Table 1

- The prevalence critical appraisal tool.

Criteria	Al Ateeq et al³⁰	Al Zaid et al³¹	Al Hurishi et al³²	Meo et al³³	Mohsin et al²	Al Shehri et al³⁴	Al Malki et al¹
Was the sample representative of the target population?	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Were study participants recruited in an appropriate way?	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Was the sample size adequate? Identified using objective criteria?	Yes	Yes	No	Yes	Yes	No	Yes
Were the study subjects and the setting described in detail?	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Was the data analysis carried out with sufficient coverage of the identified sample?	N/A	Yes	N/A	Yes	Yes	N/A	Yes
Were objective, standard criteria used to measure the condition?	Yes	Yes	No	Yes	Yes	Yes	No
Was the condition measured reliably?	N/A	Yes	N/A	N/A	N/A	N/A	N/A
Was there appropriate statistical analysis accounted for?	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Are all important confounding factors/subgroups/differences identified and accounted for?	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Were subpopulations identified using objective criteria?	Yes	Yes	Yes	Yes	Yes	Yes	Yes

N/A: not applicable