LFT indicator | BMR predictive equation (kcal/m2/h) | ||||
---|---|---|---|---|---|
Harris-Benedict | Mifflin | FAO/WHO/UN | Henry-Rees | ||
FVC (L) | Normal (49) | 37.36 ± 0.85 | 34.45 ± 0.26 | 35.53 ± 1.26 | 33.77 ± 0.86 |
Low (54) | 37.15 ± 0.88 | 34.39 ± 0.30 | 35.20 ± 1.30 | 33.51 ± 0.80 | |
P value | 0.209 | 0.345 | 0.199 | 0.119 | |
FEV1 (L) | Normal (61) | 37.42 ± 0.83 | 34.42 ± 0.25 | 35.38 ± 1.22 | 33.73 ± 0.82 |
Low (42) | 37.00 ± 0.87 | 34.41 ± 0.33 | 35.32 ± 1.39 | 33.49 ± 0.85 | |
P value | 0.013 | 0.878 | 0.828 | 0.161 | |
FEF25 (L/s) | Normal (94) | 37.26 ± 0.86 | 34.41 ± 0.25 | 35.32 ± 1.18 | 33.61 ± 0.79 |
Low (9) | 37.13 ± 0.99 | 34.53 ± 0.48 | 35.77 ± 2.19 | 33.80 1.27 | |
P value | 0.673 | 0.204 | 0.320 | 0.526 | |
FEF50 (L/s) | Normal (101) | 37.25 ± 0.83 | 34.42 ± 0.28 | 35.37 ± 1.29 | 33.64 ± 0.82 |
Low (2) | 37.25 ± 2.62 | 34.20 ± 0.00 | 34.50 ± 0.85 | 33.30 ± 1.84 | |
P value | 0.999 | 0.266 | 0.344 | 0.576 | |
FEF75 (L/s) | Normal (101) | 37.25 ± 0.87 | 34.42 ± 0.28 | 35.35 ± 1.28 | 33.62 ± 0.83 |
Low (2) | 37.45 ± 0.35 | 34.50 ± 0.00 | 35.80 ± 2.26 | 33.95 ± 1.48 | |
P value | 0.744 | 0.684 | 0.625 | 0.588 |