Cutaneous malignant melanoma incidence and mortality trends in Canada: A comprehensive population-based study

Publication date: February 2019

Source: Journal of the American Academy of Dermatology, Volume 80, Issue 2

Author(s): Feras M. Ghazawi, Janelle Cyr, Rami Darwich, Michelle Le, Elham Rahme, Linda Moreau, Elena Netchiporouk, Andrei Zubarev, Osama Roshdy, Steven J. Glassman, Denis Sasseville, Ivan V. Litvinov

Background

The incidence of cutaneous malignant melanoma (CMM) is on the rise in many parts of the world. However, there is limited knowledge on the epidemiology of CMM in Canada.

Objective

To conduct a comprehensive population-based study of CMM in Canada.

Methods

We examined patient clinical and pathologic characteristics as well as the incidence and mortality trends of CMM in Canada using 3 independent population-based registries.

Results

In total, 72,565 Canadian patients were given CMM diagnoses during 1992-2010; 47.5% were women. Average age at the time of diagnosis was 56.5 years for women and 60.4 years for men. We report a steady increase in CMM incidence and mortality rates in both sexes. The overall incidence rate of CMM in Canada was 12.29 cases/100,000 person-years. We also report important differences in the incidence and mortality rates between Canadian provinces and territories; the highest incidence of this cancer was documented in Nova Scotia and Prince Edward Island.

Limitations

Data on race, clinical disease stage, and Breslow depth of CMM was not available.

Conclusion

This study, for the first time, defines the disease burden of CMM in Canada and highlights important longitudinal, geographic, and spatial differences in the distribution of CMM in this country.

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