Research Article

Exhaled Nitric Oxide in Systemic Sclerosis Lung Disease

Table 7

Correlation between exhaled NO and age.

GroupAlveolar NO () (95% CI)Conducting airway NO () (95% CI)

All subjects0.16 (−0.10, 0.39)0.29 (−0.08, 0.59)
SSc0.25 (−0.24, 0.64)0.12 (−0.36, 0.56)
SSc-PAH−0.58 (−0.93, 0.30)0.48 (−0.43, 0.91)
SSc-ILD0.78 (−0.72, 1.00)−0.92 (−1.0, 0.33)
SLE-PAH−0.56 (−0.94, 0.46)−0.21 (−0.87, 0.73)
IPAH−0.60 (−0.90, 0.11)0.13 (−0.58, 0.73)
Healthy controls−0.07 (−0.67, 0.59)0.41 (−0.29, 0.83)