. Author manuscript; available in PMC: 2010 Jul 15.

Published in final edited form as: Clin Cancer Res. 2009 Jul 7;15(14):4700–4705. doi: 10.1158/1078-0432.CCR-08-1644

Table 4.

Combining visual score and derived R/G ratio

	Visual score and derived R/G ratio^*		κ(P)
	≥0.54 (Positive)	<0.54 (Negative)
Pathology
Positive (HGD and moderate dysplasia)	24	6 (moderate dysplasia)	0.68 (P < 0.0001)^†
Negative (LGD)	5 (1 inflammation, 2 squamous metaplasia, and 2 mild dysplasia)	35

Biopsy sites graded as visual score 1 (class 3/suspicious) and had R/G ratios ≥0.54 were grouped as positive, whereas those graded as visual score 2 (class 1/normal and 2/abnormal) and had R/G ratios <0.54 were grouped as negative.

^†

P < 0.05.