Although males are less likely to develop osteoporosis than females, they can develop osteoporosis with advancing age or the presence of certain risk factors.
Paramaters:
(1) age of the patient
(2) T-score (bone density compared to that of a young male)
(3) Z-score
(4) risk factors for fracture
(5) secondary cause for low bone mineral density (BMD)
Age of the Patient
Scores
Other
Diagnosis
any
T-score < - 1 SD
secondary cause
osteoporosis
< 50
Z score < - 2 SD, T score <= -2.5 SD
< 50
Z score –1.01 to –2 SD
osteopenia
50 to 64
T score <= - 2.5 SD at both spine an dhip
risk factors for fracture
osteoporosis
>= 65
T score < - 1 SD
osteoporosis
where:
• Some authors use only the Z score when evaluating a male < 50 years of age, while others recommend using both the Z and T scores.
A patient who does not meet the criteria for osteoporosis but with a T score < -1 SD has osteopenia.
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