Table 1.

Characteristics of patients according to the presence of polyps.

Characteristic		Type of chronic rhinosinusitis						Test	p-Value
		CRSwNP		CRSnNP		Total
		n = 205		n = 52		n = 257
Age (years)	M/SD	55.2	13.4	56.9	12.4	55.5	13.2	T	0.38
Female gender	n (%)	101	49.3	36	69.2	137	53.3	Chi	0.01a
Main symptom
Nasal obstruction	n (%)	78	38.1	19	36.5	97	37.7	Chi	1
Anterior rhinorrhea	n (%)	29	14.2	16	30.1	45	17.5	Chi	0.005a
Posterior rhinorrhea	n (%)	14	6.8	2	3.9	16	6.2	Chi	0.54
Hyposmia	n (%)	69	33.7	4	7.7	73	28.4	Chi	0.0002a
Facialgia	n (%)	11	5.4	11	21.2	22	8.6	Fisher	0.001a
Irritation symptoms	n (%)	4	2.0	0	0.0	2	0.8	Fisher	0.59
Comorbidities
Asthma	n (%)	87	42.4	5	9.6	92	35.8	Chi	0.0001a
ASA intolerance	n (%)	30	14.6	1	1.9	31	12.1	Chi	0.01a
NSAID intolerance	n (%)	19	9.3	1	1.9	20	7.8	Fisher	0.09
Dipyrone intolerance	n (%)	28	13.7	1	1.9	29	11.3	Chi	0.02a
NERD	n (%)	28	13.7	1	1.9	29	11.3	Chi	0.02a
AFRS	n (%)	2	1.0	0	0.0	2	0.8	Fisher	1
Active smoker	n (%)	12	5.9	4	7.7	16	6.2	Fisher	0.75
Ex-smoker	n (%)	25	12.2	7	13.5	32	12.5	Chi	0.81
Previous ESS	n (%)	131	63.9	31	59.6	162	63.0	Chi	0.57
CSNI	n (%)	87	42.4	21	40.4	108	42.0	Chi	0.79
CSNS	n (%)	118	57.6	31	59.6	149	58.0	Chi	0.79

CRSwNP, chronic rhinosinusitis with nasal polyps; CRSnNP, chronic rhinosinusitis without nasal polyps; M, mean; SD, standard deviation; n, number; %, percentage; ASA, acetylsalicylic acid; NSAIDs, non-steroidal anti-inflammatory drugs; NERD, NSAID-exacerbated respiratory disease; AFRS, allergic fungal rhinosinusitis; ESS, endoscopic sinus surgery; CSNI, corticosteroid nasal irrigation; CS, corticosteroid.

^ap < 0.05.