Relationship between relative miR-155 expression levels in plasma and response to therapy in group C. (A) Relative expression levels of miR-155 in plasma were lower in patients treated with fludarabine, cyclophosphamide, and rituximab who experienced a complete response than in patients who experienced other treatment outcomes. (B) Relative expression levels of miR-155 in plasma according to type of response. Raw data for all plasma samples are shown in supplemental Table 4. CR, complete response; NPR, nodular partial response; NR, no response; PR, partial response. In panel B, the P value was calculated using the Kruskal-Wallis test.