Table 2.

BCP-ALL patient characteristics according to ploidy group

Variable	Diploid n = 217	Low hyperdiploid n = 7	High hyperdiploid n = 38	Near-tetraploid n = 4	p
Age (years)	4.87	3.18	4.26	6.78	ns
WBC (× 109/l)	5.20	3.20	2.70	8.30	0.006
SPF (%)	6.47	16.41	7.39	11.91	ns
Blasts at diagnosis (%)	85.70	79.00	79.00	75.50	0.001
MRD15 (%)	0.55	0.37	0.61	0.42	ns
MRD33 (%)	0.00	0.00	0.00	0.00	ns

Shown as median value.

Bold values indicate statistical significance.