Table 2.

Kita-Kyushu lung cancer antigen-1 staining results in tumor and normal tissues

Cytoplasmic staining	Positive cell rate (%) Median (range)		n (%)
	Tumor tissues	Normal tissues	Tumor tissues	Normal tissues
Negative	–	–	4 (4.3)	8 (9.5)
Positive	100 (40–100)	90 (10–100)	90 (95.7)	76 (90.5)
< 1	90 (80–100)	60 (10–100)	19 (20.2)	36 (42.9)
1+	100 (40–100)	90 (20–100)	57 (60.7)	40 (47.6)
2+	100 (90–100)	–	14 (14.8)	0 (0)

Negative = 0, Positive: 1≦1+ < 2, 2≦2+ < 3.