Selenium Nutritional Status of Rural Residents and Its Correlation with Dietary Intake Patterns in a Typical Low-Selenium Area in China.
Selenium Nutritional Status of Rural Residents and Its Correlation with Dietary Intake Patterns in a Typical Low-Selenium Area in China.
复制标题
我国典型低硒地区农村居民硒营养状况及其与膳食摄入模式的相关性
作者：
Wang X;Li H;Yang L;Kong C;Wang J;Li Y
我国是公认的缺硒国家，硒的营养摄入一直备受关注。为了解黄土高原低硒区居民硒营养现状及膳食消费特点，在黄土高原典型低硒区陕西省宾县采集人发和粮食样品，进行食物频率问卷调查。本研究的受试者数量为85例，年龄范围为11 - 81岁，平均年龄为60岁。结果表明，居民发硒平均含量为231.7 μg/kg，超过缺硒阈值（200 μg/kg）者占62.4%。在调整大米外购后，发硒含量与食物消费得分呈显著正相关。根据系统聚类分析，注意到三种不同的饮食模式。本研究为低硒地区居民硒营养状况的评价提供了一种工具，对改善居民的膳食结构具有重要意义。
China is recognized as a selenium-deficient country, and nutritional selenium intake has always been a concern. To clarify the current inhabitants’ selenium nutrition status and the characteristics of dietary consumption in low-selenium areas, samples of human hair and grains were collected, and food frequency questionnaires were administered in Binxian County, Shaanxi Province, a typical low-selenium area in the Loess Plateau. The subject number of the study is 85, and the age range is from 11 to 81 years, with an average of 60. The results showed that the average hair selenium content of the residents was 231.7 μg/kg, and 62.4% of the participants had levels higher than the selenium deficiency threshold (200 μg/kg). There was a significant positive correlation between the hair selenium content and the food consumption score after adjusting for rice outsourcing. Three different dietary patterns were noted according to hierarchical cluster analysis. This study provides a tool for assessing the selenium nutrition of inhabitants in low-selenium areas and has considerable significance for improving the dietary pattern of residents.