Assessment 3A or “Third Assessment” is the third general assessment of Lifelines.
Assessment 3A will be performed between 2019 and 2023.
Assessment 3A was preceded by general assessment 1A and general assessment 2A.
NB: during the 2020-21 Covid pandemic, 3OR visits were temporarily halted due to government-issued lockdowns.

• Lockdown 1: 15-03-2020 to 06-07-2020
• Lockdown 2: 19-12-2020 to 02-03-2021 (at least)

For all participants, assessment 3A consists of the following elements:

• 3A Visit 1 (physical measurements)
• 3A Visit 2 (blood and urine samples)

For adult and elderly participants, this assessment also consists of the following elements:

• 3A MINI
• 3A Questionnaire 1
• 3A Questionnaire 2
• 3A Questionnaire 3

For children, this assessment also consists of the following elements:

• 3A Child Questionnaire (4-12y)
• 3A Youth Questionnaire (13-17y)