Are the C-reactive protein values and erythrocyte sedimentation rate equivalent when estimating the 28-joint disease activity score in rheumatoid arthritis?

@article{Castrejon2008AreTC,
  title={Are the C-reactive protein values and erythrocyte sedimentation rate equivalent when estimating the 28-joint disease activity score in rheumatoid arthritis?},
  author={Isabel Castrejon and Ana P Ortiz and Rosario Garc{\'i}a-Vicu{\~n}a and Juan Pedro L{\'o}pez-Bote and Alicia Humbr{\'i}a and Loreto Carmona and Isidoro Gonz{\'a}lez-{\'A}lvaro},
  journal={Clinical and experimental rheumatology},
  year={2008},
  volume={26 5},
  pages={769-75}
}
UNLABELLED A formula for calculating disease activity score with 28 joint counts (DAS28) with C-reactive protein (CRP) instead of the erythrocyte sedimentation rate (ESR) has been proposed. OBJECTIVE Here we analyze the factors that contribute to the differences in the DAS28 when calculated using either the ESR (DAS28-ESR) or the CRP values (DAS28-CRP). METHODS We analyzed the data from 587 visits made by 220 patients with early arthritis. The age at the onset of the disease was 51+/-16… CONTINUE READING

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