Adult and elderly Lifelines participants participating in general assessment 1A (“Baseline”) received two questionnaires on paper, 1A Questionnaire 1 and 1A Questionnaire 2.
1A Q1 was followed by 1A Visit 1 after, on average, 21 days (SD: ± 33 days).
1A Q1 was followed by 1A Questionnaire 2 after, on average, 53 days (SD: ± 61 days).
1A Q1 is procedurally equivalent to 2A Questionnaire 1 and 3A Questionnaire 1.
The average time between 1A Q1 and 2A Questionnaire 1 was 46 months (SD: ± 14 months).
All questionnaires were filled in on paper:
1A Q1 contained the following sections and subsections:
NB: Only elderly participants (65+) were asked these questions