Table 2.
Grading of quality in terms of repeatability; LG1 (Jaeger) vs. LG2 (MIR)
| Software grading by Jaeger used in LG1 | Software grading by MIR used in LG2 | ||
|---|---|---|---|
| Grade | Definition | Grade | Definition |
| 1 | At least two approved tests. Difference in both FEV1 and FVC of <100 mL | A | At least two acceptable manoeuvres, with the highest two FEV1 values matching to within 100 mL and the largest two FEV6 values within 100 mL |
| 2 | At least two approved tests. Difference in both FEV1 and FVC of 101–150 mL | B | At least two acceptable manoeuvres, with the FEV1 values matching to within 101 to 150 mL |
| 3 | At least two approved tests. Difference in both FEV1 and FVC of 151–200 mL | C | At least two acceptable manoeuvres, with FEV1 values matching to within 151 to 200 mL |
| 4 | At least two approved tests. Difference in both FEV1 and FVC of>201 mL | D | Only one acceptable manoeuvre, or more than one, but the FEV1 values not matching to within 200 mL (with no interpretation). |
| 5 | No approved tests | F | No acceptable manoeuvres (with no interpretation) |