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探讨了166名55～89岁城市男子的脚趾甲硒含量与硒摄入及其它膳食因素的关系。要求受试者记录1984年4月～9月6个月间24d(每周记录1d食物消费量,代表1周各天的量)的食物消费量,并用国立公共卫生研究所建立的计算机—项目系统将每日食物消费量换算成营养素的摄入量。在研究进行的初期、中期和晚期询问受试者补硒情况。在最后一次膳食调查结束后9～10个月,收取受试者的脚趾甲,
To investigate the relationship between selenium content and selenium intake and other dietary factors in 166 male urbanites aged 55-89 years. Subjects were asked to record their food consumption at 24 days from April to September 1984 (a record of 1-day food consumption per week, representing the amount of each day of the week) between April 1984 and September, and a computer-based project established by the National Institute of Public Health The system converts daily food consumption into nutrient intake. Subjects were asked their selenium supplementation during the initial, mid-term and advanced stages of the study. At the end of the last meal survey 9 to 10 months, subjects were asked toenail,