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Open Access Research article

Normative data of bone Mineral Density in healthy population of Tehran, Iran: A Cross sectional study

Bagher Larijani*, Arash Hossein-Nezhad, Alireza Mojtahedi, Mohammad Pajouhi, Mohammad H Bastanhagh, Akbar Soltani, Seyed-Zahra Mirfezi and Roya Dashti

Author Affiliations

Endocrinology & Metabolism Research Center, Tehran University of Medical Sciences, Fifth floor, Dr. Shariati Hospital, North Kargar Ave, Tehran, 14114, Iran

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BMC Musculoskeletal Disorders 2005, 6:38  doi:10.1186/1471-2474-6-38

Published: 2 July 2005

Abstract

Background

Osteoporosis is a major problem and is a hidden epidemic disease in the world. Early diagnosis by measurement of Bone Mineral Density (BMD) and treatment can prevent and reduce disease complications, especially fractures. As there is no comprehensive study in Iran, this study designed to assess BMD discrepancy in 20–69 yr Tehran population as well as prevalence of osteoporosis and osteopenia.

Methods

553 people (34% men, 66%women) from 50 Blocks in Tehran randomly selected. The assessment of BMD in spine and femur region performed through DXA method. All subjects clinically examined and their BMIs determined.

Results

The average spinal BMD score in men were more than in women. The peak bone mass of spine bone both in men and women occurred during 20–29 yr and reduction began from the age of 40. At the age of 60 to 69, loose of bone density was 19.6% in lumbar spine and 18.5% in femur of women and also 7.9% in lumbar spine and 14.6% in femur of men. Prevalence of osteoporosis in this age group in lumbar spine and femur was 32.4% and 5.9% in women and 9.4% and 3.1% in men respectively.

Conclusion

In all age groups, peak bone mass was lower than European or American population, whereas the rate of bone loss was as much as the some population and actually this process justifies the prevalence of osteoporosis and osteopenia in Tehran population.