Introduction / Barrie M. Margetts and Michael Nelson -- Pt. A. The scientific concepts underlying study design. 1. Overview of the principles of nutritional epidemiology / Barrie M. Margetts and Michael Nelson. 2. Design, planning, and evaluation of nutritional epidemiological studies / Michael Nelson and Barrie M. Margetts. 3. Sampling, study size, and power / Tim J. Cole. 4. Covariate measurement errors in nutritional epidemiology: effects and remedies / David Clayton and Caroline Gill -- Pt. B. The measurement of exposure and outcome. 5. Food consumption, nutrient intake, and the use of food composition tables / Clive E. West and Wija A. van Staveren. 6. Assessment of food consumption and nutrient intake / Michael Nelson and Sheila A. Bingham. 7. Biochemical markers of nutrient intake / Chris J. Bates, David I. Thurnham and Sheila A. Bingham [et al.]. 8. The validation of dietary assessment / Michael Nelson.

9. Socio-demographic and psycho-social variables /Sally Macintyre and Annie Anderson. 10. Anthropometric measures / Stanley J. Ulijaszek. 11. Gene-nutrient interactions in nutritional epidemiology / Lenore Kohlmeier, David DeMarini and Walter Piegorsch -- Pt. C. The design of nutritional epidemiological studies. 12. Ecological studies / Janet E. Hiller and Anthony J. McMichael. 13. Cross-sectional studies / Janet E. Cade. 14. Cohort studies / Michael L. Burr and Clive Osmond. 15. Case-control studies / Hazel Inskip and David Coggon. 16. Experimental studies: clinical trials, field trials, community trials, and intervention studies / Barrie M. Margetts and Ian L. Rouse.