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Table 7 Risk of bias assessment of included studies

From: Reducing burden from respiratory infections in refugees and immigrants: a systematic review of interventions in OECD, EU, EEA and EU-applicant countries

  Using ROBINS-I-tool for non-randomised studies of cohort-type // Risk of bias due to:
Author (year of publication) Confounding Selection of participants Classification of interventions Deviation from intended interventions Missing data Measurement of outcomes Selection of reported result Overall judgement
De Vallière et al. (2011) [69] Low Low Low Low Low Low Low Low
Pallasch et al. (2005) [67] Moderate Moderate Low Low Moderate Moderate Moderate Moderate
Brockmann et al. (2016) [68] Serious Moderate Low Low Moderate Moderate Serious Serious
Koop et al. (2001) [66] Serious Low Moderate Moderate Low Low Serious Serious
Coady et al. (2008) [58] Moderate Low Low Low Low Moderate Low Moderate
Hoppe et al. (2011) [60] Serious Serious Low Low Critical Serious Serious Critical
Rodriguez-Rieiro et al. (2011) [59] Critical Critical Critical Serious Moderate Moderate Critical Critical
Larson et al. (2009) [56] Serious Low Moderate Low Serious Serious Serious Serious
  Using RoB 2.0 for cluster-randomised parallel group trials of intervention // Risk of bias due to
  Randomisation process Timing of identification and recruitment of individual participants in relation to timing of randomisation Deviations from intended interventions Missing outcome data Measurement of outcomes Selection of reported result Overall judgement
Larson et al. (2010) [57] Low [O1-O4] Low [O1-O4] Some concerns [O1-O4] Low [O1-O4] Some concerns [O1-O4] Low [O1-O4] Some concerns [O1-O4]