CRP and atrial fibrillation: The recurrent group had significantly higher values for mean left atrium diameter (p < 0.001), percentage of patients with persistent and long AF (p = 0.001), mean CRP level (p = 0.017), mean uric acid (p = 0.002), UHR (p = 0.002) and UCR (p = 0.009) levels (Table 1).