Table 6: COX regression multivariate analysis.
| p | Exp(B) | 95% CI Exp(B) | ||
| DLCO < 40% | 0.005 | 3.985 | 1.503 | 10.561 |
| Total Score ≥ 20 | 0.03 | 3.352 | 1.128 | 9.963 |
Abbreviations: p: Level of Significance; r: Rank Correlation Coefficient; CI: Confidence Interval; Exp(B): Exponentiation of the B Coefficient.