It is reported that (TOI, 31st Jan, 2017) half the cancer
patients are in 60 plus age group. It is not unexpected. Cancer is a known old
age disease.
There is large increase in the life expectancy of population over the
years, i.e., the 2014 world average life expectancy is 71.5years compared to
the 1950 world average life expectancy of 48years. Since the latency period (waiting
period from induction to development of malignant tumour) of cancer is 20 to 40
years, cancer is seen, in general, after well past 50 years of age. Cancer
fatality rate is thus increased, numerically!
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