Table 3.

The JBI critical appraisal tool: quality appreciation

Reference	Criteria for inclusion in the sample clearly defined	Study participants and the setting described in detail	Exposure measured in a valid and reliable way	Standard criteria used for measurement of the condition	Confounding factors identified	Strategies to deal with confounding factors stated	Outcomes measured in a valid and reliable way	Appropriate statistical analysis used	Overall critical appraisal
Álvarez-Villaseñor 202025	×	✓	✓	✓	✓	✓	?	✓	Low
Angulo-Valenzuela 201626	✓	✓	✓	✓	×	×	✓	?	Low
Caetano-Anolles 201327	×	✓	?	✓	✓	✓	✓	✓	Low
Contreras-Valdez 201528	✓	✓	✓	✓	×	×	✓	✓	Low
Escalante-Izeta 201623	✓	✓	✓	✓	×	?	✓	✓	Low
Flores 201530	✓	✓	✓	✓	✓	✓	✓	✓	High
Garcia-Falconi 201631	×	✓	?	?	✓	✓	✓	✓	Low
Gonzalez-Toche 201732	✓	✓	✓	✓	✓	✓	✓	✓	High
Hernández Nava 202033	✓	✓	✓	✓	✓	?	✓	✓	Unclear
Lopez-Morales 201434	✓	✓	✓	✓	×	×	✓	?	Low
Merino-Zeferino 201835	×	✓	✓	✓	✓	✓	✓	✓	Low
Moreno-Martínez 201836	×	✓	?	✓	✓	✓	✓	✓	Low
Pompa-Guajardo 201737 and Pena 201738	✓	✓	✓	✓	✓	✓	✓	✓	High
Radilla 201339,40 (abstracts)	?	✓	?	✓	?	×	?	?	Low
Radilla-Vazquez 201541	✓	×	?	?	✓	✓	✓	✓	Low
Shamah-Levy 202042	✓	✓	✓	✓	✓	✓	✓	✓	High

Key: ✓, yes; ×, no; ?, unclear.