Periodontitis Is Associated With Arterial Stiffness as Measured by Serial Cardio‐Ankle Vascular Index (CAVI): A 10‐Year Cohort Study

ABSTRACT Aim To investigate the effect of periodontitis on the long‐term changes of the cardio‐ankle vascular index (CAVI). Materials and Methods A 10‐year retrospective cohort study of 3842 Thai participants (range 25–76 years) with normal CAVI at the study initiation was undertaken. Full‐mouth periodontal examination was performed by calibrated periodontists, and the extent and severity of periodontitis were determined at 5‐year intervals. Serial CAVI measurements were used to examine the incidence of high CAVI (≥ 9.0) and changes in CAVI over time (ΔCAVI). Results Participants with a higher extent or severity of periodontitis were found to have a significantly higher mean ΔCAVI. The incidence of high CAVI was also observed to be higher in those with periodontitis compared to those without it. The adjusted risk ratios for developing high CAVI were 1.309 and 1.513 for localized and generalized periodontitis, respectively. Participants with severe periodontitis had a 37% higher likelihood of developing CAVI ≥ 9.0 compared to individuals with no/mild periodontitis. This risk was consistent with a significant change in ΔCAVI of 0.054–0.140. Conclusions Periodontitis, both in terms of extent and severity, was found to have a significant dose‐dependent effect on the risk of developing high CAVI over a 10‐year period, suggesting a causal relationship between these two parameters.