The phrase "treatment initiation" refers to the beginning or start of a medical treatment or therapy for a person's condition or illness. Full definition
Patients and their spouses individually completed questionnaires within 1 month of treatment initiation (baseline) and at 3 - and 6 - month follow - up. (link.springer.com)
However, this advantage did not persist beyond treatment initiation. (cebc4cw.org)
Patients and their spouses completed questionnaires within 1 month of treatment initiation (baseline) and at 6 - month follow - up. (academic.oup.com)