Dawn Mackey led the study. She works at the Pacific Medical Center Research Institute in San Francisco, California. Some women in the study had a high-trauma hip fracture during the period they were observed. These women had about eight percent less bone density than women who did not suffer such breaks. Men with high-trauma fractures had about six percent less bone density than the other men.
Miz Mackey's team found that women with osteoporosis were two times as likely to get each kind of fracture than other women. Men who had osteoporosis were three times as likely as other men.