Figure 3. Reduction in SCD risk associated with smoking cessation among U.S middle-aged women.

The reference category is current smokers. The white diamond represents age-adjusted HR. The black diamond represents multivariable-adjusted HR. P value for trend <0.0001 in age and multivariable adjusted models.

HR indicates hazard ratio; SCD, sudden cardiac death. Adapted from Sandhu et al⁷² with permission.