TABLE 4.

Intralaboratory variation in IC₅₀ for laboratory strain AD169 using the ACTG consensus assay

Laboratory	GCV				PFA
	na	IC50 (μM)	Mean (μM)	CVb	n	IC50 (μM)	Mean (μM)	CV
A	3	4.40	5.76	60.5	3	69.66	83.80	15.5
		3.17				86.55
		9.73				95.19
B	3	1.86	27.9	156.8	3	184.22	338.67	81.7
		78.49				657.39
		3.44				173.86
C	4	3.67	3.85	20.5	2	43.90	57.95	34.3
		4.37				72.00
		2.82
		4.56
F	2	3.18	2.71	24.5	2	70.81	55.15	40.2
		2.24				39.48
I	3	1.40	3.14	48.5	3	76.74	98.42	19.3
		4.24				111.87
		2.68				106.63
K	4	5.63	5.39	28.5	3	71.28	85.87	31.9
		6.07				68.87
		3.18				117.45
		6.69

^aNumber of assays performed in each laboratory. 

^bCV determined as (standard deviation/mean) × 100%.