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目的:观察献血频次对献血者骨密度的影响。方法:选择长期频繁机采捐献血小板者29例为观察组,单次机采血小板献血者24例为对照组。比较两组采血后髋关节和第2～4腰椎骨密度水平及采血前中后血清钙离子(Ca2+)水平。结果:两组骨密度水平与血清Ca2+水平差异均不显著(P>0.05)。结论:献血频次对献血者骨密度影响不显著。
Objective: To observe the influence of blood donation frequency on bone mineral density of blood donors. Methods: Totally 29 long-term and frequent machine-donated platelets were selected as the observation group, 24 cases of single-platelet-donated blood platelet donors as the control group. The bone mineral density (BMD) of the hip and the 2nd to 4th lumbar spine and the level of serum calcium (Ca2 +) before and after blood collection were compared between the two groups. Results: There was no significant difference between the two groups in bone mineral density and serum Ca2 + level (P> 0.05). Conclusion: The frequency of blood donation has no significant effect on the BMD of blood donors.