Table 1.

Number of diploid and aneuploid cells by DNA ploidy analysis based on pathological diagnoses n (%)

DNA ploidy	Pathological diagnoses
	Normal	mD	MD	SD	ESCC
Diploid	244 (72.6)	45 (62.5)	4 (13.8)	0 (0)	0 (0)
Aneuploid	92 (27.4)	27 (37.5)	25 (86.2)	10 (100)	5 (100)
No. of aneuploid cells ≤ 5	90 (26.8)	25 (34.7)	7 (24.1)	1 (10)	0 (0)
No. of aneuploid cells ≤ 10	2 (0.6)	2 (2.8)	2 (6.9)	2 (20)	0 (0)
No. of aneuploid cells ≤ 20	0 (0)	0 (0)	8 (27.6)	5 (50)	2 (40)
No. of aneuploid cells > 20	0 (0)	0 (0)	8 (27.6)	2 (20)	3 (60)
Total	336	72	29	10	5

mD: Mild dysplasia; MD: Moderate dysplasia; SD: Severe dysplasia; ESCC: Esophageal squamous cell carcinoma.