Table 2.

Clinical characteristics and outcome parameters, with means and standard deviations, for 134 European patients with chronic rhinosinusitis

	CRS (total = 134)	CRSsNP (total = 64)	CRSwNP (total = 70)	χ 2	p value
Sex
Male	80	36	44	0.61	0.44
Female	54	28	26
Duration of CRS symptoms (months)
< 12	27	17	10	13.1	0.01
12–24	25	16	9
24–60	22	12	10
> 60	58	18	40
Comorbidities
Atopies	67	28	39	1.91	0.17
Asthma	41	13	28	6.10	0.01
Aspirin-exacerbated respiratory disease	22	4	18	9.23	0.002
Previous endoscopic sinus surgery	55	22	33	2.25	0.13
	Mean (± SD)	Mean (± SD)	Mean (± SD)	t test	p value
Sino-nasal outcome score-22 total score	38.0 (± 20.9)	39.7 (± 21.1)	36.5 (± 20.8)	0.87	0.39
Lund–Mackay score	9.4 (± 5.8)	7.7 (± 4.1)	11.0 (± 6.7)	3.43	0.001
Lund–Naclerio score	3.1 (± 5.8)	n.a.*	n.a.*	n.a.*	n.a.*
Brief symptom inventory 18 total score	9.1 (± 10.9)	11.2(12.8)	7.3(± 8.7)	1.97	0.051

*Not applicable