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Table 4 Potential predictors of starting long term oxygen therapy

From: Antifibrotic treatment response and prognostic predictors in patients with idiopathic pulmonary fibrosis and exposed to occupational dust

Variables

Oxygen therapy HR (95% CI)

p

Exposed vs not exposeda

0.63 (0.28–1.40)

0.3

Mean pack/year, 10-unit increase

1.17 (0.98–1.39)

0.09

FEV1, L 1-unit increase

0.38 (0.17–0.85)

0.020

GAP score, 1-level increase

1.89 (1.30–2.76)

0.001

CPI score, 1-level increase

1.07 (1.02–1.12)

0.008

  1. HR Hazard Ratio, CI Confidence Interval 95%, FEV1 Forced Expiratory Volume at 1st second, GAP Gender, Age and Physiology, CPI Composite Physiologic Index. P-values < 0.05 are reported in bold.
  2. aExposed = occupational exposure to dust ≥10 years, not exposed = occupational exposure to dust < 10 years