Table 5.

Longitudinal trends in mean SNOT-22 sub-domain scores following endoscopic sinus surgery (n=110)

SNOT-22 Sub-domains:	Baseline Mean [SD]	6 Month Follow-up Mean [SD]	12 Month Follow-up Mean [SD]	18 Month Follow-up Mean [SD]	F-test statistic	df	p-value
Rhinologic symptoms	16.4 [6.4]	7.4 [6.0]	7.8 [6.3]	8.5 [6.1]	94.66	2.33	<0.001
Extra-Nasal Rhinologic Symptoms	9.0 [3.3]	4.1 [3.5]	4.3 [3.5]	4.6 [3.6]	101.99	2.54	<0.001
Ear/Facial Symptoms	9.3 [5.1]	4.1 [3.9]	4.6 [4.6]	5.0 [4.5]	60.11	2.60	<0.001
Psychological Dysfunction	15.3 [8.7]	7.0 [7.0]	7.6 [7.9]	8.1 [7.8]	55.84	2.29	<0.001
Sleep Dysfunction	13.3 [7.3]	6.8 [6.0]	7.4 [6.9]	7.9 [6.4]	48.74	2.41	<0.001

SD, standard deviation; df, degrees of freedom; SNOT-22, 22-item Sinonasal Outcome Test