<P> Osteoporosis becomes more common with age . About 15% of white people in their 50s and 70% of those over 80 are affected . It is more common in women than men . In the developed world, depending on the method of diagnosis, 2% to 8% of males and 9% to 38% of females are affected . Rates of disease in the developing world are unclear . About 22 million women and 5.5 million men in the European Union had osteoporosis in 2010 . In the United States in 2010, about eight million women and one to two million men had osteoporosis . White and Asian people are at greater risk . The word "osteoporosis" is from the Greek terms for "porous bones". </P> <P> Osteoporosis itself has no symptoms; its main consequence is the increased risk of bone fractures . Osteoporotic fractures occur in situations where healthy people would not normally break a bone; they are therefore regarded as fragility fractures . Typical fragility fractures occur in the vertebral column, rib, hip and wrist . </P> <P> Fractures are the most dangerous aspect of osteoporosis . Debilitating acute and chronic pain in the elderly is often attributed to fractures from osteoporosis and can lead to further disability and early mortality . These fractures may also be asymptomatic . The most common osteoporotic fractures are of the wrist, spine, shoulder and hip . The symptoms of a vertebral collapse ("compression fracture") are sudden back pain, often with radicular pain (shooting pain due to nerve root compression) and rarely with spinal cord compression or cauda equina syndrome . Multiple vertebral fractures lead to a stooped posture, loss of height, and chronic pain with resultant reduction in mobility . </P> <P> Fractures of the long bones acutely impair mobility and may require surgery . Hip fracture, in particular, usually requires prompt surgery, as serious risks are associated with it, such as deep vein thrombosis and pulmonary embolism, and increased mortality . </P>

Which type of bone fracture is associated with osteoporosis
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