External Quality Assurance (EQA) Program

for

Survey No. : RH2011-01

Sample sent on : 2011/01/17

Reporting deadline : 2011/01/24

Intermediate Measurement Precision of G6PD Quantitative Test

Lab	Survey : RH2011-01 / Sample 2		Period : 2007 ~ 2011⁴
Lab	U/gHb	SDI²	Mean	n	SD	CV
RH01	6.2	1.5	5.5	8	0.46	8.4%
RH02	4.8	-0.8	5.1	8	0.39	7.6%
RH03	5.6	0.8	5.1	8	0.66	12.9%
RH04	5.7	1.1	5.0	8	0.66	13.2%
RH06	5.2	0.3	5.1	8	0.38	7.5%
RH07	5.1	0.5	4.7	8	0.80	17.0%
RH08	5.2	-0.3	5.3	8	0.33	6.2%
RH09	5.3	0.9	4.9	8	0.43	8.8%
RH10	5.4	-0.2	5.5	8	0.48	8.7%
RH12	4.5	-0.8	5.2	7*	0.54	10.4%
RH13	5.2	0.4	5.0	8	0.51	10.2%
RH14	5.4	0.6	5.1	8	0.48	9.4%
RH18	5.2	0.5	4.9	8	0.60	12.2%
RH19	4.8	-1.0	5.1	8	0.29	5.4%
A0189	5.1	0.4	4.8	8	0.83	17.3%
A0203	5.7	1.1	5.1	8	0.53	10.4%
G031	6.4	1.6	5.4	8	0.64	11.9%
G026	4.9	-1.3	5.3	8	0.32	6.0%
CL01	4.7	-0.8	4.9	8	0.26	5.3%
CL02	4.7	-0.2	4.8	8	0.55	11.5%
B001	4.6	-1.1	5.3	8	0.66	12.5%
Total participating laboratories = 21
Median	5.1	0.4	5.1	－	0.77	9.8%
Range	4.5 ~ 6.4	-1.3 ~ 1.6	4.7 ~ 5.8	－	0.26 ~ 0.83	5.3% ~ 17.3%
Ref. Lab³	5.1	0.0	5.1	8	0.25	4.9%

1).		: Outlier (this result has been dropped and was not included in calculation of Mean, SD and CV).
2). Standard Deviation Index (SDI) = (Individual Result - Individual Mean) / Individual SD
3). The reference values were determined by reference method at the QC reference Lab.
4). Survey / Sample No.：RH 2007-03/S2 ; RH 2007-07/S1 ; RH 2007-09/S1 ; RH 2008-03/S2 ; RH 2008-11/S2 ; RH 2009-07/S2 ; RH 2010-03/S2 ; RH 2011-01/S3
* An error result of RH2009-07 was excluded.
**Intermediate Measurement Precision；ISO 3534-2:2006

updated : 30 Jul, 2013