Fig. 7From: Greenness, civil environment, and pregnancy outcomes: perspectives with a systematic review and meta-analysisFunnel plots of term birth weight for publication bias. The analysis was adjusted for demographic characteristics of the subjects (left panel, P = 0.0005 for Egger’s asymmetry test of the funnel plot), with further adjustment for air quality factors (middle panel, P < 0.0001 for Egger’s test) and demographic and civilization factors regardless of air quality effects (right panel, P = 0.0881 for Egger’s test)Back to article page