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Table 2 Appraisal of the four reviewed studies using the Cochrane risk of bias tool

From: Multidisciplinary approaches to managing osteoarthritis in multiple joint sites: a systematic review

  Hopman-Rock & Westhoff (2000) [16] van Baar et al. (2001) [19] Rosemann et al. (2007) [18] Hansson et al. (2010) [17]
Sequence generation ? + + ?
Allocation concealment ? + + +
Blinding ? ? ? ?
Incomplete outcome data ? + ? +
Selective outcome reporting ? ? ? +
Other sources of bias ? ? ? ?
  1. Key (Low risk of bias = +, High risk = −, Unclear of risk = ?)