Clinical significance and risk factors for new onset and recurring atrial fibrillation following cardiac surgery - a retrospective data analysis

Table 3 Multiple logistic regression analysis for postoperative new onset AF as outcome variable

Variable	OR (95% CI)	p-Value
Age (per decade)	1.448 (1.241–1.76)	<0.0001
Type surgery (relative to CABG)
Valve	1.396 (0.924–2.107)	0.113
CABG + valve	1.711 (1.008–2.903)	0.047
Ventricular arrhythmias	3.55 (0.859–14.66)	0.08
Epinephrine administration	1.121 (0.662–1.9)	0.67
ALT concentration	1.0 (0.999–1.0004)	0.856
C-reactive protein concentration	1.06 (1.033–1.088)	<0.0001
Creatinine concentration	1.287 (1.022–1.621)	0.032
Calcium concentration	1.01 (0.977–1.045)	0.547
Fluid balance (per litre)	1.078 (0.962–1.207)	0.195
Horowitz index	0.996 (0.993–0.999)	0.012

Data are shown as odds ratios (OR) together with the 95% confidence interval (CI) and the corresponding p-value. For ALT, C-reactive protein, creatinine, calcium concentrations and fluid balance, the maximal recorded value per patient was used for model fitting. For the Horowitz index, the minimal recorded value was used for model estimation. Results from the univariate analyses are shown in Additional file 1: Table S1
AF Atrial fibrillation; ALT Alanine transaminase, CABG Coronary artery bypass grafting

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