Abstract
bone mineral density of the calcaneus in relation to fractures was studied both retrospectively and prospectively among the 75- and 80-year-old men and women resident in the city of Jyväskylä, Finland, in 1989 and 1990, respectively. The bone measurements were performed at the calcaneus by125I-photon absorption. Retrospective fracture (RF) history after age 50 was collected by questionnaire and interview, and reported fractures were checked from medical records. In the retrospective study, in the 75-year-olds a fracture was found in 22% (n=22) of men and in 45% (n=84) of women. The corresponding figures for the 80-year-olds were 16% (n=9) and 35% (n=48). Over half of the fractures were of the wrist/hand or ankle/leg. Prospective fractures (PF) were recorded over periods of 29–34 months. Twenty of the 75-year-olds and 16 of the 80-year-olds sustained a fracture during the follow-up period. In the 75-year-olds, the results showed that both RF and PF women, together with the RF men, had lower bone area density (BMDa) and volume density (BMDv) than the non-fracture (NF) subjects (p=0.001–0.011). In the 80-year-olds, significantly lower BMDa was found in the RF women (p=0.008) and lower BMDv in the PF women (p=0.024) compared with the NF subjects. During the follow-up period there were no fractures in either of the sex or age groups among those with BMDa and BMDv values greater than 1 SD above the mean. When using logistic regression analysis, BMDv alone explained about 60% of overall fracture probability among the women studied.
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Cheng, S., Suominen, H., Era, P. et al. Bone density of the calcaneus and fractures in 75- and 80-year-old men and women. Osteoporosis Int 4, 48–54 (1994). https://doi.org/10.1007/BF02352261
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DOI: https://doi.org/10.1007/BF02352261