C-reactive protein for prediction of atrial fibrillation recurrence after catheter ablation

Table 4 Hazard ratios for recurrent AF after catheter ablation according to CRP cut-off value of 3 mg/l

Variable	CRP level, mg/l
Variable	< 3^a	≥ 3
Events/Patients	181/551	66/160
Incidence, %^b	36.9	53.8
95% CI	31.6–43.2	41.6–69.6
Hazard ratio unadjusted	1.0	1.45
95% CI	–	1.09–1.92
P value	–	0.010
Hazard ratio adjusted for age and sex	1.0	1.41
95% CI	–	1.06–1.88
P value	–	0.017
Hazard ratio adjusted for age and sex + additional factors	1.0	1.44
95% CI	–	1.06–1.95
P value	–	0.019

Models adjusted for additional factors controlled for body mass index, AF type (paroxysmal vs. persistent), history of hypertension (yes vs. no), history of heart failure (yes vs. no), history of obstructive sleep apnea (yes vs. no), duration of AF (years), and LAD
Multivariable model included n = 659 patients
^aCRP group < 3 mg/l served as reference for each comparison
^bIncidence at 1 year of follow-up in percent

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