Men who have a brother with prostate cancer are more likely than other men to be diagnosed with the disease, but the reason may have more to do with greater surveillance than genetics, a new study suggests.
Swedish researchers analyzed data from 22,511 brothers of 13,975 prostate cancer patients and found that the incidence of the disease was higher among brothers of prostate cancer patients than men of the same age in the general population. Disease incidence was highest among men who had two brothers with prostate cancer.
However, the study found that early-stage disease was the type most often diagnosed in brothers of prostate cancer patients.