Skip to main content

Table 2 Quality assessment of Case control and Cohort studies

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

Author Quality assessment of case control studies
Is the case definition adequate? Representativeness of the cases Selection of controls Definition of controls Comparability of cases and controls on basis of design or analysis Ascertainment of exposure Same method of ascertainment for cases and controls Non-Response rate Total Newcastle Ottawa Scale (possible 9 starts)
Barrack et al. (2001) Yes Yes Yes Yes Yes Yes Yes Yes 8*
Bell et al. (2014) Yes Yes Yes Yes Yes Yes Yes Yes 8*
Czurda et al. (2010) Yes Yes Yes Yes Yes No Yes Yes 7*
Magnussen et al. (2011) Yes Yes Yes Yes Yes No Yes Yes 7*
Matziolis et al. (2010) Yes Yes Yes Yes Yes Yes Yes Yes 8*
Nicoll and Rowley (2010) Yes Yes Yes Yes Yes Yes Yes Yes 8*
Stulberg et al. (2008) Yes Yes Yes Yes Yes Yes Yes Yes 8*
  1. Assessed using the Ottawa-Newcastle score (Viswanathan et al. 2008a)
  2. * Represents how many stars were achieved in the assessment of quality for each study