Introduction
The International Organization for Standardization (ISO)
develops standards in response to an identified need
in the community that will eventually be suitable for
implementation on as broad a basis as possible. ISO
developed the standard for blood glucose monitoring
performance – 15197:2003 – based on a consensus of
professionals around the world.
standard in many countries.
Standard Reference Results
± 15 mg/dL from laboratory
Less than 75 mg/dL
reference result
± 20% from laboratory
Greater than or equal to 75 mg/dL
reference result
Clinical data obtained by healthcare professionals on
the TRUE METRIX
PRO Blood Glucose Monitoring
®
System exceeded the minimum accuracy criteria for
ISO 15197:2003.
Accuracy:
TRUE METRIX
PRO accuracy was assessed against the
®
Yellow Springs Instrument. Studies were conducted at 3
clinical sites by healthcare professionals;
100% of healthcare professionals (HCP) TRUE METRIX
PRO fingertip values fell within 15 mg/dL of the YSI
results at glucose level <75 mg/dL and within 20% at
glucose levels ≥ 75 mg/dL.
Fingertip Capillary Blood < 75 mg/dL (HCP finger vs. YSI)
±5 mg/dL
26/34 = 76.5%
±10 mg/dL
32/34 = 94.1%
±15 mg/dL
34/34 = 100%
TRUE METRIX
PRO System Comprehensive Resource Guide (GDH-FAD Enzyme)
®
Performance Characteristics
for Healthcare Professionals
It is recognized as the
3
ISO Bias Limit
Criteria for Accuracy
95% of all results
Fingertip Capillary Blood ≥ 75 mg/dL (HCP finger vs. YSI)
±5%
122 / 266 = 45.9%
±10%
220 / 266 = 82.7%
±15%
260 / 266 = 97.7%
±20%
266 / 266 = 100%
100% of TRUE METRIX
15 mg/dL of the YSI results at glucose levels <75 mg/dL
and within 20% at glucose levels ≥ 75 mg/dL
Forearm Capillary Blood < 75 mg/dL
(HCP forearm vs. HCP finger)
±5 mg/dL
±10 mg/dL
±15 mg/dL
Forearm Capillary Blood ≥ 75 mg/dL
(HCP forearm vs. HCP finger)
±5%
24/96 = 25%
±10%
58/96 = 60.4%
±15%
88/96 = 91.7%
®
±20%
96/96 = 100%
PRO forearm values fell within
®
2/4 = 50%
3/4 = 75%
4/4 = 100%
Performance Characteristics 12
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