Fig. 2

Methodological quality of the articles included in the present revision according to the QUADAS-2 tool [12]. a Risk of bias and applicability concerns graph: review authors’ judgements about each domain presented as percentages across included specific-IgE studies Review Manager (RevMan) [Computer program]. Version 5.3. Copenhagen: The Nordic Cochrane Centre, The Cochrane Collaboration, 2014. b Risk of bias and applicability concerns graph: review authors’ judgements about each domain presented as percentages across included SPT studies. Review Manager (RevMan) [Computer program]. Version 5.3. Copenhagen: The Nordic Cochrane Centre, The Cochrane Collaboration, 2014