Table 3.

GRADE assessment of confidence in effect estimates

Outcome	Risk of bias	Consistency	Directness	Precision	Publication bias	Quality
postpartum anemia on PPD	No serious limitations	Serious limitationsa	No serious limitations	No serious limitations	No serious limitations	Moderate
Anemia during pregnancy on PPD	No serious limitations	Serious limitationsb	No serious limitations	No serious limitations	No serious limitations	Moderate

GRADE; Grading of Recommendations Assessment, Development and Evaluation

^a Considerable heterogeneity: I² = 74.62%

^b Moderate heterogeneity: I² = 36.42%