In this section, all variables are listed that assess whether Lifelines participants were ever hospitalized, took medication, were treated by a healthcare professional or had any surgery.
Note that some additional variables assessing medical treatments for specific diseases and symptoms can be found here.

1. Dentistry
2. Hospitalization
3. Medication
4. Medication (Covid-19)
5. Medication (ATC)
6. Medication adherence (PROMAS)
7. Surgery
8. Treatment (general)
9. Vaccination
10. Vaccination (Covid-19)