Table 2. Proportion of patients reporting any severity of ear symptoms before and after endoscopic sinus surgery for whole cohort and subgroups.

	Whole Cohort (n=395)		CRSwNP (n=149)		CRSsNP (n=246)		Primary Surgery (n=180)		Revision Surgery (n=215)
	Pre-operative	Post-operative	Pre-operative	Pre-operative	Post-operative	Pre-operative	Post-operative	Post-operative	Pre-operative	Post-operative
Ear fullness	82%	54%	82%	82%	50%	81%	82%	49%	82%	59%
Dizziness	58%	33%	54%	54%	29%	60%	64%	30%	53%	35%
Ear pain	57%	33%	54%	54%	32%	59%	57%	27%	57%	39%

All postoperative improvements are significant (p<0.001); CRSwNP, chronic rhinosinusitis with nasal polyps; CRSsNP, chronic rhinosinusitis without nasal polyps