A quantitative bias analysis to assess the impact of unmeasured confounding on associations between diabetes and periodontitis.
Talal S AlshihaybElizabeth A KayeYihong ZhaoCataldo W LeoneBrenda HeatonPublished in: Journal of clinical periodontology (2020)
Presence of unmeasured confounding does not explain observed associations between pre-existing diabetes and incident periodontitis. However, presence of weak unmeasured confounding eliminated observed associations between pre-existing periodontitis and incident diabetes. These results clarify the bidirectional periodontitis-diabetes association.