Fig. 4From: Biologic use and treatment patterns in patients with chronic rhinosinusitis with nasal polyps: a US real-world studyFirst biologic use before and after surgery. “Patients with biologic use” was measured at any point during the study period among patients with sinus surgery during the observation period. Complete patient history before the study period was not available in the database; therefore, patients recorded as having no biologic use or sinus surgery may have received these before the study periodBack to article page