Frequency of symptoms in viral/postviral acute rhinosinusitis (ARS)
| Viral ARS (n=494) | Postviral ARS (n=857) | P value | |
| Total, N (%) | 494 (100) | 857 (100) | |
| Nasal obstruction* | 481/493 (98) | 829/857 (97) | 0.3847† |
| Rhinorrhoea* | 464/490 (95) | 800/854 (94) | 0.4482† |
| Facial pressure/pain* | 370/485 (76) | 653/848 (77) | 0.7659† |
| Loss of smell* | 275/470 (59) | 533/847 (63) | 0.1148† |
*Number of cases and proportion within group (%).
†χ2 test.