Table 2.

Prevalence of right and left maxillary sinus findings in relation to gender and age groups

Maxillary Sinus Findings		Sex			Age Groups
		Male	Female	P value	18–25 years old	26–30 years old	31–40 years old	41–50 years old	51–60 years old	> 60 years old	P value
Right	Sinus Fluid	121 (27.1%)	75 (13.1%)	< 0.001+	28 (10.7%)	17 (16.3%)	55 (19.6%)	59 (25.9%)	27 (26.0%)	10 (24.4%)	< 0.001#
	Sinus Septa	21 (4.7%)	44 (7.7%)	< 0.001+	27 (10.3%)	6 (5.8%)	11 (3.9%)	13 (5.7%)	7 (6.7%)	1 (2.4%)	< 0.001#
	Thick Sinus Membrane	20 (4.5%)	22 (3.8%)	0.966	10 (3.8%)	1 (1.0%)	14 (5.0%)	10 (4.4%)	4 (3.8%)	3 (7.3%	< 0.001#
	Septa and Thick Sinus Membrane	7 (1.6%)	9 (1.6%)	0.992	5 (1.9%)	2 (1.9%)	3 (1.1%)	2 (0.9%)	4 (3.8%)	0 (0.0%)	0.252
	No Abnormality Detected	277 (62.1%)	422 (73.7%)	< 0.001+	192 (73.6%)	78 (75%)	196 (70%)	144 (63.2%)	62 (59.6%)	27 (65.9%)	< 0.001#
P value	< 0.001*				0.009*
Left	Sinus Fluid	99 (22.2%)	87 (15.2%)	< 0.001+	23 (8.8%)	10 (9.6%)	65 (23.2%)	51 (22.4%)	27 (26.0%)	10 (24.4%)	< 0.001#
	Sinus Septa	29 (6.5%)	47 (8.2%)	0.001+	26 (10.0%)	4 (3.8%)	18 (6.4%)	13 (5.7%)	11 (10.6%)	4 (9.8%)	< 0.001#
	Thick Sinus Membrane	24 (5.4%)	17 (3%)	0.263	6 (2.3%)	3 (2.9%)	16 (5.7%)	8 (3.5%)	4 (3.8%)	4 (9.8%)	< 0.001#
	Septa and Thick Sinus Membrane	4 (0.9%)	7 (1.2%)	0.702	4 (1.5%)	1 (1.0%)	2 (0.7%)	3 (1.3%)	1 (1.0%)	0 (0.0%)	0.406
	No Abnormality Detected	290 (65%)	414 (72.4%)	< 0.001+	202 (77.4%)	86 (82.7%)	179 (63.9%)	153 (67.1%)	61 (58.7%)	23 (56.1%)	< 0.001#
P value	0.009*				0.001*

P-value calculated using Chi-square test. (*) means statistically significance (P-value < 0.05)

 P-value calculated using Mann–Whitney test. (⁺) means statistically significance (P-value < 0.05)

 P-value calculated using Kruskal–Wallis test. (^#) means statistically significance (P-value < 0.05)