Research Article

Clinical Implications of Age in Differentiated Thyroid Cancer: Comparison of Clinical Outcomes between Children and Young Adults

Table 4

Subanalysis of clinicopathological characteristics in pediatric subgroups.

≤16 years (n = 37)17–19 years (n = 61) value

Age (years)13.9 ± 3.118.4 ± 0.8<0.001
Male : female1 : 4.31 : 14.3<0.001
 Male7 (18.9%)4 (6.6%)
 Female30 (81.1%)57 (93.4%)
Tumor size (cm)2.3 ± 1.01.9 ± 1.50.205
Type of carcinoma0.184
 PTC36 (97.3%)55 (90.2%)
 FTC1 (2.7%)6 (9.8%)
Multifocality10 (27.0%)14 (23.0%)0.809
Bilaterality8 (21.6%)7 (11.5%)0.247
 ETE19 (51.4%)17 (27.9%)0.007
 T stage0.012
 T110 (27.0%)34 (55.7%)
 T28 (21.6%)9 (14.8%)
 T316 (43.2%)17 (27.9%)
 T43 (8.1%)1 (1.6%)
N stage<0.001
 N07 (18.9%)18 (29.5%)
 N1a10 (27.0%)33 (54.1%)
 N1b20 (54.1%)10 (16.4%)
M stage0.718
 M11 (2.7%)1 (1.6%)
Recurrence6 (16.2%)8 (13.1%)0.564

Data are expressed as patient’s number (%) or mean ± SD. A statistically significant difference was defined as . PTC, papillary thyroid carcinoma; FTC, follicular thyroid carcinoma; ETE, extrathyroidal extension; T, tumor; N, node; M, metastasis.