Table 1.

Reporting quality of studies according to the VAKS and STROBE criteria

Author	Assessment tool	Quality of studies
Vergara et al.[10]	VAKS checklist	High
Liu et al.[11]	STROBE checklist	Moderate
Gray et al.[12]	VAKS Checklist	High
Day et al.[13]	STROBE checklist	Moderate
Loga et al.[14]	VAKS checklist	High
Parekh et al.[15]	STROBE checklist	High
Odell et al.[16]	STROBE checklist	Moderate
Guilfoyle et al.[17]	STROBE checklist	Moderate
Werner et al.[18]	STROBE checklist	Moderate
Jelenova et al.[19]	STROBE checklist	Moderate
Lindfred et al.[20]	STROBE checklist	High
Greenley et al.[21]	STROBE checklist	Moderate
Sin et al.[22]	STROBE checklist	High
Magro et al.[23]	STROBE checklist	High
Lindström et al.[24]	STROBE checklist	High
Plevinsky et al.[25]	STROBE checklist	Moderate