Table 1.

Volunteers/probands’ and patients’ characteristics.

	Control Volunteers (N = 128)		Patients with CRS (N = 246)
Parameter	N	%	N	%	p *
Gender					0.595
Female	52	40.6	93	37.8
Male	76	59.4	153	62.2
Smoking					0.029
Yes	39	30.5	37	15.0
No	89	69.5	209	85.0
Allergy					0.812
Yes	53	41.4	107	43.5
No	75	58.6	139	56.5
N-ERD					0.002
Yes	0	0	18	7.3
No	128	100	228	92.7
Asthma					0.003
Yes	7	5.4	46	18.7
No	121	94.6	200	81.3
Diabetes					0.074
Yes	16	12.5	9	3.7
No	112	87.5	237	96.3
CRS type					NA
CRSsNP	NA	NA	166	67.5
CRSwNP	NA	NA	80	32.5
Pre- or perioperative antibiotic treatment					0.358
Yes	23	18.0	59	24.0
No	105	82.0	187	76.0
	Mean ± SD	Median, Range	Mean ± SD	Median, Range	p **
Age, years	53.1 ± 17.2	55, 18–89	49.7 ± 16.2	50, 18–83	0.108
MALM score	NA	NA	1.4 ± 1.1	2, 0–3	NA

* Pearson’s chi-square test; ** Mann–Whitney U-test; N-ERD = NSAID-exacerbated respiratory disease; NA = not applicable.