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Multimodal Bioluminescent and Positronic-emission Tomography/Computational Tomography Imaging of Multiple Myeloma Bone Marrow Xenografts in NOG Mice

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Multiple myeloma and occupational exposures: a population-based case-control study.

Sunita Ghosh¹, John R McLaughlin, John J Spinelli

¹Experimental Oncology, Alberta Health Services-Cancer Care, Edmonton, Alberta, Canada.

Journal of Occupational and Environmental Medicine

|June 10, 2011

Summary

Occupational exposures to coal dust, and long-held jobs as a carpenter or machinist, may increase the risk of developing multiple myeloma (MM). A family history of cancer also elevates MM risk in Canadian men.

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Area of Science:

Epidemiology
Occupational Health
Cancer Research

Background:

Multiple myeloma (MM) is a cancer of plasma cells.
Identifying occupational risk factors for MM is crucial for prevention strategies.

Purpose of the Study:

To investigate occupational exposures linked to the incidence of multiple myeloma (MM) in Canadian men.

Main Methods:

A population-based case-control study design was employed.
Data included 342 MM cases and 1506 controls.
Conditional logistic regression analysis was used to determine odds ratios (OR) and confidence intervals (CI).

Main Results:

Exposure to coal dust was associated with an increased MM incidence (OR 1.7, 95% CI 1.2-2.4).
Long-term occupations as a carpenter (OR 3.2, 95% CI 1.4-7.1) or machinist (OR 2.4, 95% CI 1.0-5.8) showed significantly higher MM risk.
A family history of cancer was also linked to increased MM risk (OR 1.4, 95% CI 1.1-1.8).

Conclusions:

Coal dust exposure, prolonged work as a carpenter or machinist, and a family history of cancer may elevate the risk of multiple myeloma in men.
These findings highlight specific occupational and familial factors contributing to MM incidence.