would not allow them to participate, 2 were born in years other than 1936, and the remaining 59 were ineligible due to their country of schooling. 'Interested' responses were received from 1351 individuals (79.3% of the responses), although 83 of these were ineligible, 11 had not taken part in the Scottish Mental Survey of 1947, and a further 125 did not wish to participate after hearing more about the study. That left 1132 people who were both interested and eligible to take part in the LBC1936 study.
