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Table 3 Predictors of being prescribed O2 a

From: Tracking dyspnea up to supplemental oxygen prescription among patients with pulmonary fibrosis

  Hazard Ratio (95% confidence limits) p
Female 0.53 (0.28, 1.00) 0.05
Age, yrs 1.00 (0.97, 1.03) 0.99
Ever-smoker 1.62 (0.87, 3.04) 0.13
Reside in Colorado 0.24 (0.10, 0.61) 0.003
IPF 3.57 (1.93, 6.61) < 0.0001
FVC%b 0.95 (0.93, 0.98) 0.0003
DLCO%b 0.96 (0.93, 0.99) 0.003
UCSD at enrollment 1.03 (1.01, 1.04) < 0.0001
  1. aFor all 43 subjects prescribed O2, regardless of whether they completed UCSD prior to O2 prescription
  2. bwithin 4 months of enrollment; IPF = idiopathic pulmonary fibrosis; FVC% = percent predicted forced vital capacity; UCSD = University of California San Diego Shortness of Breath Questionnaire