pISSN 2234-3806eISSN 2234-3814
Table. 2.
Mean results for five pooled serum samples analyzed using different measurement systems, and the intra- and inter-MS %CVs of insulin and C-peptide measurements
| Sample | Representative values before recalibration (nmol/L) | Intra-MS %CV | Inter-MS %CV | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Roche | Abbott | Siemens | Beckman | Snibe | Mindray | Roche | Abbott | Siemens | Beckman | Snibe | Mindray | ||
| Insulin | |||||||||||||
| 202111 | 0.043 | 0.170 | 0.127 | 0.091 | 0.064 | 0.038 | 5.6 | 2.8 | 4.9 | 6.2 | 7.5 | 8.8 | 58.3 |
| 202112 | 0.126 | 0.137 | 0.124 | 0.102 | 0.113 | 0.109 | 4.8 | 2.9 | 4.3 | 5.1 | 2.4 | 5.2 | 10.7 |
| 202113 | 0.391 | 0.295 | 0.302 | 0.265 | 0.346 | 0.365 | 4.6 | 2.2 | 6.3 | 5.0 | 3.8 | 6.7 | 14.5 |
| 202114 | 0.414 | 0.345 | 0.346 | 0.302 | 0.369 | 0.395 | 4.7 | 2.9 | 6.6 | 5.2 | 2.8 | 5.7 | 11.0 |
| 202115 | 1.006 | 0.749 | 0.802 | 0.699 | 0.924 | 1.081 | 4.4 | 2.9 | 6.4 | 4.0 | 1.4 | 9.0 | 17.3 |
| C-peptide | |||||||||||||
| 202111 | 0.363 | 0.265 | 0.195 | 0.173 | 0.385 | 0.256 | 4.5 | 3.7 | 6.9 | 9.6 | 6.7 | 4.7 | 31.6 |
| 202112 | 1.031 | 0.847 | 0.634 | 0.555 | 1.034 | 0.915 | 4.8 | 3.9 | 6.5 | 9.6 | 7.6 | 5.9 | 24.1 |
| 202113 | 2.529 | 2.227 | 1.723 | 1.511 | 2.696 | 2.562 | 4.7 | 4.0 | 8.2 | 11.7 | 10.4 | 4.2 | 22.1 |
| 202114 | 3.270 | 2.813 | 2.255 | 2.161 | 3.530 | 3.359 | 4.7 | 6.5 | 7.5 | 10.5 | 9.3 | 4.3 | 20.2 |
| 202115 | 4.546 | 4.066 | 3.293 | 2.804 | 4.688 | 4.755 | 4.8 | 4.6 | 6.5 | 9.5 | 8.7 | 4.0 | 20.1 |
Abbreviation: MS, measurement systems.
Ann Lab Med 2022;42:428~437 https://doi.org/10.3343/alm.2022.42.4.428
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