Fig. 3
From: Appraisal of systematic reviews on interventions for postpartum depression: systematic review

Association Between Publication Factors and Methodological Quality. A: AMSTAR score vs. journal impact factor (p = 0.03, r = 0.24; 95% CI, 0.02 to 0.43). B: AMSTAR score vs. number of citations (p = 0.27, r = 0.12; 95% CI, − 0.09 to 0.34). C: AMSTAR score vs. publication year (p = 0.14, r = 0.16; 95% CI, − 0.05 to 0.37). D: Differences in AMSTAR score in papers funded by government vs. non-government sources. (p = 0.18) E: Differences in AMSTAR score for papers published by the Cochrane Collaboration vs. published in non-Cochrane journals (**p = 0.007)