Table 4.

Precision Evaluation of the BD FACSVia System

Donor type	Source of variation	Total LMF mean	SD with upper 95% CL
HLA‐B27 negative	Within‐run repeatability	135.9	0.9 (1.0)
	Total interlaboratory reproducibility	135.9	2.1 (2.4)
HLA‐B27 positive	Within‐run repeatability	173.0	0.9 (1.0)
	Total interlaboratory reproducibility	173.0	2.0 (2.3)

Note: (a) Combined data from three sites were used in the calculation of total LMF mean with SD (95% CL). (b) Total interlaboratory reproducibility included variables of within‐run, day and site/operator/instrument.