Fig. 1

Classification of the abn(7) cohort according to cytogenetic characteristics. Depiction of the classification of abn(7) patients into different groups according to the karyotype information available (n = 519). The first level separates a group of abn(7) samples with complex karyotype (CK) from the non-CK cases. A second division separates non-CK cases and CK cases according to the presence of monosomy 7 (−7/non-CK or −7/CK) or the presence of a del(7q) [del(7q)/non-CK or del(7q)/CK]. A group of samples not fitting these definitions was not included (other/non-CK, n = 10 or other/CK, n = 19). A third division separates samples by the presence or absence of another cytogenetic alteration in addition to the abnormality detected in abn(7)/non-CK. Samples with an accompanying alteration (non-complex karyotype non-sole, non-CKns) and samples with only a chr7 aberration (sole)