Table 1 Baseline characteristics according to thyroid function
From: Thyroid dysfunction in patients with suspected or documented supraventricular tachyarrhythmia
| Â | Euthyroidism | Thyroid dysfunction | p Value |
|---|---|---|---|
(n = 477) | (n = 56) | ||
Sex (male) | 215 (45.1) | 19 (33.9) | 0.12 |
Age (years) | 45.9 ± 15.4 | 44.1 ± 16.6 | 0.41 |
Body mass index (kg/m2) | 23.8 ± 3.5 | 23.1 ± 3.0 | 0.20 |
Hypertension | 75 (15.7) | 9 (16.1) | > 0.999 |
Diabetes | 26 (5.5) | 1 (1.8) | 0.34 |
Echocardiographic results†| |||
 Presence of cardiomyopathy | 5 (1.2) | 0 (0) | > 0.999 |
 LVEF (%) | 63.5 ± 6.5 | 65.1 ± 4.9 | 0.09 |
 LAVI (ml/m2) | 28.0 ± 8.8 | 28.8 ± 8.4 | 0.52 |
Documented SVT | 336 (70.4) | 40 (71.4) | > 0.999 |
Pre-excitation of QRS | 56 (11.7) | 6 (10.7) | 0.84 |
Previous ablation of SVT | 26 (5.5) | 1 (1.8) | 0.34 |
Current medications | |||
Beta blocker | 46 (9.6) | 8 (14.3) | 0.35 |
Calcium channel blocker | 178 (37.3) | 25 (44.6) | 0.31 |
Other antiarrhythmic drugs | 20 (4.2) | 2 (3.6) | > 0.999 |