Intrasession variability characteristics for MasterScreen and HypAir
| Variables | MasterScreen | HypAir | ||||||
| Measurement error# | Repeatability¶ | CV % | ICC | Measurement error# | Repeatability¶ | CV % | ICC | |
| DLNO mL·min−1·mmHg−1 | 6.76 | 18.73 | 4.89 | 0.972 (0.952–0.985) | 5.97 | 16.52 | 4.05 | 0.962 (0.934–0.979) |
| DLCO mL·min−1·mmHg−1 | 1.16 | 3.22 | 3.80 | 0.986 (0.975–0.992) | 0.97 | 2.70 | 3.38 | 0.981 (0.968–0.990) |
| VA L | 0.11 | 0.30 | 1.77 | 0.995 (0.992–0.997) | 0.11 | 0.31 | 1.79 | 0.993 (0.987–0.996) |
Data were measured at a target breath-hold time of 5 s. CV: coefficient of variation; ICC: intraclass correlation coefficient; DLNO: diffusing capacity of the lung for NO; DLCO: diffusing capacity of the lung for CO; VA: alveolar volume. #: the measurement error (or within-subject standard deviation, SDws) was calculated by the root mean square method; ¶: repeatability of gas diffusing measurements was calculated as the SDws from all three single-breath tests separately and multiplied by 2.77 (95% level of confidence).