Table 3.
Hazard ratios for recurrent AF after catheter ablation according to CRP quartiles and continuous CRP levels
| Variable | CRP quartile | Continuous | |||
|---|---|---|---|---|---|
| 1a | 2 | 3 | 4 | Per unit increase in log CRP | |
| Quartile value, mg/l | < 0.8 | 0.8–1.4 | 1.5–2.7 | > 2.7 | |
| Hazard ratio unadjusted | 1.0 | 1.23 | 1.10 | 1.59 | 1.19 |
| 95% CI | – | 0.86–1.76 | 0.78–1.62 | 1.13–2.25 | 1.04–1.35 |
| P value | – | 0.25 | 0.53 | 0.008 | 0.009 |
| Hazard ratio adjusted for age and sex | 1.0 | 1.24 | 1.09 | 1.54 | 1.17 |
| 95% CI | – | 0.87–1.77 | 0.75–1.57 | 1.09–2.18 | 1.03–1.34 |
| P value | – | 0.23 | 0.65 | 0.015 | 0.018 |
| Hazard ratio adjusted for age and sex + additional factors | 1.0 | 1.26 | 1.15 | 1.60 | 1.21 |
| 95% CI | – | 0.86–1.84 | 0.78–1.70 | 1.10–2.34 | 1.05–1.39 |
| P value | – | 0.24 | 0.48 | 0.014 | 0.009 |
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 Quartile 1 served as reference group for each comparison