| Odds ratio | 95% CI | P |
---|---|---|---|
Variable | Â | Â | Â |
Age (≤ 70 vs ≥ 71) | 2.39 | 0.35–16.31 | 0.375 |
Smoking history (no vs yes) | 7.69 | 0.38–20.41 | 0.174 |
Performance status (0–1 vs 2–4) | 1.06 | 0.12–7.35 | 0.957 |
With emphysema (no vs yes) | 1.66 | 0.18–15.15 | 0.653 |
With pre-existing interstitial shadow (no vs yes) | 1.19 | 0.15–9.26 | 0.639 |
ΔSP-D (< 398 vs ≥ 398) | 25.56 | 2.29–285.46 | 0.008 |