Table 4. Average slopes of the second half of all uncorrected, Lundin-corrected and Cournand-corrected FRCN2/breath number curves (depicted graphically in Fig 4) for healthy subjects and those with CF.
Average paired difference (uncorrected-corrected) in absolute and relative (percent of uncorrected slope) terms are shown. Data are expressed as mean 95% confidence interval) unless otherwise stated.
| Health | CF | |
|---|---|---|
| Uncorrected slope (mL/min) | 104.2 (97.9, 110.6) | 125.3 (115.4, 135.2) |
| Corrected slope (Lundin) | 77.4 (71.4, 83.5) | 100.4 (90.1, 110.7) |
| Absolute diff (Lundin) | 26.8 (25.2, 28.4) | 24.9 (23.4, 26.4) |
| Relative diff (Lundin) (%) | 27.4 (25.0, 29.9) | 22.5 (19.6, 25.3) |
| Corrected slope (Cournand) | 70.5 (65.0, 76.0) | 94.2 (84.9, 103.5) |
| Absolute diff (Cournand) | 33.7 (32.3, 35.1) | 31.1 (29.6, 32.6) |
| Relative diff (Cournand) (%) | 33.9 (31.9, 35.8) | 26.7 (24.6, 28.8) |