NB: see for additional assessments: here

Lifelines collects questionnaire data, measurements, and biological samples from the entire cohort in rounds or waves called general assessments. Underage participants follow a similar, but modified timeline.

The following general assessments have been completed for adults:

• 1A Baseline assessment with questionnaires, measurements, and biosamples (2007-2013)
• 1B Follow-up questionnaire (2011-2014)
• 1C Follow-up questionnaire (2012-2015)
• 2A Second assessment with questionnaires, measurements, and biosamples (2014-2017)
• 2B Follow-up questionnaire (2016-2019)

The following general assessment is ongoing:

• 3A Third assessment with questionnaires, measurements, and biosamples (2019-2023)