1. Lung Function Tests in Patients With Idiopathic Pulmonary Fibrosis
Reinhard Erbes, MD, Tom Schaberg, MD, Robert Loddenkemper, MD, FCCP 
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Volume 111, Issue 1, Pages (January 1997)
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Copyright © 1997 The American College of Chest Physicians Terms and Conditions

2. FIGURE 1
Histogram: years of observation; dead or alive at the end of observation.
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Copyright © 1997 The American College of Chest Physicians Terms and Conditions

3. FIGURE 2
Survival of all patients in relation to age at presentation (p<0.01). Heavy line = all patients (n=99); large dashed line = younger than 50 years (n=33); short dashed line = 50 years or older (n=66); thin line = life expectancy at 50 years.
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Copyright © 1997 The American College of Chest Physicians Terms and Conditions

4. FIGURE 3
Survival in relation to the lung volumes of the patients at presentation (p<0.05). Heavy line = TLC ≥78% predicted (n=45); short dashed line = TLC <78% predicted (n=50); thin line = TLC ≥78% and VC ≥83% predicted (n=29); heavy dashed line = TLC <78% and VC <83% predicted (n=39).
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Copyright © 1997 The American College of Chest Physicians Terms and Conditions

5. FIGURE 4
Survival in relation to the gas transfer at rest of the patients at presentation (p>0.05). Solid line = Dco/VA≥72% (n=12); dashed line = Dco/VA <72% (n=58).
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Copyright © 1997 The American College of Chest Physicians Terms and Conditions

6. FIGURE 5
Survival in relation the V ˙ po2 and P(A-a)O2 (related to O2 uptake in percent predicted) during exercise (p>0.05). Heavy line = significant Po2 decrease ( V ˙ pO2) (n=36); heavy dashed line = no decrease, insignificant decrease, or increase of PO2 ( V ˙ pO2) (n=20); thin line = P(A-a)O2 >41 mm Hg (n=45); thin dashed line = P(A-a)O2 ≤41 mm Hg (n = 7).
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Copyright © 1997 The American College of Chest Physicians Terms and Conditions