Table 1.
Clinicopathologic characteristics of the patients in CN and control group
| Characteristic | CN group (n=50) | Control group (n=50) | P value |
|---|---|---|---|
| Age (yr) | 46.98±9.027 | 47.76±13.912 | 0.013a |
| Sex | 0.275b | ||
| Male | 10 (20%) | 6 (12%) | |
| Female | 40 (80%) | 44 (88%) | |
| Central compartment node dissection | 1.000b | ||
| Unilateral | 17 (34%) | 17 (34%) | |
| Bilateral | 33 (66%) | 33 (66%) | |
| Lateral neck dissection | 0.288b | ||
| Yes | 14 (28%) | 19 (38%) | |
| No | 36 (72%) | 31 (62%) | |
| Size of tumor (cm) | 1.36±0.94 | 1.48±1.25 | 0.090a |
| Pathology | - | ||
| Papillary | 47 (94%) | 48 (96%) | |
| Follicular | 1 (2%) | 1 (2%) | |
| Medullary | 2 (4%) | 1 (2%) | |
| Removed central lymph node | 5.78±4.55 | 6.62±5.07 | 0.138a |
| No. of central lymph node metastasis | 1.66±2.353 | 3.06±4.501 | 0.002a |
| Parathyroid autotransplantation | 0.006b | ||
| Yes | 3 (6%) | 13 (26%) | |
| No | 47 (94%) | 37 (74%) | |
| Postoperative RAI therapy | 0.405b | ||
| Yes | 16 (32%) | 20 (40%) | |
| No | 34 (68%) | 30 (60%) | |
| Transient hypoparathyroidism | 0.423b | ||
| Yes | 24 (48%) | 28 (56%) | |
| No | 26 (52%) | 22 (44%) | |
| Transient hypocalcemia | 0.629b | ||
| Yes | 10 (20%) | 12 (24%) | |
| No | 40 (80%) | 38 (76%) | |
Footnotes: Values are presented as number (%) or mean ± SD. CN: carbon nanoparticle; RAI: radioactive iodine;
a
t-test;
b
χ 2 test.