Results:
A total of 86 patients were eligible and completed the study (Figure 1). There were 56 females (65.1%) and 30 males (34.9%). The mean age was 42 ± 12 years. The majority of patients were Caucasian. Reflux, asthma and allergic rhinitis were the most common comorbidities (Table 1). Non-smokers accounted for 90% of the cohort.