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Table 2 Pulmonary function test and echocardiography within a 3-month period of nailfold videocapillaroscopy

From: Quantitative videocapillaroscopy correlates with functional respiratory parameters: a clue for vasculopathy as a pathogenic mechanism for lung injury in systemic sclerosis

Variable N Result
Pulmonary function test
 FVC, % predicted 134 80.8 (± 20.1)
 DLCO, % predicted 134 66.2 (± 23.7)
 FVC%/DLCO% 134 1.5 (± 0.4)
Echocardiography
 RVSP (mmHg) 96 30.7 (± 12.0)
 TRV (m/s) 96 2.8 (± 0.3)
 TRV ≥ 2.9 m/s or other echo PH signs 134 14 (10.4)
  1. Data presented as mean (± standard deviation) for continuous variables and as number (%) for categorical variables
  2. FVC forced vital capacity, DLCO diffusion capacity of the lung for carbon monoxide, RVSP right ventricular systolic pressure, TRV tricuspid regurgitation velocity, PH pulmonary hypertension