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Table 1 Reasons for excluding reports initially identified as relevant

From: Antimicrobial drugs for persistent diarrhoea of unknown or non-specific cause in children under six in low and middle income countries: systematic review of randomized controlled trials

Reason for exclusion Number of reports
Did not assess the use of antimicrobials 14
Included only patients with a specific cause of diarrhoea 6
Used an alternative definition of persistent diarrhoea 3
Included adults only 3
Included children with acute diarrhoea only 3
Were review articles 3
Had no control group or were case studies 3
Were undertaken in a high income country 1
Relevant controlled trial but no mention of randomization 1