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. Author manuscript; available in PMC: 2023 Jan 3.
Published in final edited form as: J Thorac Cardiovasc Surg. 2020 May 5;163(2):629–641.e7. doi: 10.1016/j.jtcvs.2020.04.100

TABLE E5.

Risk adjusted predictors of ATA recurrence over 10 years after CMP-IV (Fine–Gray regression)

Unadjusted
Adjusted
Variable SHR (95% CI) P value SHR (95% CI) P value

Age, y 1.03 (1.01–1.04) <.001 1.02 (1.00–1.04) .027
Sex (female) 1.24 (0.94–1.65) .130 1.26 (0.89–1.79) .190
BMI, kg/m2 0.99 (0.98–1.02) .910 1.00 (0.98–1.03) .850
Diabetes 1.16 (0.82–1.63) .400 0.98 (0.67–1.44) .910
Dyslipidemia 0.96 (0.72–1.27) .780 0.79 (0.57–1.10) .160
Hypertension 1.22 (0.89–1.67) .210 1.02 (0.72–1.43) .930
Renal failure 0.89 (0.42–1.90) .770 0.77 (0.33–1.81) .550
Chronic lung disease (moderate or greater) 0.45 (0.20–0.99) .048 0.33 (0.15–0.75) .008
History/current smoker 1.21 (0.91–1.61) .200 1.13 (0.82–1.56) .460
Peripheral vascular disease 2.32 (1.61–3.35) <.001 1.89 (1.26–2.83) .002
Cerebrovascular disease 1.11 (0.77–1.60) .570 1.04 (0.70–1.53) .860
Myocardial infarction 1.32 (0.87–1.99) .190 1.26 (0.79–2.03) .330
LVEF, % 0.99 (0.98–1.00) .047 1.01 (0.98–1.01) .097
NYHA class III or IV symptoms 1.45 (1.08–1.94) .012 1.45 (0.81–1.62) .430
Nonparoxysmal AF 1.58 (1.17–2.13) .003 1.45 (1.04–2.01) .029
Left atrial size, cm 1.25 (1.11–1.41) <.001 1.18 (1.02–1.36) .022
Preoperative duration of AF, y 1.00 (1.00–1.00) .047 1.00 (1.00–1.00) .120
Failed catheter ablation 0.98 (0.71–1.37) .930 1.33 (0.87–2.02) .190
Sternotomy 1.35 (0.96–1.90) .088 1.05 (0.71–1.55) .810
Concomitant procedure 1.32 (0.95–1.83) .100 1.12 (0.73–1.73) .600
Biatrial CMP-IV lesion set 1.01 (0.61–1.66) .980 0.80 (0.47–1.39) .430
Postoperative mediastinitis 0.73 (0.09–6.00) .770 0.97 (0.19–4.93) .970
Prolonged ventilation 1.21 (0.84–1.74) .310 0.88 (0.54–1.42) .590
Postoperative pneumonia 1.33 (0.74–2.41) .350 1.47 (0.70–3.06) .310
Postoperative (early*) atrial tachyarrhythmias 1.95 (1.44–2.62) <.001 1.48 (1.04–2.11) .030
Absence of sinus rhythm at discharge 2.50 (1.78–3.52) <.001 1.76 (1.18–2.65) .006
Postoperative permanent pacemaker placement 1.04 (0.69–1.57) .850 0.92 (0.58–1.47) .740

Statistically significant P values are in bold. SHR, Subdistribution hazard ratio; CI, confidence interval; BMI, body mass index; LVEF, left ventricular ejection fraction; NYHA, New York Heart Association; AF, atrial fibrillation; CMP-IV, Cox-Maze IV procedure. *Early defined as in-hospital (prior to discharge) atrial tachyarrhythmias.