| Bone mineral density of the spine, hip and distal forearm in representative samples of the Japanese female population: Japanese Population-Based Osteoporosis (JPOS) Study. | |
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MedLine Citation:
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PMID: 11527049 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Low bone mineral density (BMD) is one of the most important elements for the diagnosis of osteoporosis and screening people with higher risk of fractures. To establish the criterion value of BMD for the diagnosis of osteoporosis and to estimate the prevalence rate of osteoporosis in Japanese women, we performed a Japanese population-based osteoporosis (JPOS) study. The subjects were 4550 women aged 15 through 79 years randomly selected from seven municipalities throughout Japan. The sample size was determined to ensure that the observed mean BMD would remain within 2.5% from the real value with a probability of 0.95 in each of the 5-year age groups. The study comprised bone mass measurements by dual-energy X-ray absorptiometry at the spine (L2-4), hip and distal forearm, body size measurements and detailed interviews on medical and gynecologic history. After excluding those subjects with apparent or suggested abnormalities affecting bone mass from 3985 women (87.6%) who completed the study, 3465 women remained and served as the subjects. We present 5-year age-specific mean values of BMD and cut-off values for the diagnosis of osteoporosis according to World Health Organization (WHO) and the Japanese Society of Bone and Mineral Research (JSBMR) criteria. The cut-off levels at the spine and the distal radius proposed in this study were similar to those proposed by the JSBMR but the cut-off level at the femoral neck in this study was 4.7% higher than that of the JSBMR. The prevalence rates of osteoporosis according to WHO criteria in the present subjects aged 50 through 79 years were calculated as 38.0% at the spine, 11.6% at the femoral neck and 56.8% at the distal one-third site of the radius, and those in the Japanese female population of the same age were estimated to be 35.1%, 9.4% and 51.2%, respectively. A fivefold difference was observed among the prevalence rates at different skeletal sites, which suggests that the different definitions of osteoporosis should be established for the different skeletal sites. The prevalence rate diagnosed at the femoral neck seemed to be lower in the present study than those reported for Caucasians. This might account for a lower incidence rate of hip fracture in Japanese women. |
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Authors:
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M Iki; S Kagamimori; Y Kagawa; T Matsuzaki; H Yoneshima; F Marumo |
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Publication Detail:
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Type: Journal Article; Multicenter Study; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA Volume: 12 ISSN: 0937-941X ISO Abbreviation: Osteoporos Int Publication Date: 2001 |
Date Detail:
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Created Date: 2001-08-30 Completed Date: 2001-10-11 Revised Date: 2007-11-15 |
Medline Journal Info:
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Nlm Unique ID: 9100105 Medline TA: Osteoporos Int Country: England |
Other Details:
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Languages: eng Pagination: 529-37 Citation Subset: IM |
Affiliation:
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Department of Public Health, Kinki University School of Medicine, Osaka-Sayama, Osaka, Japan. masa@med.kindai.ac.jp |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Absorptiometry, Photon
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methods Adolescent Adult Age Factors Aged Body Mass Index Bone Density / physiology* Female Forearm / physiology Hip Joint / physiology Humans Japan / epidemiology Middle Aged Osteoporosis, Postmenopausal / diagnosis*, ethnology, physiopathology Prevalence Reference Values Sample Size |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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