ABC | Volume 113, Nº5, November 2019

Original Article Congo et al. New-Onset atrial fibrillation in STEMI Arq Bras Cardiol. 2019; 113(5):948-957 Table 1 – Baseline characteristics N All Group 1 – No AF Group 2 – New onset AF p OR (CI 95%) 6325 5960 (94.2%) 365 (5.8%) Female (%) 24.2 23.6 34.2 < 0.001 1.69 (1.35–2.12) Age (years) ≥ 75 (%) 63 ± 13 62 ± 13 71 ± 13 < 0.001 3.24 (2.61–4.01) 21.6 20.1 44.9 < 0.001 BMI >30 (%) 20.1 20.2 18.3 0.413 0.89 (0.67–1.18) Arterial hypertension (%) 59.6 59.0 69.1 < 0.001 1.55 (1.23–1.95) Diabetes mellitus (%) 23.7 23.4 28.8 0.021 1.32 (1.04–1.67) Dyslipidemia (%) 51.1 51.4 47.7 0.186 0.86 (0.69–1.07) Smoking habits (%) 38.6 39.3 28.6 < 0.001 0.55 (0.43–0.69) Family history of coronary disease (%) 8.5 8.8 2.4 < 0.001 0.25 (0.12–0.53) Prior MI (%) 10.1 10.1 9.9 0.881 0.97 (0.68–1.39) Prior PCI (%) 8.5 8.7 5.8 0.051 0.64 (0.41–1.00) Prior CABG (%) 1.0 0.9 2.5 0.011 2.71 (1.33–5.52) Valvular heart disease (%) 0.9 0.7 3.4 < 0.001 4.61 (2.41–8.81) History of heart failure (%) 1.4 1.3 3.6 < 0.001 2.81 (1.55–5.11) Previous stroke (%) 5.4 5.0 10.4 < 0.001 2.19 (1.53–3.12) Peripheral artery disease (%) 2.6 2.5 5.0 0.004 2.06(1.25–3.40) Pacemaker/ ICD (%) 0.4 0.4 0.5 0.647 1.48 (0.35–6.32) Chronic renal disease (%) 2.9 2.8 4.1 0.132 1.51 (0.88–2.59) CPOD (%) 3.4 3.2 6.9 < 0.001 2.23 (1.45–3.43) Dementia (%) 1.9 1.7 5.3 < 0.001 3.18 (1.92–5.27) Values are mean±SD, median (P25; P75) or n (%). AF: atrial fibrillation; BMI: body mass index; MI: myocardial infarction; PCI: percutaneous coronary intervention; CABG: coronary artery bypass graft; ICD: implantable cardio-defibrillator; COPD: chronic obstructive pulmonary disease. Table 2 – Clinical data at admission All No AF New onset AF p AMI (%) - Anterior 48.4 48.4 49.0 0.806 - Inferior 50.6 50.6 49.6 0.704 - LBBB 1.0 1.0 1.4 0.424 Heart rate (bpm) >100 bpm (%) 77 ± 19 77 ± 18 79 ± 24 0.066 11.7 11.3 18.7 < 0.001 Systolic arterial pressure (mmHg) < 100 mmHg (%) 135 ± 30 135 ± 30 126 ± 28 < 0.001 12.3 12.0 18.1 0.001 Diastolic arterial pressure (mmHg) < 60 mmHg (%) 80 ± 18 80 ± 18 76 ± 17 < 0.001 14.6 14.4 17.5 0.102 Killip-Kimbal class ≥ 2 (%) 13.0 12.1 27.3 < 0.001 Creatinine (mg/dL) ≥ 2 mg/dL (%) 1 ± 0.8 1 ± 0.8 1.2 ± 0.9 < 0.001 3.6 3.3 8.5 < 0.001 Hemoglobin (g/dL) ≥12 g/dL (%) 14.1 ± 1.8 14.1 ± 1.8 13.5 ± 2 < 0.001 87.8 88.2 81.3 < 0.001 Values are mean ± SD, median (P25; P75) or n (%). AF: atrial fibrillation; AMI: acute myocardial infarction; LBBB: left bundle branch block. 951