Table 1.
Comparison the stages of study with different parameters
| Parameter | 1996–2002 | 2003–2009 | P value |
|---|---|---|---|
| N |
618 |
967 |
|
| Age |
42.7 ± 5.7 |
41.9 ± 3.8 |
|
| Gender (%) |
|
|
|
| Male |
128 (20) |
205 (21) |
|
| Female |
490 (80) |
762 (79) |
|
| Carcinoma (%) |
52 (8.4) |
164 (16.9) |
0.021 |
| Papillary |
41 (78.8) |
142 (86.5) |
0.023 |
| Follicular |
7 (13.4) |
17 (10.3) |
|
| Medullar |
2 (3.9) |
3 (2.5) |
|
| Other |
2 (3.9) |
3 (2.5) |
|
| Surgical operation (%) |
|
|
|
| BTT |
273 (44.1) |
776 (80.2) |
0.029 |
| BST |
302 (48.8) |
141 (14.5) |
0.032 |
| Lobectomy | 43 (7.1) | 50 (5.3) |