| Studies parameters | Hypothyroidism under treatment | Maintenance dose of ATD between 3 and 9 months | |
| Gender | Female (n = 796) | 113 (14.2%) | 241 (30.3%) |
| Men (n = 244) | 39 (16%) | 73 (29.9%) | |
| Age | [0 - 25 years] (n = 404) | 59 (14.6%) | 109 (27%) |
| [26 - 50 years] (n = 535) | 75 (14%) | 162 (30.3%) | |
| Over 50 years (n = 101) | 18 (17.8%) | 43 (42.6%) | |
| Orbitopathy | Yes (n = 735) | 106 (14.4%) | 208 (28.3%) |
| No (n = 305) | 46 (15%) | 106 (34.8%) | |
| Size of goiter | Grade 0 - 1 (n = 214) | 38 (17.7%) | 82 (38.3%) |
| Grade 2 (n = 540) | 82 (15.1%) | 160 (29.6%) | |
| Grade 3 (n = 286) | 32 (11.1%) | 72 (25.29%) | |