Silver Book Fact
An estimated 30% of postmenopausal white women have osteoporosis and 54% have osteopenia. By the age of 80, that number increases to an estimated 70% of white women with osteoporosis and 27% with osteopenia.
Melton J. How Many Women Have Osteoporosis Now?. J Bone Miner Res. 1995; 10(2): 175-7. http://www.ncbi.nlm.nih.gov/sites/entrez?db=pubmed&uid=7754796&cmd=showdetailview&indexed=google