Why women’s ice hockey has a higher concussion rate than football

A new finding revealed that rates of concussion are higher in women’s collegiate sports than in men’s.
This sparked my interest and brings up the question; Why do female athletes, who play the same sport at the same level as men, report higher concussion rates?
There are several reasons that have been suggested including reporting bias, playing style, hormonal differences, neck strength, and nerve fiber structure, according to this article.