Occupational exposure is liable for more cases of mesothelioma than secondhand or environmental exposure. Men, that have traditionally worked in industrial trades, are exposed to more asbestos than women. Exposure among women is typically because of secondhand exposure from their spouse. Incidence By Race Mesothelioma predominantly affects Caucasians. Diagnoses in patients of other races is exceedingly rare. Incidence By Age The incidence of mesothelioma is probably to extend as individuals are living longer than they had been 10-20 years back. The disease is most typical in people during the age of 65, mainly due to the latency period related to mesothelioma—it takes anywhere from 20-50 years for tumors to develop. Furthermore, a recent study found that for individuals exposed to asbestos, the chance of developing mesothelioma never goes away and increases as they simply get older.