Association between nasal patency and orofacial myofunctional changes in patients with asthma and rhinitis

Purpose To verify the association between orofacial myofunctional changes and nasal patency. Method Observational study of 43 children and adolescents with asthma and/or rhinitis, aged between 5 and 14 years, from May 2017 to September 2019. Patients underwent peak nasal inspiratory flow (PNIF) for nasal patency assessment and orofacial myofunctional assessment. Clinical data were obtained from an interview on the day of the patients’ medical evaluation. The relationship between orofacial myofunctional changes and PNIF was analyzed using a logistic regression model. Estimates were reported as odds ratio (OR) and 95% confidence interval (95%CI). We evaluated multicollinearity using the variance inflation factor and analyzed the adjusted fit with the Akaike information criterion and McFadden’s R 2 metric; p value