Table 2.
Univariable and multivariable logistic regression analyses with independent predictors of new‐onset atrial fibrillation (NOAF)
| Variable | Univariable analysis | Multivariable analysis | ||||
|---|---|---|---|---|---|---|
| OR (95% CI) | p value | First model | Second model | |||
| OR (95% CI) | p value | OR (95% CI) | p value | |||
| Age, years | 1.061 (1.038–1.085) | <0.001 | ||||
| Male | 0.501 (0.309–0.810) | 0.005 | ||||
| Diabetes mellitus | 2.863 (1.767–4.637) | <0.001 | ||||
| STEMI | 5.821 (3.294–10.286) | <0.001 | 2.621 (1.046–6.562) | 0.040 | ||
| TIMI flow <3 | 18.781 (8.103–43.532) | <0.001 | 0.173 (0.033–0.902) | 0.037 | 0.163 (0.030–0.876) | 0.034 |
| Admission heart rate >100 (beats/min) | 2.234 (1.303–3.830) | 0.003 | ||||
| Killip class II–IV | 15.479 (8.675–27.619) | <0.001 | ||||
| Admission hemoglobin, g/dl | 0.797 (0.709–0.896) | <0.001 | ||||
| Admission serum creatinine, g/dl | 1.318 (0.840–2.068) | 0.230 | ||||
| WBC, 103/µl | 1.075 (1.014–1.139) | 0.016 | ||||
| CRP(mg/dl) | 1.821 (1.607–2.063) | <0.001 | 2.010. (1.659–2.436) | <0.001 | 2.104 (1.704–2.598) | <0.001 |
| Ejection fraction (%) | 0.905 (0.883–0.927) | <0.001 | 0.961 (0.924–1.000) | 0.050 | 0.956 (0.919–0.994) | 0.024 |
| LAVI(ml/m2) | 1.266 (1.201–1.334) | <0.001 | 1.228 (1.134–1.331) | <0.001 | 1.239 (1.140–1.346) | <0.001 |
| E/E′ | 1.630 (1.457–1.824) | <0.001 | 1.431 (1.223–1.662) | <0.001 | 1.234 (1.223–1.682) | <0.001 |
| SYNTAX score | 1.155 (1.115–1.198) | <0.001 | 1.101 (1.041–1.163) | 0.001 | ||
| Supramedian SS | 10.214 (5.019–20.788) | <0.001 | 5.234 (1.976–13.860) | 0.001 | ||
CRP: C reactive protein; LAVI: left atrial volume index; NOAF: new‐onset atrial fibrillation; SS: SYNTAX score; STEMI: ST‐elevation myocardial infarction; WBC: white blood cell.
A second model of multivariable regression analysis was performed for prediction of NOAF with using dichotomized supramedian SS value instead of continuous SS values.