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Cited by 764

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Changes in Clinical and Physiologic Variables Predict Survival in Idiopathic Pulmonary Fibrosis

Collard, Harold R., King, Talmadge E., Bartelson, Becki Bucher, Vourlekis, Jason S., Schwarz, Marvin I., Brown, Kevin K.·2003·American Journal of Respiratory and Critical Care Medicine

Abstract

There is significant heterogeneity in survival time among patients with idiopathic pulmonary fibrosis. Studies of baseline clinical and physiologic variables as predictors of survival time have reported inconsistent results. We evaluated the predictive value of changes in clinical and physiologic variables over time for survival time in 81 patients with biopsy-proven idiopathic pulmonary fibrosis. Six-month changes in dyspnea score, total lung capacity, thoracic gas volume, FVC, FEV1, diffusing capacity of carbon monoxide, partial pressure of arterial oxygen, oxygen saturation, and alveolar-arterial oxygen gradient were predictive of survival time even after adjustment for baseline values. Analyses were repeated on 51 patients with 12-month change data. Twelve-month changes in dyspnea score, total lung capacity, FVC, partial pressure of arterial oxygen, oxygen saturation, and alveolar-arterial oxygen gradient were predictive of survival time after adjustment for baseline values. Evaluation of changes in clinical and physiological variables over 6 and 12 months may provide clinicians with more accurate prognostic information than baseline values alone.

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Metadata

Authors
Collard, H. R., King, T. E., Bartelson, B. B., Vourlekis, J. S., Schwarz, M. I., & Brown, K. K.
Venue
American Journal of Respiratory and Critical Care Medicine
Published
2003-09-01
Volume
168
Issue
5
Pages
538-542
ISSN
  • 1073-449X (ISSN-L)
  • 1535-4970
OpenAlex
W2095309945
Cited by
764
References
0
FWCI
19.05
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Changes in Clinical and Physiologic Variables Predict Survival in Idiopathic Pulmonary Fibrosis. https://app.cochat.ai/papers/10.1164/rccm.200211-1311oc
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Collard, H. R., King, T. E., Bartelson, B. B., Vourlekis, J. S., Schwarz, M. I., & Brown, K. K. (2003). Changes in Clinical and Physiologic Variables Predict Survival in Idiopathic Pulmonary Fibrosis. American Journal of Respiratory and Critical Care Medicine. https://doi.org/10.1164/rccm.200211-1311oc

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Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.