Forest plots. Shown is the relationship between major variables and BCR-ABL1⁺ ALL PCR-determined IKZF1 status (A), BCR-ABL1⁻ ALL PCR-determined IKZF1 status (B), BCR-ABL1⁺ ALL MLPA-determined IKZF1 status (C), and BCR-ABL1⁻ ALL MLPA-determined IKZF1 status (D).