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Correlation between exhaled NO and age.
| Group | Alveolar NO (CANO) r (95% CI) | Conducting airway NO (JawNO′) r (95% CI) |
|---|---|---|
| All subjects | 0.16 (−0.10, 0.39) | 0.29 (−0.08, 0.59) |
| SSc | 0.25 (−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-ILD | 0.78 (−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) |
