北京城区老年妇女维生素D营养状况

Vitamin D levels in postmenopausal women in Beijing of China

目的 了解北京城区老年妇女维生素D营养状况.方法 随机选取北京市3个城区17个社区中60岁以上的老年妇女399人,在2008年5轮？旬至7月初采集清晨空腹静脉血分离血清,采用美国DiaSorin公司生产的放射免疫试剂盒测定血25-羟维生素D（25（OH）D）的浓度.结果 在春末夏初,北京市城区老年妇女血清25（OH）D平均水平为（14.4±5.7）ng/ml,维生素D缺乏率（25（OH）D〈10 ng/ml）为21.8%,维生素D不足率（10 ng/ml≤25（OH）D〈20 ng/ml）为62.4%;从5月到7月,研究对象血清25（OH）D水平逐渐升高.而随着年龄的增大,血清25（OH）D水平有下降的趋势.结论 北京市城区老年妇女维生素D不足的现象比较普遍.

Objective To assess vitamin D status in elderly women in Beijing. Methods A total of 399 community-dwelling women （mean age 69 years） were selected randomly from 17 communities in 3 Beijing areas. Fasting blood samples were collected in the morning from middle May to early July and were subsequently centrifuged. Serum 25-hydroxyvitamin D （25 （OH）D） was measured by radioimmunoassay using the Immunodiagnostic Systems assay （DiaSorin, America）. Results The average serum 25 （OH）D level was 14.4 ± 5.7 ng/ ml （mean ± standard deviation） in late spring and early summer. The percentage of vitamin D deficiency was about 21.8% and the prevalence of serum 25 （OH） D insufficiency was 62.4% ; serum 25 （OH） D concentration increased from May to July and had an increased trend with age. Conclusions The prevalence of vitamin D inadequacy of the elderly women in Beijing was common.