TABLE 1.

G_D2 concentrations in control samples and samples from children with neuroblastic tumors

		C18 Lipoform of GD2 [nM]
Group	N	Median	Range	Interquartile Range*
Controls	40	5.6	<LLQ – 15.5	<LLQ – 9.0
Ganglioneuroma	10	4.1	<LLQ – 9.4	<LLQ – 5.2
Ganglioneuroblastoma – Intermixed	12	6.4	<LLQ – 15.3	4.1 – 9.0
Ganglioneuroblastoma – nodular	16	39.1	<LLQ – 258	8.4 – 136
GNB–n, stage 1–3	5	6.0	<LLQ – 167
GNB–n, stage 4	11	51.4	8.6 – 258	22.7 – 175
GNB–n, high risk	13	47.7	4.5 – 258	13.0 – 140
Neuroblastoma (NBL)	90	147	7.8 – 1060	45.4 – 300
NBL by stage
Stage 1–2	14	21.3	7.8 – 880	15.4 – 51.1
Stage 3	5	35.5	16.8 – 330
Stage 4	69	188	16.1 – 1060	82.0 – 333
Stage 4S	2		51.5 – 262
NBL by risk group (excluding 4S)
Low risk	6	21.3	7.8 – 880
Intermediate risk	9	20.6	7.9 – 68.3	15.4 – 51.1
High risk	73	167	16.1 – 1060	79.8 – 330
Relapsed neuroblastoma	56	28.2	3.0 – 389	16.3 – 47.4
NBL post-consolidation	11	8.2	3.0 – 21.1	5.8 – 11.2

^*Interquartile range derived for datasets with at least 7 samples