240 Chapter 10 Study Selection: Representativeness of the exposed cohort Selection: Selection of the non-exposed cohort Selection: Ascertainment of exposure Selection: Outcome of interest not present at start Comparability: Study controls for level of acute illness Comparability: Study controls for any additional factor Outcome: Assessment of outcome Outcome: Follow-up long enough for outcomes to occur Outcome: Adequacy of follow up of cohorts Risk of bias Abbas 2020 b a a a b b b a a Poor Allard 2008 b a a a b a b a a Good Ammerlaan 2009 a a a a b b b a a Poor Asgeirsson 2011 b a a a b b b a a Poor Austin 2020 b a a a a a b a a Good Ayau 2017 c a a a b b b a a Poor Bai 2015 c a a a a a b a a Good Bassetti 2017 b a a a b b b a a Poor Battle 2022 b a a a b b b a a Poor Ben-Zvi 2019 b a a a b b b a a Poor Benfield 2007 b a a a b a b a b Good Blomfeldt 2016 b a a a b a b a d Good Braquet 2016 b a a a a a b a b Good Chavez 2022 b a a a b b b a d Poor Chen 2010 b a a a a a b a a Good Chen 2015 b a a a b b b a b Poor Chen 2021 c a a a b b b a a Poor Chihara 2009 c a a a b b b a a Poor Chung 2021 c a a a b b b a a Poor Cobussen 2018 b a a a a a b a a Good
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