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Table 3 Assessment of the included studies using the Newcastle-Ottawa scale

From: Gender and birth weight as risk factors for anastomotic stricture after esophageal atresia repair: a systematic review and meta-analysis

Study Selection Comparability Outcome Score
  Representativeness of the exposed cohort Selection of the non-exposed cohort Ascertainment of exposure Demonstration that the outcome of interest was not present at the start of the study Comparability of cohorts on the basis of the design or analysis Outcome Assessment of outcome Follow-up long enough for outcomes to occur Adequacy of follow-up of cohorts  
Michaud et al. (2001) [14] + + + + Stricture + + 6
Allin et al. (2014) [15] + + + + Stricture + + + 7
Nice et al. (2016) [16] + + + + Stricture + + 6
Okata et al. (2016) [7] + + + + + Stricture + + + 8
Stenström et al. (2017) [17] + + + + + Stricture + + + 8
Donoso et al. (2017) [8] + + + + ++ Stricture + + 8