Abstract
This report describes details of the sampling method and background of the population selected for bone density measurements.
A list of inhabitants aged 40 to 79 years in Miyama Village, Wakayama Prefecture, was compiled based upon resident registration as of December, 1988. 1543 subjects consisting of 716 males and 827 females were identified. In order to measure bone density, a total of 400 subjects consisting of 200 males and 200 females were recruited from this list. Most were recruited from a centralized community and the remainder came from nearby areas, to give 50 people in each of eight age-sex groups. All of the selected people were contacted and agreed to participate. In Miyama Village, two large projects in relation to cancer and circulatory diseases are also being carried out as a part of national projects. As a consequence, Various information such as clinical history, personal history, blood analysis and so forth could be obtained for subjects who underwent bone density measurements. From these data, it was found that the percentages for smokers, drinkers and hypertensive subjects were similar to those of other communities and also to those in a nationwide survey. Moreover, we observed no abnormalities in serum calcium and phosphorus levels referable to bone turnover.
These facts suggest that a representative sample population for measurements of bone density was drawn from the community.
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Kasamatsu, T., Morioka, S., Hashimoto, T. et al. Epidemiological study on the bone mineral density of inhabitants in Miyama Village, Wakayama prefecture (Part I) background of study population and sampling method. J Bone Miner Metab 9 (Suppl 1), 50–55 (1991). https://doi.org/10.1007/BF02375934
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DOI: https://doi.org/10.1007/BF02375934