CRP and atrial fibrillation: Finally, Sano et al. [37] found an association between incident AF (28 subjects over 673 total subjects, 4.1%) and mortality (OR: 4.71; 95% CI: 1.63, 13.6) in a multivariable model that included age, sex, the number of comorbidities, respiratory rate, oxygen saturation, urea and CRP.