Sampling
Sampling in the Lc65+ study follows a simple random selection of eligible individuals.
The whole Lausanne population in the study age range at each enrollment wave (2004: birth year 1934-1938, 2009: birth year 1939-1943, 2014: birth year 1944-1948) is randomly dispatched between the Lc65+ study and another study of cardiovascular diseases (CoLaus study).
The sequence of subject selection for C1, C2, and C3 samples and their participation in the baseline data collection is detailed below. The C4 sample is currently under development.
