 The study found that 46% of patients with a phenotype and 51% without had no improvement in their quality of life or still had significant cough after six months. Additionally, 37.5% of patients with a phenotype were categorized as having refractory chronic cough, and 9.5% were categorized as unexplained chronic cough. The study concluded that there is a need to manage chronic cough regardless of phenotype. This article was authored by Jan Willem K. Vandenberg, Karl A. Baxter, Mireia Edens, and others.