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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)

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BMC Medical Research Methodology

ISSN: 1471-2288

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