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Table 1 Demographic and clinical characteristics at enrollment of patients who were and were not hospitalized during follow-up in the IPF-PRO Registry

From: Hospitalizations in patients with idiopathic pulmonary fibrosis

 

Hospitalized during follow-up (n = 568)

Not hospitalized during follow-up (n = 433)

Measure

Missing data

Measure

Missing data

Male

419 (73.8)

0

328 (75.8)

0

Age, years

71 (66, 75)

0

70 (66, 76)

0

White

528 (93.0)

13 (2.3)

400 (92.4)

10 (2.3)

Body mass index, kg/m2

29.0 (25.9, 32.6)

21 (3.7)

28.8 (26.0, 31.8)

20 (4.6)

Smoking status

 

1 (0.2)

 

0

 Current

10 (1.8)

 

8 (1.8)

 

 Former

391 (68.8)

 

260 (60.0)

 

 Never

166 (29.2)

 

165 (38.1)

 

Private insurance

336 (59.2)

25 (4.4)

268 (61.9)

9 (2.1)

Diagnostic criteria for IPFa

 

2 (0.4)

 

2 (0.5)

 Definite

376 (66.2)

 

278 (64.2)

 

 Possible/probable

190 (33.5)

 

153 (35.3)

 

FVC % predicted

69.2 (58.5, 79.3)

35 (6.2)

71.4 (60.8, 84.7)

33 (7.6)

DLco % predicted

40.8 (30.9, 49.8)

58 (10.2)

44.5 (35.5, 54.3)

58 (13.4)

Oxygen use at rest

130 (22.9)

1 (0.2)

69 (15.9)

4 (0.9)

Oxygen use with activity

221 (38.9)

2 (0.4)

123 (28.4)

5 (1.2)

History of coronary artery disease or congestive heart failure

191 (33.6)

3 (0.5)

125 (28.9)

5 (1.2)

History of pulmonary hypertension

42 (7.4)

3 (0.5)

29 (6.7)

4 (0.9)

History of emphysema

72 (12.7)

5 (0.9)

54 (12.5)

4 (0.9)

History of sleep apnea

158 (27.8)

3 (0.5)

119 (27.5)

3 (0.7)

  1. Data are n (%) or median (Q1, Q3)
  2. aAccording to 2011 ATS/ERS/JRS/ALAT diagnostic guidelines [24]