Table 2.
Spearman's rank correlation coefficient between urinary N-titin/Cr and baseline characteristics.
| ρ (95%CI) | p-value | |
|---|---|---|
| Age, years | −0.014 (−0.252 to 0.225) | 0.934 |
| BMI, kg/m2 | 0.023 (−0.222 to 0.265) | 0.896 |
| The duration from diagnosis, months | 0.055 (−0.186 to 0.290) | 0.934 |
| ILD-GAP score, point | −0.016 (−0.285 to 0.256) | 0.622 |
| mMRC dyspnea scale, grade | 0.053 (−0.199 to 0.299) | 0.763 |
| PaCO2 at rest, mmHg | −0.160 (−0.419 to 0.124) | 0.359 |
| PaO2 at rest, mmHg | 0.241 (−0.040 to 0.487) | 0.163 |
| FVC, % | −0.086 (−0.346 to 0.186) | 0.624 |
| FEV1, %pred | −0.117 (−0.373 to 0.156) | 0.505 |
| FEV1/FVC, % | 0.022 (−0.248 to 0.288) | 0.902 |
| DLco, % | −0.022 (−0.286 to 0.244) | 0.899 |
| KL-6, U/ml | −0.086 (−0.349 to 0.188) | 0.622 |
| PMCSA, cm2 | 0.042 (−0.199 to 0.278) | 0.735 |
| ESMCSA, cm2 | 0.222 (−0.018 to 0.437) | 0.069 |
BMI body mass index, 95%CI 95% confidence interval, DLco diffusion capacity for carbon monoxide, ESMCSA cross-sectional area of erector spinae muscles, %FEV1 percentage of forced expiratory volume in 1 s, FVC forced vital capacity, IIPs idiopathic interstitial pneumonias, ILD-GAP interstitial lung disease-gender, age, lung physiology score, KL-6 Krebs von den Lungen-6, mMRC modified Medical Research Council, PaCO2 partial pressure of carbon dioxide, PaO2 partial pressure of oxygen, PMCSA cross-sectional area of pectoralis muscles, %pred percent predicted, %VC percentage of volume capacity, urinary N-titin/Cr urinary N-terminal titin fragment/creatinine.