A 6-gene signature identifies four molecular subgroups of neuroblastoma

Table 4 Expression subgroups vs. Genomics subgroups

Data sets 1 & 2 (De Preter & McArdle/Wilzén)
	p1	p2	p3	p4
Type 1	10	4	0	1
Type 2A	3	10	1	4
Type 2B	1	0	9	1	In total 47
Other	0	0	1	2
Data set 3 (Wang)
	h1	h2	h3	h4
Type 1	21	4	0	9
Type 2A	15	15	0	7
Type 2B	0	1	18	1	In total 101
Other	2	5	0	3

Contingency table of p-group assignment and genomic subgroup assignment of the two test data sets (De Preter and McArdle/Wilzén). The p-group assignment was based upon the PCA clusters. The genomic subtypes were established based on INSS stage, MNA status, and Del11q status (see text for details). The highest numbers of cases of the p- and h-group assignments falling into a specific genomic subgroup category are shown in bold.

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