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Table 3 Quality assessment of Case series studies

From: Does malalignment affect patient reported outcomes following total knee arthroplasty: a systematic review of the literature

Author Quality assessment of case series
Consecutive selection of patients? Were outcomes measured in an objective way? Were confounders identified and controlled? Was follow up sufficiently long and complete
Aglietti et al. (2007) Yes ? No Yes
Bach et al. (2009) Yes ? No Yes
Bankes et al. (2003) Yes Yes No Yes
Howell et al. (2013b) ? Yes Yes Yes
Longstaff et al. (2009) Yes Yes Yes Yes
Rienmüller et al. (2012) Yes ? No Yes
  1. Assessed using AHRQ design specific scale (Stang 2010)