Suitability of the T-score for establishing bone mineral density categories

The use of different reference ranges may give rise to different T-score values for the same bone mineral density (BMD) value. This study was designed to quantify the differences in the classification of a particular population on the basis of normal ranges obtained from other reference databases. T...

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Bibliographic Details
Published inOsteoporosis international Vol. 11; no. 5; pp. 408 - 410
Main Authors ROIG-VILASECA, D, NOLLA, J. M, ROIG-ESCOFET, D
Format Journal Article
LanguageEnglish
Published London Springer 01.01.2000
Springer Nature B.V
Subjects
Adult
Aged
Aging - physiology
Biological and medical sciences
Bone Density
Bone Diseases, Metabolic - diagnosis
Bone Diseases, Metabolic - physiopathology
Female
Femur Neck - physiopathology
Fractures
Humans
Investigative techniques, diagnostic techniques (general aspects)
Medical sciences
Middle Aged
Osteoarticular system. Muscles
Osteoporosis
Osteoporosis - diagnosis
Osteoporosis - physiopathology
Pathology. Cytology. Biochemistry. Spectrometry. Miscellaneous investigative techniques
Reference Values
Statistics as Topic
Spain
Human
Methodology
Evaluation scale
Reference
Calibration
Test reliability
Ethnic group
Osteoarticular system
Bone mass
Criterion
Database
Densitometry
WHO
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Summary:The use of different reference ranges may give rise to different T-score values for the same bone mineral density (BMD) value. This study was designed to quantify the differences in the classification of a particular population on the basis of normal ranges obtained from other reference databases. The T-scores obtained in a sample of 148 women by applying the Spanish normal range were compared with the normal range obtained in NHANES III for femoral neck. Significant differences were found when T-scores were compared, but there were no differences in categorizations using the WHO criteria. The application of these reference ranges to a female population aged older than 45 years with known BMD showed significant differences in classification. In conclusion, the T-score can vary according to the normal range used as reference, but it has little influence on the categorization of individual patients. However, it may be important when applied to a general population.
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ISSN:0937-941X
1433-2965
DOI:10.1007/s001980070107