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