*3.2. Methodological Quality*

The quality of the selected articles has been summarized in Table 4. All five studies were found to be of quality ++. A moderate agreement was reported between the two reviewers, with a kappa value of 0.545.

**Table 4.** Quality of the articles.


1—Clarity of the questioners, 2—Details of the study methodology, 3—Details of the data collection, 4—Research content, 5—Data analysis, 6—Result relevant to the study's objective, 7—Ethics approval. ++ denotes the low level of bias; + means the moderate level of bias; and − indicates a poor level of bias.
