The details of the patients in the two groups.

Table 1: The details of the patients in the two groups.

	Average age (years)	Sex (cases)			Typing and staging (cases)
		male	female	Ⅰ type	1stage	2stage	3stage
CAFESS group	44.65 ± 11.86	18	22		10	10	0
				Ⅱ type	1stage	2stage	3stage
					14	4	2
		male	female	Ⅰ type	1stage	2stage	3stage
FESS group	42.40 ± 11.52	20	20		10	10	0
				Ⅱ type	1stage	2stage	3stage
					14	4	2