Identifying risk factors for recurrence of papillary thyroid cancer in patients who underwent modified radical neck dissection

Table 3 Comparison of MRND type and clinicopathologic characteristics

Variables	Ipsilateral MRND	Bilateral MRND	p
Variables	N = 346	N = 44	p
Age	46.2 ± 13.3	48.1 ± 15.6	0.369
≤ 55 years	255 (73.7)	30 (68.2)	0.471
> 55 years	91 (26.3)	14 (31.8)
Sex			< 0.001
Female	252 (72.8)	20 (45.5)
Male	94 (27.2)	24 (54.5)
Main tumor size (cm)	1.54 ± 0.91	2.20 ± 1.21	< 0.001
≤ 2 cm	272 (78.6)	25 (56.8)	0.002
> 2 cm	74 (21.4)	19 (43.2)
Number of central lymph node
Harvested	7.2 ± 5.9	8.4 ± 6.2	0.210
Metastatic	3.4 ± 3.5	6.3 ± 6.0	< 0.001
Number of lateral lymph node			< 0.001
Harvested	16.6 ± 8.1	33.6 ± 13.3	< 0.001
Metastatic	4.2 ± 2.9	10.5 ± 5.5
Skip metastases	80 (23.1)	6 (13.6)	0.179
LN ratio	0.34 ± 0.19	0.41 ± 0.21	0.012
Multifocality	114 (32.9)	28 (63.6)	< 0.001
Bilaterality	101 (29.2)	24 (54.5)	0.001
ETE			0.003
No/minor	252 (72.8)	22 (50.0)
Gross	94 (27.2)	22 (50.0)
CLT	92 (26.6)	8 (18.2)	0.274
LVI	16 (4.6)	4 (9.1)	0.263
Stage			0.406
I	255 (73.7)	30 (68.2)
II	70 (20.2)	9 (20.5)
III	21 (6.1)	5 (11.4)
Recurrence	67 (19.4)	17 (38.6)	0.006

MRND modified lateral neck dissection, LN lymph node, ETE extrathyroidal extension, CLT chronic lymphocytic thyroiditis, LVI lymphovascular invasion

ISSN: 1477-7819