Table 2.
Precision of the TMA and the TMAO concentrations (in µM) measured in 6 urine samples with different levels over a span of more than 10 days.
| Urine | TMA | TMAO | ||||
|---|---|---|---|---|---|---|
| Mean ± SD | Intraday CV% | Interday CV% | Mean ± SD | Intraday CV% | Interday CV% | |
| 1 | 0.99 ± 0.09 | 3.4 | 17.6 | 305.6 ± 22.7 | 5.2 | 12.4 |
| 2 | 2.41 ± 0.10 | 2.2 | 8.6 | 236.8 ± 15.9 | 5.1 | 10.5 |
| 3 | 2.28 ± 0.14 | 2.1 | 12.3 | 303.3 ± 11.8 | 2.9 | 6.1 |
| 4 | 4.60 ± 0.18 | 2.5 | 7.0 | 393.3 ± 30.3 | 8.5 | 2.3 |
| 5 | 19.54 ± 0.65 | 2.1 | 6.2 | 825.2 ± 68.1 | 7.8 | 10.1 |
| 6 | 9.96 ± 0.34 | 2.5 | 5.9 | 1215.2 ± 47.3 | 2.6 | 7.3 |
The calculated mean, SD, intraday CV% and interday CV% are given. For each of the 6 different urine samples, a cluster of 4 determinations is presented as they were run on four separate days. CV, coefficient of variance.