Comparisons of mean absolute neutrophil, monocyte and CD34⁺ cell counts and various lymphocyte subpopulations for normal controls and patients after plerixafor. Comparisons shown are mean (± SEM) absolute counts for normal control subjects (n = 5) and patients (n = 6) at baseline and 6 hours after 0.8 mg/kg of plerixafor. Differences from baseline to 6 hours for the patients were compared using Student t test: * indicates P < .05; **P < .01; ***P < .001. The patients and controls were compared using the log ratio t test: *P < .05; **P < .01; ***P < .001.