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Table 4 Methodological quality (Risk of bias)

From: Association between funding source, methodological quality and research outcomes in randomized controlled trials of synbiotics, probiotics and prebiotics added to infant formula: A Systematic Review

  N (%)
Quality of studies N = 67 Low risk High risk Unclear
Sequence generation 42 (62.7)   25 (37.3)
Allocation concealment 32 (47.8)   35 (52.2)
Blinding 31 (46.3)   36 (53.7)
Incomplete Outcome data 52 (77.6) 1 (1.5) 14 (20.9)
Selective reporting 57 (85.1) 7 (10.4) 3 (4.5)
Other bias 53 (79.1)   14 (20.9)