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Procedure-related symptoms
| SWG (n = 40) | SPG (n = 40) | P value | |
| During the procedure | |||
| Retching (yes/no) | 13/27 | 31/9 | < 0.01 |
| Cough (yes/no) | 10/30 | 12/28 | 0.62 |
| Abdominal pain (yes/no) | 1/39 | 1/39 | 1 |
| Dyspnea (yes/no) | 0/40 | 4/36 | 0.12 |
| After the procedure | |||
| Sore throat (yes/no) | 5/35 | 8/32 | 0.55 |
| Abdominal pain (yes/no) | 1/39 | 5/35 | 0.2 |
| Nausea/vomiting (yes/no) | 0/40 | 1/39 | 1 |
SWG: Swab group; SPG: Spray group. P value for difference between groups using χ2 or Fisher’s exact tests.
