Reproductive Factors Affecting the Bone Mineral Density in Postmenopausal Women
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- Ozdemir Ferda
- Physical Medicine and Rehabilitation Department, Trakya University School of Medicine
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- Demirbag Derya
- Physical Medicine and Rehabilitation Department, Trakya University School of Medicine
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- Rodoplu Meliha
- Physical Medicine and Rehabilitation Department, Trakya University School of Medicine
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Osteoporosis has been defined as a metabolic bone disease characterized by a loss of bone mineral density (BMD) greater than 2.5 standard deviations below young adult peak bone mass or the presence of fracture. By considering that some factors related to female reproductive system might influence the ultimate risk of osteoporosis, we aimed to investigate if a relationship exists between the present BMD of postmenopausal women with their past and present reproductive characteristics. The present study focused on how BMD could be affected by the following factors in postmenopausal women, such as age at menarche, age at first pregnancy, the number of pregnancies and total breast-feeding time. We reviewed detailed demographic history of 303 postmenopausal women. According to the results of the present study, a negative correlation was found between the number of parities and BMD. The BMD values decreased as the number of pregnancies increased. When the BMD values for lumbar vertebrae 2 and Ward's triangle were investigated, it was observed that a significant difference exists between the women with no child birth and those with more than five parities. There was a significant relationship between age at first pregnancy and BMD values at the lumbar vertebrae 2 and Ward's triangle. Women who had five or more abortions were found to have significantly lower spine BMD values compared to women who had no abortions or women who had one or two abortions. These findings indicate that the increased risk of osteoporosis is associated with the increased number of pregnancies and abortions and higher age at first pregnancy.
収録刊行物
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- The Tohoku Journal of Experimental Medicine
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The Tohoku Journal of Experimental Medicine 205 (3), 277-285, 2005
東北ジャーナル刊行会
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詳細情報 詳細情報について
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- CRID
- 1390282679216124032
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- NII論文ID
- 10014378144
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- NII書誌ID
- AA00863920
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- ISSN
- 13493329
- 00408727
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- PubMed
- 15718820
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- PubMed
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可