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Comparison of two different approaches for the analysis of data from a prospective cohort study: an application to work related risk factors for low back pain
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  • Published on:
    Generalised estimating equations and low back pain: a response to Hoogendoorn et al.
    • Elaine F Harkness, PhD Student, ARC Epidemiology Unit
    • Other Contributors:
      • Elizabeth S Nahit, Gary J Macfarlane, Alan J Silman, Graham Dunn, John McBeth

    Dear Editor

    We read with interest the article by Hoogendoorn et al. (2002) who examined the use of different approaches to analysing data from their prospective cohort study of work-related exposures and the future onset of low back pain.[1]

    Exposures and outcomes are time dependent factors as they are subject to change over time. The strength of the relationship depends on the assumptions of time depend...

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    Conflict of Interest:
    None declared.
  • Published on:
    TABLE 1 (Part i): Harkness et al response to Hoogendoorn et al.
    • Elaine F Harkness, PhD Student, ARC Epidemiology Unit
    • Other Contributors:
      • Elizabeth S Nahit, Gary J Macfarlane, Alan J Silman, Graham Dunn, John McBeth

    Table 1(i): Work-related mechanical risk factors and new onset low back pain*

    ...

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    Conflict of Interest:
    None declared.
  • Published on:
    TABLE 1 (Part ii) Harkness et al. response to Hoogendoorn et al.
    • Elaine F Harkness, PhD Student, ARC Epidemiology Unit
    • Other Contributors:
      • Elizabeth S Nahit, Gary J Macfarlane, Alan J Silman, Graham Dunn, John McBeth

    Table 1(ii): Work-related mechanical risk factors and new onset low back pain*
    Univariate associations

     ...

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    Conflict of Interest:
    None declared.
  • Published on:
    TABLE 2: Harkness et al. response to Hoogendoorn et al.
    • Elaine F Harkness, PhD Student, ARC Epidemiology Unit
    • Other Contributors:
      • Elizabeth S Nahit, Gary J Macfarlane, Alan J Silman, Graham Dunn, John McBeth

    Table 2: Work-related psychosocial risk factors and new onset low back pain*

    ...

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    Conflict of Interest:
    None declared.