Collider bias in the association of periodontitis and carotid intima‐media thickness

Objectives This cross‐sectional study tested the presence of collider bias in the relationship between periodontitis and the carotid intima‐media thickness (cIMT). Methods Data from 480 members of the 1982 Pelotas Birth Cohort, Brazil, were used. Periodontitis at the age of 24 years was determined as the main exposure. cIMT at the age of 30 years was set as the outcome. High‐sensitivity C‐reactive protein (hsCRP) was considered the mediator...