Fig. 4From: Disease severity, debridement approach and timing of drug modify outcomes of adjunctive azithromycin in non-surgical management of chronic periodontitis: a multivariate meta-analysisModel performance: 4a: The profile likelihood plot showing study-level random variance component (Sigma squared) for the full-model and 4b: the actual versus the predicted SMD values (blue: CAL, red: PPD, The size of the circle corresponds to the number of subjects in the study)Back to article page