Table 4.
Analysis of prognostic factors by Cox proportional hazards model.
| Hazard ratio | 95% CI | p value | |
|---|---|---|---|
| Cellular fibrosis | 0.83 | 0.57–1.22 | 0.346 |
| Cellular IP/NSIP | 0.84 | 0.48–1.47 | 0.54 |
| Edge | 1.1 | 0.78–1.55 | 0.6 |
| Dense fibrosis | 1.57 | 1.04–2.40 | 0.034 |
| Fibroblastic focus | 1.47 | 1.11–1.96 | 0.008 |
| Elastosis | 1.48 | 1.02–2.15 | 0.04 |
| Fat | 1.15 | 0.85–1.57 | 0.355 |
| Lymphocytic aggregates | 1.35 | 1.03–1.77 | 0.03 |
| Mucin | 1.17 | 0.81–1.69 | 0.397 |
| Bronchiolar epithelium | 0.74 | 0.50–1.10 | 0.137 |
IP interstitial pneumonia, NSIP non-specific interstitial pneumonia.