Some people have met our research nurse, and after discussion have agreed to help us in one special aspect of our work which aims to understand changes in the brain, by indicating that they are willing to donate tissue at post mortem. Interviewers Participants have been visited by more than one interviewer during the last five years. Some were nurses, who may have requested a blood sample. Our only male interviewer was Dr Robinson, who carried out a physical examination on a smaller number of people. Some people will have been seen only twice, whereas others may have had up to five interviews.
Some interviews are longer than others.
At each stage, your responses have been generally very positive. Over five thousand interviews have been carried out, and we are immensely grateful for your continuing participation. We interviewed 1107 men and 1494 women. 321 people were aged 85 and over. Three quarters of them were women.