남성의 발병률은 37.1%, 여성의 발병률은 62.9%로 남성보다 여성에게서 양성 종양이 거의 두 배 더 자주 발생했다.
The incidence in males was 37.1% and the incidence in females was 62.9%, indicating benign tumors developed nearly twice more frequently in females than in males.