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Table 2 Diaphragmatic mobility, thickness and thickening fraction in FILD cases and healthy controls

From: Diaphragmatic ultrasound findings correlate with dyspnea, exercise tolerance, health-related quality of life and lung function in patients with fibrotic interstitial lung disease

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

  1. Data expressed as median (25th–75th interquartile range)
  2. FILD fibrotic interstitial lung disease, FRC functional residual capacity, TLC total lung capacity