From a post at Change.org:
According to a study (pdf) by the Commonwealth Fund, in 2007, 33 percent of working-age women, compared to 25 percent of men, faced medical bills that left them unable to pay for food, rent or heat; caused them to take out a mortgage on their home or take on credit card debt; or used up all their savings. Economists can’t agree on the precise number, but medical expenses account for somewhere between one third and two thirds of bankruptcies in the U.S. The damage isn’t just financial — once the debt is acquired, people are less likely to seek continued care.
This is a US only study, and is influenced in large part by the health care policies and costs here in the US, but I would not be surprised to find that whatever medical costs exist in a country fall disproportionately hard on women with disabilities.