Clinical characteristics in both groups
There is a significant (p-value < 0.001) difference in the reasons for referral for clinic in both groups. The most frequent reason for referral to clinic in the hot Khat group is difficulty in nasal breathing, oral & nasal breathing followed by phonoasthenic symptoms; mentioned by 36.4%, 31.8% and 22.7%, respectively. While, in the cold Khat group it is phonoasthenic symptoms, aspiration followed by difficulty in oral and nasal breathing; mentioned by 57.1%, 21.4% and 19.4%, respectively, (Figure 3 & Table 1)
Also, oral sores or sore throat are more frequent in the hot Khat group (90.9%) than in the cold Khat group (13.3%), (p-value < 0.0001).