence in Norway 1960-1988
1Directorate of Labour Inspection, Oslo, Norway.
Abstract:
The age and sex related trends in incidence of malignant mesothelioma and trends in notification of mesothelioma to the Labour Inspection between 1960-88 are investigated. For men, the age-adjusted incidence rate increased from 0.4 per 100,000 in the period 1960-69 to 1.4 per 100,000 in the period 1980-88. The number of mesotheliomas notified to the Labour Inspection increased from only 4 in the period 1960-69 to 165 in the period 1980-88. The incidence rate among women was unchanged, about 0.1 per 100,000.
Insights
Malignant mesothelioma incidence rose significantly in men from 1960-1988, with notifications to Labour Inspection also increasing. Mesothelioma rates in women remained stable during this period.
Area of Science:
- Occupational Health
- Epidemiology
- Public Health
Background:
- Malignant mesothelioma is a serious asbestos-related cancer.
- Understanding incidence and notification trends is crucial for public health interventions.
- Historical data on mesothelioma provides insights into past occupational exposures.
Purpose of the Study:
- To investigate age and sex-related trends in malignant mesothelioma incidence.
- To analyze trends in mesothelioma notifications to Labour Inspection from 1960 to 1988.
- To identify changes in mesothelioma occurrence over three decades.
Main Methods:
- Retrospective analysis of epidemiological data on malignant mesothelioma.
- Examination of age-adjusted incidence rates for men and women.
- Review of mesothelioma notification records submitted to Labour Inspection.
Main Results:
- Age-adjusted incidence rate in men increased from 0.4/100,000 (1960-69) to 1.4/100,000 (1980-88).
- Mesothelioma notifications to Labour Inspection rose from 4 (1960-69) to 165 (1980-88).
- Incidence rate in women remained stable at approximately 0.1/100,000.
Conclusions:
- Significant increase in male malignant mesothelioma incidence and reported cases observed between 1960-1988.
- Stable mesothelioma incidence rates in women suggest different exposure patterns or latency periods.
- Findings highlight the long-term impact of occupational exposures on cancer trends.