a reduction in the bone density that is more than one standard deviation from the normal bone density; using the T score it is T=-1.0 down to T= -2.4; once the T score is less than 2.4, the patient is defined as having osteoporosis
A condition of moderate loss of bone density or strength. A woman with osteopenia has a risk of broken bones that is higher than normal, but not as high as with the more severe condition, osteoporosis.
Low bone mass. Defined as -1.00 to -2.49 standard deviations below the average peak adult bone mass as determined by a bone mineral density examination. A post menopausal woman with osteopenia is at an increased risk of experiencing a bone fracture.
Mild thinning of the bone mass, but not as severe as osteoporosis . Osteopenia results when the formation of bone (osteoid synthesis) is not enough to offset normal bone loss (bone lysis). Osteopenia is generally considered the first step along the road to osteoporosis, a serious condition in which bone density is extremely low and bones are porous and prone to shatter. Diminished bone calcification, as seen on plain X-ray film, is referred to as osteopenia, whether or not osteoporosis is present. The diagnosis of osteopenia may also be made by a special X-ray machine for bone density testing. See the entire definition of Osteopenia
Reduction in bone mass, usually caused by a lowered rate of formation of new bone that is insufficient to keep up with the rate of bone destruction. Osteopenia often occurs together with amenorrhea and eating disorders in female athletes. It can lead to premature osteoporosis if left untreated.