The British National Diet and Nutrition Survey of people aged 65 years or over:protocol and feasibility study

摘要

The present paper reports the protocol and some outcomes of a feasibility study of the British National Diet and Nutrition Survey (NDNS) of people aged 65 years or over. The feasibility study was carried out in February and March 1994 in order to develop and test all components of the protocol for the main survey. The fieldwork for the main survey takes place over 12 months and began in October 1994.