a1 Institute of Internal Medicine and Metabolic Disease, 2nd Medical School, Via Sergio Pansini 5, Nuples 80131, Italy
The relationship between diet and the development of chronic disease still remains a controversial area. One major difficulty is to obtain a valid estimate of habitual pattern and level of food consumption for each individual. There is, in fact, a voluminous and largely negative literature on the validity of dietary assessment methods. In the present paper the utility of the most frequently used dietary assessment method in epidemiological studies is discussed in terms of precision and accuracy.
(Received May 22 1989)
(Accepted November 15 1989)