Table 1 Risk of bias assessment of CRE studies using Newcastle Ottawa tool (Stang 2010). Receiving a star (*) represents that the study has low risk of bias and high quality in that category
Selection | Comparability | Outcome | ||||||
|---|---|---|---|---|---|---|---|---|
Author (Year) | Representative-ness of the exposed cohort | Selection of the non-exposed cohort | Ascertainment of exposure | Demonstration that outcome of interest was not present at start of study | Comparability of cohorts on the basis of design or analysis | Assessment of outcome | Was follow-up long enough for outcomes to occur | Adequacy of follow-up of cohorts |
Bogan (2014) [20] | * | * | * | * | * | * | * | _ |
Brennan (2014) [15] | * | * | * | * | _ | _ | _ | _ |
Gasink (2009) [21] | * | * | * | * | * | * | * | _ |
Guh (2015) [18] | * | * | * | * | _ | _ | _ | _ |
Lesho (2015) [16] | * | * | * | * | _ | _ | _ | _ |
Marquez (2013) [17] | * | * | * | _ | _ | _ | _ | _ |
Patel (2008) [22] | * | * | * | * | * | * | * | _ |
Thaden (2014) [19] | * | * | * | * | _ | _ | _ | _ |
Kalpoe (2012) [23] | * | * | * | * | * | * | * | * |