The stated purpose of the study discussed here was to investigate the relationship of socio-economic factors to both nutrient intake and nutritional status using data gathered in Kent from September 1968 to March 1970; for each child in the study, information collected comprised a weighed diet record, a socio-economic questionnaire, and a medical examination. [Available from British Medical Association, Tavistock Square, London, WCIH 9 JR, England]. (Author/JM)