Blood samples

Blood samples were provided by 19,500 participants. Blood samples were taken using a specially designed blood kit, either by Research Nurses working in General Practice surgeries, or by General Practitioners or their Practice Nurses. The samples are stored frozen in liquid nitrogen until they are required for laboratory analysis. Analyses will examine specific questions on dietary and other factors in relation to long-term health. The results of laboratory analyses will not be sent to participants.

Copyright © EPIC-Oxford