Table 6. Number of samples for which IHC and gene expression yield receptor positive/unknown/negative.

	gene expression
	ER			PGR			HER2
	GE –	GE 0	GE +	GE –	GE 0	GE +	GE –	GE 0	GE +
IHC –	887	100	86	590	357	142	1560	20	7
IHC 0	273	81	257	365	282	473	593	88	74
IHC +	70	157	969	75	143	453	271	119	148
Critical GE		338			782			227
Rate of discordant samples		5%			8%			10%
Rate of conclusive samples		92%			79%			87%

IHC 0: no IHC measurement available.

GE 0: expression value within the critical domain, and no decision can be made. Boundaries of critical domains were computed by the ExMax-method.

Bold print: discordant samples.

Note that results shown in this table are obtained step by step via the methods explained in ‘Material and Methods’.