Population aging has also led to a dramatic increase in the number of individuals with osteoporosis. In the period 1996 to 1998, 3.2 million people (1.2% of the population) indicated they had these conditions, but by 2009 to 2011, 6.4 million (2.1% of the population) reported having them. These numbers are substantially lower than numbers reported in other sources, even though the category in this chapter is not limited to osteoporosis-related conditions. In 2002, the National Osteoporosis Foundation projected 44 million persons had osteoporosis. More than two-fifths of persons in the MEPS with these conditions are age 45 to 64 years, increasing the likelihood that these individuals will suffer from falls and fractures for the relatively long future they can expect to live with this condition. (Reference Table 10.1.1 PDF CSV)