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Arterial stiffness and central blood pressure, as determined by pulse wave analysis, in rheumatoid arthritis
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  • Published on:
    Arterial stiffness is increased in rheumatoid arthritis!
    • Rainer Klocke
    • Other Contributors:
      • John R. Cockcroft, Gordon J. Taylor, David R. Blake

    Dear Editor,

    We thank Dr Chirinos for his interest in our article and appreciate his comments [1].

    We would disagree, however, with his suggestion that paired t-test is only appropriately used to analyze repeated measurements before and after an intervention in a single sample population. In our study the statistical analysis by a paired t-test was decided before data collection and based on the study d...

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    Conflict of Interest:
    None declared.
  • Published on:
    Arterial stiffness is increased in rheumatoid arthritis
    • Rainer Klocke, Specialist Registrar in Rheumatology
    • Other Contributors:
      • John R. Cockcroft, Gordon J. Taylor and David R. Blake

    Dear Editor,

    We thank Dr Chirinos for his interest in our article and appreciate his comments [1].

    We would disagree, however, with his suggestion that paired t-test is only appropriately used to analyze repeated measurements before and after an intervention in a single sample population. In our study the statistical analysis by a paired t-test was determined before data collection and based on the stu...

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    Conflict of Interest:
    None declared.
  • Published on:
    Is arterial stiffness increased in rheumatoid arthritis?

    Dear Editor

    I read the recent study by Klocke et al. with great interest.[1]

    The authors reported increased arterial stiffness as estimated by the analysis of arterial waveforms with aplanation tonometry in patients with rheumatoid arthritis (RA) when compared to healthy controls. Their findings can yield an important clue to understanding the increased cardiovascular mortality in RA. However, the...

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    Conflict of Interest:
    None declared.