<unk>  is defined as a disease state with a T-score of less than -2.5 for decreased bone mineral density on a DEXA scan.<unk>  may be primary (without any underlying cause) or secondary (having an underlying cause).
Osteoporosis classification scheme
Osteoporosis epidemiology and demographics
Vitamin D deficiency classification
MAYO risk score
Osteoarthritis epidemiology and demographics
Parkinson's disease epidemiology and demographics
Vitamin D deficiency epidemiology and demographics
Peripheral arterial disease epidemiology and demographics