Variables | Healthy controls (n = 30) | FILD cases (n = 30) | p |
---|---|---|---|
 | Diaphragmatic mobility | ||
Quiet breathing - (cm) | 1.54 (1.16–1.82) | 1.41 (1.15–2.16) | 0.95 |
Deep breathing - (cm) | 7.02 (5.76–7.73) | 3.99 (3.23–5.68) | < 0.01 |
 | Diaphragmatic thickness and thickening fraction | ||
At FRC (rest, QB) (cm) | 0.17 (0.15–0.20) | 0.20 (0.17–0.23) | 0.01 |
At TLC (DB) (cm) | 0.54 (0.42–0.60) | 0.34 (0.26–0.45) | < 0.01 |
Thickening fraction (%) | 188 (148–239) | 70 (49–108) | < 0.01 |