CRP and atrial fibrillation: LTL (OR 0.365, 95% CI 0.235-0.568; P < 0.001), CRP (OR 2.250, 95% CI 1.143-4.428; P = 0.019), and serum PGC-1α (OR 0.993, 95% CI 0.988-0.997; P = 0.002) were still significantly associated with the presence of AF (Figure 5).