Developing Nomograms for Identifying Allergic Rhinitis Among Chronic Rhinitis: A Real-world Study

Abstract

Background It is difficult to discriminate allergic rhinitis (AR) and nonallergic rhinitis (NAR) in clinical practice due to the similar clinical manifestations. The study was to assess both the demographical and clinical features of AR and NAR in the real-world data of outpatients in China Methods It was a cross-sectional real-world study. AR and NAR were defined based on both subjective symptoms and objective specific serum IgE test. General demographic characteristics as well as clinical information was documented. Patients were further classified according the seasons of initial visiting hospital (during pollen seasons or not). A scoring system presented as nomograms for presence of AR was performed. Results In pollen season group, age distribution, the duration of rhinitis, comorbidity of asthma, food allergies and score of coughing were found significantly associated with AR. Besides, in non pollen season group, we found that ethnicity, age distributions, duration of rhinitis, comorbidity of asthma, food allergies, family history of allergy, together with scores of gritty eyes were associated factors of AR. Based on multivariate logistic model, we built two nomograms which included previously identified significant risk factors that could be easily acquired during clinical practice with predictive variables to assess their roles in predicting the risk of AR among outpatients with rhinitis. Conclusions The characteristics of patients with different phenotypes of chronic rhinitis are distinctive in different seasons and the developed monogram in this study might be beneficial for clinical practice.