General and Otolaryngological Outcomes
The prevalence of general symptoms is reported in Table 1. The most prevalent general symptoms were headache, cough and myalgia. The prevalence and severity of otolaryngological symptoms are reported in Table 2. Nasal obstruction, rhinorrhea and sore throat were the most prevalent symptoms associated with COVID-19. According to the NHNES questions, 1,901 (73.7%) and 1,205 (46.8%) patients complained from subjective OD and GD. The distribution of the most prevalent general and otolaryngological symptoms according to the severity groups is available in Figure 2. Mild COVID-19 patients had more frequently otolaryngological symptoms compared with moderate and severe-to-critical patients.