Percentage of MO1s in the 233 cases grouped by disease. (A) Flow cytometry results are shown as the percentage of MO1 identified for the 5 groups analyzed (39 OM-CMML, 54 CMML, and 23 MDS that did not meet OM-CMML diagnostic criteria; 15 MPN with ≥1 × 10⁹/L monocytes, and 102 reactive monocytosis). Each dot represents a patient result for the MO1 test, and lines represent the median percentage for each disease group. The dotted line indicates the 94% cutoff of the test. ***P < .001. (B) The distribution of monocyte subsets is shown for 5 examples, each one from a different disease group. The percentage of the 3 monocyte subsets (MO1, MO2, and MO3) out of the total monocytes is displayed for each example. ns, not significant.