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Table 13 The risk of bias and study quality for each colic review

From: A comparison of two assessment tools used in overviews of systematic reviews: ROBIS versus AMSTAR-2

Colic

AMSTAR-2

ROBIS

Multiple CAM therapies

 Perry 2011 [29]

Low

Low

 Bruyas-Bertholon 2012 [30]

CL

High

 Harb 2016 [31]

CL

High

 Gutierrez-Castrellon 2017 [32]

CL

High

Manipulation therapies

 Dobson 2012 [33]

High

Low

 Gleberzon 2012 [34]

CL

High

 Carnes 2017 [35]

CL

Unclear

Acupuncture

 Skejeie 2018 [36]

Low

Unclear

Herbal medicine

 Anheyer 2017 [37]

CL

High

Probiotics

 Sung 2013 [38]

CL

Unclear

 Anabrees 2013 [39]

Low

Low

 Urbanska 2014 [40]

CL

High

 Xu 2015 [41]

CL

Low

 Schreck Bird 2017 [42]

CL

High

 Dryl 2018 [43]

CL

High

 Sung 2018 [44]

LOW

Unclear

  1. When AMSTAR-2 is low, this should correspond to ROBIS being of high risk of bias. The italicised reviews show discrepancies between the overall rating of quality/bias