Study Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Total
(% score yes)
Wyrębek et al. [17] Y Y N N N Y Y Y Y 66.66% Moderate
Burkhardt et al. [28] Y Y N N Y Y Y Y Y 77.77% High

Methodological quality assessment summary of author's judgments for each included study, assessed by the Joanna Briggs Institute Critical Appraisal Checklist for non-randomized clinical trials
Y = yes; N = no; U = unclear.
Total = ΣY/applicable items (the not applicable (NA) items were excluded from the sum).
Methodological quality was categorized as low when the study reaches up to 49% score "yes", moderate when the study reached 50% to 69% score "yes", and high when the study reached more than 70% score "yes"