Table 4.

Distribution of mAbs detecting <50% or equal/more than 50% MHC molecules on the tumour tissue

Antibodies detecting MHC molecules on tumour tissue	Cumulative % of positive tumour tissuea	Cohort	WP	BP (HLA-A02*)b	P (χ2)c
	N	162%	47%	115 (45)%
HC-10	<50% (low)	27	48	19 (6.5)	<0.001 (14.6)
	≥50% (high)	73	52	81 (93.5)	<0.001 (18.8)
HCA	<50% (low)	41	53	35.5 (11)	0.04 (4.5)
	≥50% (high)	59	47	64 (8.9)	0.02 (5.1)
L368	<50% (low)	64	81	57.5 (30.4)	0.02 (5.7)
	≥50% (high)	36	19	42.5 (69.6)	<0.001 (11.3)

^a<50% staining scores (low) and >50% staining scores (high)

^bIn paranthesis are presented the fraction of HLA-A02* patients

^cComparison between % of WP and BP for low and high respectively. P values and χ²