Table 1 Precision study of HbA1c by both techniques
Method | Mean | Lower limit and upper limit | SD | CV% | |
|---|---|---|---|---|---|
Normal control HbA1c | HPLC | 5.4% | 4.6–5.8% | 0.21 | 3.8% |
PEIT | 5.5% | 4.1–6.0% | 0.11 | 2.0% | |
High control HbA1c | HPLC | 9.6% | 8.8–10.0% | 0.38 | 3.9% |
PEIT | 9.7% | 9.76–13.6% | 0.23 | 2.3% |