"higher incidences of" is correct and usable in written English.
You can use it when you want to talk about an increase in the frequency or occurrence of something. For example, "We have seen higher incidences of serious illness in this area in recent years."
Complicated grief has been linked to higher incidences of drinking, cancer and suicide attempts.
Muslim women have always experienced higher incidences of anti-Muslim violence than men.
Combat veterans have been linked to higher incidences of drug and alcohol abuse, domestic violence, depression and unemployment.
Psychologists are reporting higher incidences of anxiety, with people keen to talk about how they might cope with Brexit.
German researchers have found higher incidences of distraction and forgetfulness can be explained by a variation of a dopamine receptor gene that occurs within 75% of people.
A 2016 report by Age UK noted there are higher incidences of loneliness in cities, but precisely what brings it on is surprising.
Here, it was observed that the PD-C group had markedly higher incidences of urgency and nocturia than PD-NC group (Supplemental Table 2).
This, in turn, heightens the risk of diarrhea and other forms of infection and disease, which are linked to higher incidences of malnutrition.
She said Mr. Plouffe wanted to examine Uber's impact on rural markets as well, where there are often higher incidences of drunken driving than in urban markets.
In the past few years, higher incidences of outbreaks caused by MDR Salmonella have been increasingly documented.
And, studies show, they will likely face more resistance from patients around following treatment protocols, as well as higher incidences of malpractice suits.
