Table 1.
Table 1. HbA1c Measurements by Different Methods of Testing
| Sample ID randomly assigned | HbA1c (%) by A1cNow Inview | HbA1c (%) by Sparrow laboratory | HbA1c (%) by NGSP laboratory |
|---|---|---|---|
| 1 | 7.7 | 7.0 | 6.8 |
| 2 | 11.0 | 12.1 | 11.5 |
| 3 | 6.5 | 6.5 | 6.4 |
| 4 | 8.2 | 7.8 | 7.5 |
| 5 | 6.2 | 6.0 | 5.9 |
| 6 | 6.5 | 6.7 | 6.5 |
| 7 | 6.0 | 6.1 | 5.8 |
| 8 | 6.5 | 6.9 | 6.8 |
| 9 | 7.8 | 8.8 | 8.4 |
| 10 | 9.4 | 9.2 | 8.8 |
| 11 | 6.7 | 6.8 | 6.6 |
| 12 | 5.4 | 5.5 | 5.3 |
| 13 | 6.2 | 6.3 | 6.1 |
| 14 | 6.9 | 7.6 | 7.2 |
| 15a | 4.8 | 6.7 | 6.4 |
| 16 | 7.6 | 8.6 | 8.1 |
| 17 | 7.2 | 7.4 | 7.1 |
| 18 | 8.1 | 8.7 | 8.3 |
| 19 | 8.3 | 9.1 | 8.6 |
| 20 | 10.3 | 10.2 | 9.6 |
| 21 | 5.6 | 5.6 | 5.4 |
| 22 | 5.9 | 6.3 | 6.1 |
| 23 | 7.4 | 8.1 | 8.1 |
| 24 | 6.3 | 7.0 | 7.1 |
| 25 | 9.7 | 9.7 | 9.6 |
| 26 | 4.2 | 4.1 | 4.3 |
| 27 | 5.1 | 5.2 | 5.0 |
| 28 | 6.1 | 6.1 | 5.9 |
| 29 | 6.9 | 7.0 | 7.1 |
| 30b | 6.3 | 6.9 | – |
| 31 | 4.9 | 5.2 | 5.2 |
| 32 | 8.5 | 9.5 | 9.0 |
| 33 | 8.2 | 7.9 | 7.9 |
| 34 | 7.4 | 6.9 | 6.9 |
| 35 | 5.6 | 6.1 | 6.1 |
| 36a | 5.5 | 6.7 | 6.3 |
| Mean | 7.03 | 7.30 | 7.10 |
a
Sample 15 was repeated as 36, and 36 was used in analysis instead of 15.
b
Sample 30 was not sent to the NGSP laboratory and was not used in analysis involving NGSP laboratory results.