Table 1.

The simple t-test results of maxillary sinus dimensions according to gender in the overall, Yemeni, and Chinese group

Variables	Gender				P value
	Male		Female
	Mean	SD	Mean	SD
Overall
Height	37.5823	5.54856	33.8217	6.05830	0.478
Length	38.3276	4.79078	36.0458	4.89387	0.599
Surface area	1156.0869	236.78255	977.6182	253.40148	0.551
Yemeni
Height	34.0249	4.54864	29.8424	4.98997	0.476
Length	36.2609	4.94877	33.4924	4.64510	0.454
Surface area	1029.6444	214.10170	800.6260	208.87403	0.411
Chinese
Height	41.1398	3.96187	37.8009	4.11730	0.864
Length	40.3942	3.63291	38.5991	3.67857	0.563
Surface area	1282.5293	186.72050	1154.6104	148.92687	0.175

SD Standard deviation