Fig. 3
From: The association between allergy and sinusitis: a cross-sectional study based on NHANES 2005–2006
The relationship between serum total IgE and sinusitis in the NAS group. NAS negative allergy symptoms group. A1 The cumulative incidence of sinusitis when IgE is less than 500 kU/L. For example, the graph depicts that the cumulative incidence of sinusitis for all participants with total IgE less than 200 kU/L is approximately 7.5%. A2 The incidence of sinusitis in the corresponding concentration intervals of IgE