The phrase "decreased incidence" means there is a decrease in how often something, usually a negative event or condition, occurs.
Sentences with «decreased incidence»
It significantly decreases the incidence of breast cancer in females and prostate disease in males. (onpets.com)
While successful management of stress and provision of preventive medicine can dramatically decrease the incidence of this troubling condition, it can still spiral into serious disease. (chewonthis.maddiesfund.org)
Increasing the number of cats who are spayed or neutered decreases the incidence of virus transmission. (alleycat.org)