Methods for predicting a disease free time interval (DFI) for a cancer patient under consideration for initial or further chemotherapy treatment are disclosed. The methods include obtaining a biological sample from a patient and detecting a copy number of chromosome region A1 and/or C2. The mean copy number per cell is correlated with a DFI for the subject. The chemotherapy can include doxorubicin and/or L-asparaginase treatment. Also provided are kits for predicting DFI in a subject with cancer and computer readable storage media for performing the presently disclosed methods.
