Table 1.

STROBE Statement checklist score of included cohort studies

Study	Years	Level of evidence	Score (max. 32)
Dey Hazra et al. [31]	2020	IV	29
Helfen et al. [24]	2018	IV	31
Kuner et al. [32]	2018	IV	26
Sautet et al. [21]	2018	IV	25
Xiong et al. [29]	2018	IV	29
Blake et al. [22]	2017	IV	22
Cisneros and Reiriz [28]	2017	IV	25
Beirer et al. [23]	2015	IV	26
Kraus et al. [33]	2015	IV	27
Loriaut et al. [30]	2013	IV	23