Figure 2
The effect of plasma cell percentage on FISH positivity. Logistic regression was performed to examine the effect of plasma cell percentage on FISH positivity according to the enrichment method. In direct-FISH, plasma cell percentage significantly influences the positivity of FISH with an OR of 1.04 for each 1% increase in plasma cell percentage (95% CI 1.01–1.08, P value = 0.006). In FICTION, plasma cell percentage significantly influences the positivity of FISH with an OR of 1.02 for each 1% increase in plasma cell percentage (95% CI 1.01–1.03, P value = 0.003). In FACS-FISH, the influence of plasma cell percentage on the positivity of FISH was not significant with an OR of 1.09 for each 1% increase in plasma cell percentage (95% CI 1.00–1.32, P value = 0.186).
