Table 2. Mean measurements, standard deviation and coefficient of variation of 11 daily testing of quality control reagent per reagent and per Nova StatSensor Xpress Creatinine analyzer.

	StatSensor 1			StatSensor 2			StatSensor 3
	mean	SD	CV %	mean	SD	CV %	mean	SD	CV %
Level 1	97.4	5.64	5.8	96.7	4.84	5.0	92.2	5.93	6.4
Level 2	210.3	12.9	6.1	211.5	9.89	4.7	200.9	18.1	9.0
Level 3	597.6	26.7	4.5	611.6	25.7	4.2	583.0	37.7	6.5