The overall incidence rate of all primary brain tumors was 15.80/100,000 person-years in females and 14.33/100,000 person-years in males.[ 2 ] The incidence of central nervous system tumors in India ranges from 5 to 10/100,000 population with an increasing trend and accounts for 2% of malignancies.[ 3 ] A recent study showed an increase in gliomas, but not meningiomas, in workers concurrently exposed to chemical solvents, pesticides or lead, and low-frequency electromagnetic fields.[ 4 ] Several studies have examined the association of brain tumors in adults with cured meat and fruit/vegetable consumption with widely inconsistent results.[ 5 ] Nitrite exposure has been hypothesized as an explanation for the association of both cured meat and fruits/vegetables.
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Effect of lifestyle and dietary factors in the development of brain tumors.
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