Table 3.

Mean differences in measures of CRS disease severity between patients with and without poor sleep quality

	PSQI “Poor” Sleep Quality (> 5; n=201)		PSQI “Good” Sleep Quality (≤ 5); n=67)
Disease Severity Measures:	Mean(SD)	Range [LL, UL]	Mean(SD)	Range [LL, UL]	t	p-value
Lund-Mackay CT score	12.2 (5.7)	[1, 24]	12.8 (6.5)	[1, 24]	0.671	0.503
Lund-Kennedy Endoscopy score	6.4 (4.1)	[0, 20]	6.7 (3.8)	[0, 14]	0.498	0.619
B-SIT olfactory score	9.2 (3.1)	[1, 12]	8.5 (3.5)	[2, 12]	−1.313	0.190

PSQI, Pittsburgh Sleep Quality Index; SD, standard deviation; LL, lower limit; UL, upper limit; CT, computed tomography; B-SIT, Brief Modified Smell Identification Test