What T-score range is considered osteopenia according to WHO standards?

• A. -2.5 SD or lower
• B. -1 or better SD
• C. -1 to -2.5 SD
• D. -1.5 to -2.5 SD

Answer: (C)

The T-score range that is considered osteopenia according to the World Health Organization (WHO) standards is defined as a T-score between -1 and -2.5 standard deviations (SD) from the young adult mean. This categorization helps in assessing bone density and the risk of osteoporosis.

A T-score of -1.0 or better indicates normal bone density, while a T-score lower than -2.5 indicates osteoporosis. Therefore, a T-score falling between -1.0 and -2.5 signals that an individual has lower than normal bone density, placing them in the osteopenia category. This distinction is crucial for clinical decision-making and assessing the need for preventive measures or treatment to reduce the risk of fractures.

Understanding these ranges allows healthcare professionals to identify patients who may require further monitoring or intervention to improve bone health and prevent the progression to osteoporosis.