Fig 1.
Conceptual framework of risk factors for incident depression.
Fig 2.
Results of the systematic literature search.
Table 1.
Criteria for assessing methodological quality.
Table 2.
Characteristics of included studies.
Table 3.
Results of included studies.
Table 4.
Score of studies on each criterium for quality assessment score.
Table 5.
Judgement of risk of bias in 6 domains applying QUIPS tool.