Table 1 Bias, 2SD and PE for all data pairs and for CO higher and lower than 8 l/minute
| Â | Bias | 2SD | PE (%) |
|---|---|---|---|
ICO | Â | Â | Â |
   Total | -0.89 | 3.6 | 49 |
   <8 | -1.37 | 2.4 | 40 |
   >8 | -0.05 | 4.8 | 52 |
CCO | Â | Â | Â |
   Total | -0.83 | 4.88 | 63 |
   <8 | -1.8 | 2.4 | 37 |
   >8 | 2.07 | 5.64 | 47 |