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Female patients with ankylosing spondylitis: analysis of the impact of gender across treatment studies
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  • Published on:
    Response to Feldtkeller et al Letter

    Dear Editor,

    We would like to thank you for your remarks regarding our manuscript van der Horst-Bruinsma et al Ann Rheum Dis 2013;72:1221- 1224.[1] We do agree that in ankylosing spondylitis, onset is more accurately described by onset of symptoms as opposed to age at diagnosis. Unfortunately, we did not collect the time-of-symptom-onset data in three of the four studies in this analysis. Thus, we used the age at d...

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    Conflict of Interest:
    None declared.
  • Published on:
    Impact of gender on outcomes in ankylosing spondylitis

    Dear Editor,

    We read with interest the article on the impact of gender on outcomes in ankylosing spondylitis [1]. In their analysis of four controlled clinical trials, the authors found a higher burden of ankylosing spondylitis (AS) in female patients and less improvement in outcome measures compared with men, "despite women having a later disease onset and shorter disease duration". They conclude that the mechanism...

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    Conflict of Interest:
    None declared.