Table 4. Quality of the reporting of the results using the STROBE checklist.

Score represents the number of items (with percentage of items) on the checklist that were reported satisfactorily in each study. Therefore, a high score represents a high adherence to reporting guidelines, while a low score represents low adherence to reporting guidelines.

	First author	Design	Score
1	Lecker, 2012	CSS	(13.3/22) 60.45 %
2	Pardo, 2014	CSS	(12.2/22) 55.45 %
3	Hofmann, 2014	CSS	(15.6/22) 70.9 %
4	Ijiri, 2015b	CSS	(13.5/22) 61.36%
5	Jedrychowski 2015	CSS	(12/22) 54.45 %
6	Kwaśniewska, 2016	CSS	(15/22) 68.1 %
7	Moreno, 2015	CSS	(12.5/22) 56.81 %
8	Palermo, 2015	CSS	(13.5/22) 61.36 %
9	Al-Daghri, 2015	CSS	(12.8/22) 58.18 %

STROBE: Strengthening the Reporting of Observational Studies in Epidemiology; CSS: Cross-sectional study.