Assessment 4A or “Fourth Assessment” is the fourth general assessment of Lifelines.
Assessment 4A will be performed between 2024 and 2028.
Assessment 4A was preceded by general assessments 1A, 2A, and 3A.

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

• 4A Visit 1 (physical measurements)
• 4A Visit 2 (blood and urine samples)

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

• 4A MINI
• 4A Questionnaire 1
• 4A Questionnaire 2
• 4A Questionnaire 3

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

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