Table 4 Univariate logistic regression analysis for initiating antifibrotic treatment

Age 66–75 vs 50–65

0.66

0.32–1.35

0.25

Age over 75 vs 50–65

0.21

0.10–0-45

 < 0.0001

Age 66–75 vs over 75

3.14

1.71–5.77

0.0002

Male vs female

1.40

0.82–2.36

0.21

FVC 75% or under vs FVC over 75%

2.29

1.27–4.14

0.0061

DLCO/VA 55% or under vs DLCO/VA over 55%

1.80

0.99–3.27

0.05

Other medicines 2–4 vs 0–1

1.04

0.47–2.28

0.92

Other medicines 5 or more vs 0–1

0.91

0.51–1.61

0.74

Other medicines 2–4 vs 5 or more

1.15

0.57–2.30

0.70