Table I.
Baseline characteristics of patients.
| Characteristic | Population | ≤ 55 years
(according to AJCC stage) |
> 55 years
(according to AJCC stage) |
p-value |
|---|---|---|---|---|
| Patients (%) | 116 | 80 (68.9) | 36 (31.1) | < 0.001 |
| Mean age in years (SD) | 49.2 (± 12.45) | 43.1 (± 8.45) | 63.8 (± 8.58) | < 0.001 |
| Sex (%) | ||||
| Male | 17 (14.7) | 14 (17.5) | 3 (8.4) | 0.26 |
| Female | 99 (85.3) | 66 (82.5) | 33 (91.6) | |
| FNC (%) | ||||
| TIR1c | 0 (0) | 0 (0) | 0 (0) | 0.99 |
| TIR3a | 6 (5.2) | 3 (3.75) | 3 (8.34) | 0.56 |
| TIR3b | 41 (35.3) | 32(40) | 9(25) | 0.17 |
| TIR4 | 26 (22.4) | 15 (18.75) | 11 (30.55) | 0.24 |
| TIR5 | 43 (37.1) | 30 (37.5) | 13 (36.11) | 0.72 |
| Surgery (%) | ||||
| TT/NTT | 110 (94.8) | 78 (97.5) | 32 (88.9) | 0.08 |
| HT | 6 (5.2) | 2 (2.5) | 4 (11.1) | |
| Laterality of tumour (%) | ||||
| Right | 48 (41.4) | 29(35) | 19 (52.8) | 0.06 |
| Left | 68 (58.6) | 53(65) | 15 (47.2) | |
| Anatomopathological reports (%) | ||||
| PTC | 106 (91.4) | 74 (92.5) | 32 (88.9) | 0.49 |
| FTC | 10 (8.6) | 6 (7.5) | 4 (11.1) | |
| Mean maximum diameter in cm (SD) | 1.37 (± 1.89) | 1.47 (± 2.2) | 1.15 (± 0.8) | 0.403 |
| Stage (%) | ||||
| I | 111 (95.7) | 80(100) | 31 (86.1) | 0.002 |
| II | 5 (4.3) | 0 (0) | 5 (13.9) | |
| Microcarcinoma (%) | 58(50) | 40(50) | 18(50) | 0.99 |
SD: standard deviation; PTC: papillary thyroid carcinoma; FTC: follicular thyroid carcinoma; TT: total thyroidectomy; NTT: near total thyroidectomy; HT: hemithyroidectomy.