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<section begin="clinical biochemistry" />'''Osteoporosis''' refers to the decreased bone density, which increases the risk for [[Fracture|fractures]]. It’s defined according to the results of a DEXA (dual-energy x-ray absorptiometry) scan. The scan calculates the bone mineral density and gives a T-score. Osteoporosis is defined as a T-score of less than -2,5 standard deviations. This means that a person with osteoporosis has 2,5 standard deviations lower bone density than an average young adult female.
<section begin="clinical biochemistry" />'''Osteoporosis''' refers to the decreased bone density, which increases the risk for [[Fracture|fractures]]. It’s defined according to the results of a DEXA (dual-energy x-ray absorptiometry) scan or by the presence of a [[pathological fracture]]. The DEXA scan calculates the bone mineral density and gives a T-score. Osteoporosis is defined as a T-score of less than -2,5 standard deviations. This means that a person with osteoporosis has 2,5 standard deviations lower bone density than an average young adult female.


T-score between -1 and -2,5 is less severe and is called '''osteopaenia'''.
T-score between -1 and -2,5 is less severe and is called '''osteopaenia'''.