Table 1.

Clinical features of patients

Age, median years (range)		60 (31-80)
Gender, n (%)	Male	87 (59%)
	Female	60 (41%)
Ethnicity, n (%)	Caucasian	26 (18%)
	Chinese	112 (76%)
	African American	3 (2%)
	Hispanic	6 (4%)
Indication for procedure, n (%)	Screening	42 (29%)
	Surveillance	105 (71%)
Macroscopic appearance, n (%)	Nodularity	11 (7%)
	Ulceration	7 (5%)
	Neither	128 (87%)
	Both	1 (1%)
Final pathologic diagnosis	Neoplasia	37 (25%)
	Benign	110 (75%)
Sites, n (%)	First University	31 (21%)
	Mount Sinai	30 (20%)
	MD Anderson	7 (5%)
	CICAMS	79 (54%)