Table 3. Risk of bias assessment (3/5).

Studies

Liu et al., 2018 [32]

Ali-Sisto et al., 2018 [33]

Liu et al., 2018 [34]

Gui et al., 2018 [35]

Czysz et al., 2019 [36]

Bhattacharyya et al., 2019 [37]

Bhattacharyya et al., 2019 [38]

Chen et al., 2019 [39]

Ahmed et al., 2020 [40]

Brunoni et al., 2020 [41]

Han et al., 2020 [42]

STROBE items

Title and abstract

X

X

X

X

X

X

X

X

X

Background/rationale

X

X

X

X

X

X

X

X

X

X

X

Objectives

X

X

X

X

X

X

X

X

X

X

X

Study design

X

X

X

X

X

X

X

X

X

X

X

Setting

X

X

X

X

X

X

X

X

X

Participants

X

X

X

X

X

X

X

X

Variables

X

X

X

X

X

X

X

X

X

X

Data source/measurement

X

X

X

X

X

X

X

X

X

X

X

Bias

X

X

X

X

Study size

X

X

X

X

X

X

X

X

X

Quantitative variables

X

X

X

X

X

X

X

X

X

X

X

Statistical methods

X

X

X

X

X

X

X

X

X

X

X

Participants

X

X

X

X

X

Descriptive data

X

X

X

X

X

X

X

X

X

X

Outcome data

X

X

X

X

X

X

X

X

X

X

X

Main results

X

X

X

X

X

X

X

X

X

X

X

Other analysis

X

X

X

X

X

X

X

X

X

X

X

Key results

X

X

X

X

X

X

X

X

X

X

X

Limitations

X

X

X

X

X

X

X

X

X

X

Interpretation

X

X

X

X

X

X

X

X

X

X

X

Generalizability

X

X

X

X

X

X

X

X

Funding

X

X

X

X

X

X

X

X

X

X

X

Total

17

20

21

21

22

18

19

17

17

22

21