The mean channel shift was taken as an indication of the amount of HLA antigens on the surface. From 11 different individuals, the average mean channel shifts was 801 for the lymphocytes
(range, 318 to 1202) and 705 for the flow beads (range, 620 to 745) .
The standard deviation was 302 for the lymphocytes and only 52 for the flow beads .
The results indicated that the amount of HLA antigen coated on the beads was similar to the average amount of antigen on the lymphocytes.