Table 2.
Precision and bias of VO2 (ml/min), VCO2 (ml/min) and REE (kcal/24 h) between methods
| Comparison | Mean | Bias | Precision (bias ±2 SD) | PE (±2 SD/mean) |
|---|---|---|---|---|
| VO2: E-sCOVX–Deltatrac | 310 | +27 | –44 to +98 | ±23 |
| VO2: Quark RMR–Deltatrac | 301 | +25 | –49 to +98 | ±24 |
| VCO2: E-sCOVX–Deltatrac | 245 | +37 | –8 to +83 | ±19 |
| VCO2: Quark RMR–Deltatrac | 238 | +40 | –11 to +90 | ±21 |
| REE: E-sCOVX–Deltatrac | 2148 | +215 | –246 to +675 | ±21 |
| REE: Quark RMR–Deltatrac | 2088 | +205 | –260 to +670 | ±22 |
| REE: 20 kcal/kg/24 h Deltatrac | 1754 | –559 | –1199 to 81 | ±36 |
| REE: HBE* Deltatrac | 1773 | –371 | –926 to +183 | ±31 |
* Revised Harris-Benedict equation. N = 46
PE percentage error, REE resting energy expenditure, SD standard deviation, VCO 2 carbon dioxide production, VO 2 oxygen consumption