Fig. 2From: Periodontal status, perceived stress, diabetes mellitus and oral hygiene care on quality of life: a structural equation modelling analysisBootstrapped ML standardized estimates for the Confirmatory Factor Analysis (CFA). All obtained effects were significant (p < 0.001). Factors (latent variables) are in ellipses, items (indicator variables) in rectangles and residual error terms in circlesBack to article page