Percentage comparisons of tetramer-bound CD14⁺ monocytes in blood samples from the PTB inpatient group and 3 control donors groups by eu- and hu-tetramer staining and flow cytometric analysis.

N, sample size; P25, P50, and P75 indicate the lower, median, and upper quartiles of the percentage of tetramer-bound CD14+ monocytes, respectively. The Mann-Whitney U test shows that there were significant differences in the median percentages of tetramer-bound CD14+ monocytes, as determined using either of the tetramer tests, between the PTB patient group and each of the control groups, respectively (p<0.01).