Fig. 4From: Twelve-year follow-up study after endoscopic sinus surgery in patients with chronic rhinosinusitis with nasal polyposisThe percentage of NP recurrence, divided by the presence or absence of allergic sensitization, asthma and AERD are shown in a. Panel b shows the percentage of patients with revision surgery, divided for the presence or absence of allergic sensitzation, asthma and AERD. *P < 0.05Back to article page