By Age Group
Cancer deaths data are derived from the Ontario Cancer Registry (OCR) operated by Cancer Care Ontario. The OCR contains information on Ontario residents who have died of all types of malignant cancers. Cancer sites were coded using the Third Edition of the International Classification of Diseases for Oncology (ICDO-3).
In 2012 357 Simcoe Muskoka residents died of lung cancer with an age-standardized mortality rate for all ages and both sexes of 45 (40.3, 49.8) per 100,000 population. This was significantly higher than the Ontario lung cancer mortality rate of 37 (36.3, 38.1) per 100,000. Lung cancer is the leading cause of cancer deaths in both Simcoe Muskoka and Ontario.
Figure one below shows the trend in lung cancer mortality in both Simcoe Muskoka and Ontario over the twenty-seven year period from 1986 to 2012. The lung cancer mortality rates both in Simcoe Muskoka and Ontario decreased significantly over this time period, with an average annual percentage decrease of close to one per cent per year. The Simcoe Muskoka rate was consistently above the Ontario rate over this twenty-seven year time-period.
In 2012, the age-standardized mortality rate for lung cancer among Simcoe Muskoka males was 49 (41.0, 55.7) per 100,000, which was not significantly different from the female rate of 43 (36.8, 49.8) per 100,000. The 2012 age-standardized lung cancer mortality rates for Ontario males was not significantly different from the rate for Simcoe Muskoka males; however, the Ontario lung cancer mortality rate for females was significantly lower than the comparable Simcoe Muskoka rate.
Figure two shows the trend in lung cancer mortality rates for males and females in Simcoe Muskoka over the twenty-seven year period between 1986 and 2012. The lung cancer mortality rates for males and females in Simcoe Muskoka demonstrated opposite trends over this time period, with male rates declining significantly and female rates increasing significantly. The male lung cancer mortality rates were more than triple the females rates in the late 1980’s and early 1990’s and remained significantly higher than the female rates until the mid-2000’s; however, since 2008 the lung cancer mortality rates for males and females in Simcoe Muskoka have not differed significantly. This pattern can be explained by different long-term smoking trends for men and women over the past century, with smoking rates peaking in women in the late 1970’s, nearly 20 years after smoking rates peaked in men.
By Age Group
Lung cancer mortality increases significantly with age (see figure three). The age-specific lung cancer mortality rates between 2007 and 2012 (combined) in Simcoe Muskoka were highest among those 75 years and older at 361 (335.7, 489.9) deaths per 100,000 population. The age-specific lung cancer mortality rates in Simcoe Muskoka were significantly higher than the comparable provincial rates for all age groups among adults 45 years of age and older.
The age-specific lung cancer mortality rates for Simcoe Muskoka males and females have demonstrated different patterns over the past quarter of a century. The male lung cancer mortality rates have declined significantly in all age groups for adults 45 years of age and older when comparing the period of time from 1986 to 1991 with the period from 2007 to 2012 (see figure four). Among Simcoe Muskoka females, lung cancer rates have remained the same for adults 45 to 64 years of age across these same time intervals; however, rates have increase significantly among female seniors, particularly for seniors 75 years of age and older (see figure five).