Table 1 Quality assessment of the studies included in this literature review

Study

Methods

Results

Discussion

Objectives and rationale

Study design

Setting

Participants’

eligibility

matching

criteria

Variables

Data

sources and

measurements

Addressing

potential

sources

of bias

Sample

size

Quantitative

variables

Statistical

methods

Participants

Descriptive

data

Outcome

data

Main results

and other

analyses

Generalizability

Funding

and

conflicts

of interest