『Self-Report vs. Reality: Getting Causal About Periodontitis』のカバーアート

Self-Report vs. Reality: Getting Causal About Periodontitis

Self-Report vs. Reality: Getting Causal About Periodontitis

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Can patients’ answers to simple questions—bleeding gums, loose teeth, past deep cleaning—stand in for a periodontal exam when you need causal answers, not just correlations? In this episode, Dr. Alexandre Ribeiro breaks down the validity of self-reported oral-health measures for identifying periodontitis and what that means for study design, clinical audits, and population research. We unpack sensitivity/specificity vs. predictive value, how misclassification bias (differential and non-differential) distorts effect estimates, and when a quick questionnaire can be “good enough” to power causal inference. You’ll also hear practical frameworks—DAGs, validation subsamples, probabilistic bias analysis, and Bayesian/latent-class approaches—to correct or quantify error when full-mouth exams aren’t feasible.

J Periodontol. 2024 September ; 95(9): 892–906. doi:10.1002/JPER.23-0551.


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