Table 1.
Clinical characteristics of patients with Graves' disease (GD).
| Characteristics | N | (%) |
| Male | 481 | 97 (20.2) |
| Age of onset of GD (yr)* | 448 | 38.79 ± 14.6 |
| Disease duration (yr)* | 447 | 4.72 ± 6.26 |
| Ophthalmopathy (NOSPECS class III and higher) |
459 | 170 (37.0) |
| Cigarette smokers | 435 | 192 (44.1) |
| Family history of AITD | 422 | 133 (31.5) |
| Therapy for hyperthyroidism: | 457 | |
| Antithyroid drugs | 150 (32.9) | |
| Radioactive iodine | 230 (50.3) | |
| Surgery | 77 (16.8) |
N - number of patients available for analysis.
* Age of onset and disease duration are presented as mean ± SD.
AITD - autoimmune thyroid diseases.