Figure 8-7. T-Scores and Z-Scores.

Figure 8-7T-Scores and Z-Scores

Note: The patient’s BMD is represented by a circle, the young normal mean by the bold horizontal line, each 1 SD difference by the lighter horizontal lines, the age-matched mean by the dashed line, and 1 SD above or below die age-matched mean by the shaded area. This 60-year-old woman is 2 SD below the young normal mean (T-score −2.0) and 0.5 SD below the mean for her age (Z-score −0.5).

Source: ISCD 2003.

From: 8, Assessing the Risk of Bone Disease and Fracture

Cover of Bone Health and Osteoporosis
Bone Health and Osteoporosis: A Report of the Surgeon General.
Office of the Surgeon General (US).
Rockville (MD): Office of the Surgeon General (US); 2004.

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