Table 1.

Demographic characteristics of patients with unilateral maxillary sinusitis.

Unadjusted data
	UBS (n = 45)	MFB (n = 56)	P value
Age, years	47.2 ± 15.1	63.1 ± 11.2	< 0.001
Age group, n (%)			0.001
< 65 years	38 (84.4)	29 (51.8)
≥ 65 years	7 (15.6)	27 (48.2)
Sex, n (%)			0.309
Male	20 (44.4)	19 (33.9)
Female	25 (55.6)	37 (66.1)

Age-adjusted data
	UBS (n = 30)	MFB (n = 30)	P value
Age, years	56.4 ± 10.6	57.5 ± 11.2	0.682
Age group, n (%)
< 65 years	22 (73.3)	22 (73.3)
≥ 65 years	8 (26.7)	8 (26.7)
Sex, n (%)
Male	12 (40.0)	11 (36.7)
Female	18 (60.0)	19 (63.3)

UBS unilateral bacterial sinusitis, MFB maxillary sinus fungus ball.