ABC | Volume 111, Nº2, August 2018

Original Article Sampaio et al Monitoring of rhythm, atrial fibrillation and stroke Arq Bras Cardiol. 2018; 111(2):122-131 Table 1 – Patients’ characteristics by study groups Variables Sample (n = 52) stroke/TIA (n = 26) Controls (n = 26) P-value Clinical data Male sex 27 (51.9%) 14 (53.8%) 13 (50%) 1.000 Q Age (years) 70.7 ± 10.5 70.9 ± 11.4 70.6 ± 9.7 0.917 T ≥ 65 years 38 (73.1%) 20 (76.9%) 18 (69.2%) 0.755 Q White race 40 (76.9%) 17 (65.4%) 23 (88.5%) 0.100 F BMI (kg/m 2 ) 25.5 ± 5.6 25.6 ± 4.2 25.4 ± 6.9 0.498 W > 30 kg/m 2 11 (21.2%) 3 (11.5%) 8 (30.8%) 0.173 F Smoking 11 (21.2%) 9 (34.6%) 2 (7.7%) 0.038 F < 65 years 3 (21.4%) 2 (33.3%) 1 (12.5%) 0.539 F ≥ 65 years 8 (21.1%) 7 (35%) 1 (5.6%) 0.045 F Alcohol consumption 10 (19.2%) 7 (26.9%) 3 (11.5%) 0.291 F Corrected CHADS 2 1.8 ± 0.9 1.8 ± 1 1.9 ± 0.8 0.831 W Corrected CHA 2 DS 2 -VASc 3.3 ± 1.2 3.3 ± 1.3 3.3 ± 1.2 0.598 W Comorbidities Arterial hypertension 44 (84.6%) 23 (88.5%) 21 (80.8%) 0.703 F Diabetes mellitus 27 (51.9%) 13 (50%) 14 (53.8%) 1.000 F Previous stroke 2 6 (11.5%) 6 (23.1%) - Previous TIA 2 6 (11.5%) 6 (23.1%) - Coronary insufficiency 5 (9.6%) 2 (7.7%) 3 (11.5%) 1.000 F Congestive heart failure 5 (9.6%) 3 (11.5%) 2 (7.7%) 1.000 F Kidney failure 2 (3.8%) 2 (7.7%) - Echocardiography Aorta (mm) 32.6 ± 3.9 33.6 ± 4.3 31.6 ± 3.3 0.079 T Left atrium (mm) 36.9 ± 4.5 36.3 ± 4 37.6 ± 4.9 0.296 T Ejection fraction (%) 63.6 ± 10.3 61 ± 11.3 66 ± 8.9 0.049 W Interventricular septum (mm) 10.3 ± 1.4 10.7 ± 1.4 10 ± 1.3 0.086 W RV posterior wall (mm) 9.9 ± 1.3 10.1 ± 1.4 9.8 ± 1.3 0.356 W Laboratory data Glucose (mg/dl) 113 ± 57.5 125.5 ± 76.6 100.5 ± 23.5 0.098 W Glycated hemoglobin (%) 6.1 ± 0.7 6.1 ± 0.8 6.1 ± 0.7 0.848 T Creatinine (mg/dl) 1.01 ± 0.38 1.06 ± 0.44 0.96 ± 0.31 0.614 W HDL (mg/dl) 53.1 ± 15.7 48.8 ± 11.8 57.1 ± 18.1 0.059 T LDL (mg/dl) 87.2 ± 30.8 91.1 ± 33.8 83.3 ± 27.7 0.376 T Triglycerides (mg/dl) 142.8 ± 96.3 112.4 ± 42.9 171.9 ± 122.4 0.060 W TSH (nU/L) 3 ± 3.21 2.70 ± 2.39 3.22 ± 3.82 0.459 W Free T4 (ng/dl) 1.03 ± 0.23 1.10 ± 0.25 0.96 ± 0.20 0.038 T Numerical variables are expressed as mean ± standard deviation; TIA: transient ischemic attack; 1 Corrected CHADS 2 and CHA 2 DS 2 -VASc scores represent the subtraction of two points from the original scores in the stroke group; 2 previous stroke and TIA were found only in the stroke group (exclusion criteria for controls); F exact Fisher’s test; Q chi-square test of independence; W Wilcoxon Mann-Whitney test and T Student’s t-test for independent samples 125