Table 4.
Comparison of procedures for calculating anion gap (AG) uncertainty.
| Calculation procedure | Measurand value (AG) mmol/L | Standard uncertainty u(AG) | Expanded uncertainty (95.4% coverage) |
|---|---|---|---|
| GUM modelling | 14.5 | 2.267 | 4.53 |
| MCS method* | 14.5 | 2.268 | 4.54 |
*
As each MCS generates a new set of values, slight variations in the least significant decimal places are expected from one simulation to the next. The values for the MCS method shown (mean standard uncertainty of 2.268 with a 95.4% coverage interval (± 2s) of 0.029), were obtained from 40 simulations of 10,000 trials each.