The bone mineral density change with aging of Japanese women measured by single energy X-ray absorptiometry and dual energy X-ray absorptiometry

Hoshi, Kazuhiko; Yamada, Hisao; Tsukikawa, Susumu; Sugano, Terumasa; Endo, Chikara; Sato, Akira

doi:10.1007/bf02768731

Cited by 5 publications

(3 citation statements)

References 7 publications

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“…The pattern of decline in L-BMD and F-BMD with age is similar in Japanese women (5,13). Bone loss in aging Japanese women is higher than in Caucasian women in the United States, possibly because of the smaller body size of postmenopausal Japanese women and/or a cohort effect (13).…”

Section: Discussionmentioning

confidence: 83%

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Evaluation of bone mineral density of the lumbar spine and proximal femur in population‐based routine health examinations of healthy asians

2004

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Section: Discussionmentioning

confidence: 83%

“…BMD decreased significantly with age, especially in postmenopausal women. Women lose their bone tissue by between 1% and 4% annually during the first 10 years after the menopause (5). In Taiwan, the prevalence of vertebral fractures after age 65 is 18% for women and 12% for men (16).…”

mentioning

confidence: 99%

Evaluation of bone mineral density of the lumbar spine and proximal femur in population‐based routine health examinations of healthy asians

2004

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“…For the purpose of setting the BMDs level at which prophylactic treatment against osteoporosis must be started, the calcaneus BMDs was measured by single energy x-ray absorptiometry (SXA) and the vertebrae (L2-L4) BMDs by dual energy x-ray absorptiometry (DEXA) among Japanese women. The high accuracy of these two measuring methods was already established in the previous study (Hoshi et al 1993). …”

mentioning

confidence: 99%

Calcaneus and Vertebrae Bone Mineral Density Values and Fracture Threshold.

Hoshi

Tsukikawa

Oowada

et al. 1994

Tohoku J. Exp. Med.

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The calcaneus bone mineral density values (BMDs) of healthy Japanese women peaked at 20 to 25 years of age with 435 ± 66 mg/cmz (mean± S.D. ), decreased 0.51% on the average every year thereafter until 45 years of age, 1.72% between 45 and 55 years (menopause) and 0.55% thereafter. The vertebrae bone mineral density value peaked at 30 to 35 years of age with 1.06±0.13 g/cmz (mean ± s.D. ), decreased 0.67% on the average every year thereafter until 45 years of age, 1.23% between 45 and 55 years (menopause) and 0.70% thereafter. Mean -2.0 s.D. of the peak bone mass was considered appropriate as the fracture threshold for both the calcaneus and vertebra, judging from the BMDs of osteoporosis patients.bone mineral density; fracture threshold; osteoporosis; single energy x-ray absorptiometry; dual energy x-ray absorptiometry Osteoporosis is a serious disease that occurs frequently among women of advanced age. Since osteoporosis is a disorder characterized by skeletal fragility due to a quantitative loss of bone mineral or architectural changes that diminish the strength of bone, accurate measurement of the bone mineral density values (BMDs) is necessary for diagnosis and prevention. However, there is no established theory as to when the danger of osteoporosis arises at what degree of decrease in the BMDs. For the purpose of setting the BMDs level at which prophylactic treatment against osteoporosis must be started, the calcaneus BMDs was measured by single energy x-ray absorptiometry (SXA) and the vertebrae (L2-L4) BMDs by dual energy x-ray absorptiometry (DEXA) among Japanese women. The high accuracy of these two measuring methods was already established in the previous study (Hoshi et al. 1993). MATERIALS AND METHODSUsing healthy women in ages ranging from 20 to 75 years old as the subjects, the calcaneus BMDs in 440 women and lumbar vertebrae (L2-L4) BMDs in 233 women were measured by SXA and DEXA, respectively.

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Calcaneus Bone Mineral Density Using Single X-ray Absorptiometry in Japanese Women

Sekioka

Kushida

Yamazaki

et al. 1999

Calcified Tissue International

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Calcaneus bone mineral density (BMD) of 738 Japanese women (605 healthy and 133 with osteoporosis) was measured using single X-ray absorptiometry (SXA). A reference range of calcaneus BMD values for healthy Japanese women was established and the usefulness of this method for screening and diagnosis of osteoporosis was evaluated. There was no significant age change of calcaneus BMD prior to menopause, though values decreased significantly thereafter. BMD loss ratio was 1.7%/year in the 10 years after menopause. The reference range of calcaneus BMD was 410 +/- 43 mg/cm(2), calculated from the mean BMD value of subjects whose ages ranged from 25 to 50 years old. The fracture threshold for the spine was established as 294 mg/cm(2), which corresponded to -2.67 SD from the average BMD of the young healthy women, and the odds ratio for spine fracture in the subjects with BMD lower than this threshold was 3.52 [95% CI (confidence interval) 1.34-9.26]. The spine fracture group showed statistically lower calcaneus BMD than the nonfracture group when subjects with adjusted age and body size were analyzed. There were no significant differences in the ROC analysis for spine fracture between calcaneus BMD and spine BMD. Therefore, calcaneus BMD is not readily affected by degenerative change or soft tissue, and the annual decrement rate (1.7%/year) can be detected easily and with low precision error (0.8%). These indices may prove useful for the screening and diagnosis of osteoporosis.

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The bone mineral density change with aging of Japanese women measured by single energy X-ray absorptiometry and dual energy X-ray absorptiometry

Cited by 5 publications

References 7 publications

Evaluation of bone mineral density of the lumbar spine and proximal femur in population‐based routine health examinations of healthy asians

Evaluation of bone mineral density of the lumbar spine and proximal femur in population‐based routine health examinations of healthy asians

Calcaneus and Vertebrae Bone Mineral Density Values and Fracture Threshold.

Calcaneus Bone Mineral Density Using Single X-ray Absorptiometry in Japanese Women

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