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Table 1 Baseline characteristics

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

 

Prescribed O2

N = 28

Not Prescribed O2

N = 166

P value

Female

10 (36)

83 (50)

0.15

Age, yrs

67.5 ± 7.9

67.9 ± 9.6

0.99

Smoking

 Current

1 (4)

2 (1)

 

 Former

15 (54)

86 (52)

 

 Never

12 (43)

78 (47)

0.61

State of residence

 Colorado

4 (14)

67 (41)

 

 New Mexico

1 (4)

12 (7)

 

 Texas

3 (11)

12 (7)

 

 Other

20 (71)

75 (45)

0.03

Pulmonary fibrosis

 IPF

20 (71)

41 (25)

 

 CTD

4 (14)

62 (37)

 

 cHP

2 (7)

14 (8)

 

 FPF

1 (4)

11 (7)

 

 Other

1 (11)

38 (23)

< 0.0001

Surgical biopsy

11 (39)

59 (36)

0.61

FVC%

67.3 ± 17.5

77.81 ± 30.3a

0.008

DLCO%

52.5 ± 12.9

64.3 ± 15.4b

0.0016

Enrollment UCSD score

38.4 ± 19.6

22.6 ± 18.7

< 0.0001

Duration of follow-up, days

270.1 ± 201.5

473.6 ± 191.5

< 0.0001

  1. a N = 156 with FVC within 4 months of enrollment
  2. b N = 142 with DLCO within 4 months of enrollment
  3. IPF idiopathic pulmonary fibrosis, CTD connective tissue disease-related pulmonary fibrosis, cHP chronic hypersensitivity pneumonitis, FPF familial pulmonary fibrosis; “Other” includes drug-induced, asbestosis, unclassifiable