Table 5.

JBI for controlled study

Checklist Reference	Comparable of group? apart from diseases in cases’ absence of control	Appropriate match of cases and control	Same identification of cases and control	Standard measurement in the exposure	Same way of exposure measurement	Confounding factors identified	Strategy to deal with confounding factors	Outcomes assessed in a standard, salid reliable way	The exposure period is long enough	Appropriate statistical analysis	Quality rating
Perunicic-Mladenovic and Filipovic22	Y	Y	Y	U	Y	Y	Y	Y	Y	Y	9/10 M

M, médium; U, Unclear; Y, yes.