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Respiratory medicine
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Acute exacerbation in rheumatoid arthritis-associated interstitial lung disease: a retrospective case control study
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- Published on: 23 November 2015
- Published on: 23 November 2015Comment on the article: Acute exacerbation (AE) in rheumatoid arthritis associated interstitial lung disease: a retrospective case control study.Show More
Regarding the article of Hozumi H et. al. (1) I am concerned about the conclusions obtained with an invalid analysis of the data. Hazard ratios (HR) are not the appropriate measure of strength of association in the information presented by Hozumi et. al. First, it seems that patients received different treatments during follow up, in order to correctly use Cox regression analysis to obtain HR, patients must have being r...
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