Skip to main content
. 2020 Sep 16;9(10):999–1008. doi: 10.1530/EC-20-0420

Table 3.

Univariate analysis of the factors associated with BRAF V600E in primary tumors and LNM.

Characteristics BRAF V600E in primary tumors BRAF V600E in LNM
WT (n = 66) Mutation (n = 300) P WT (n = 79) Mutation (n = 287) P
Age at diagnosis (years)
 <55 59 (18.3) 264 (81.7) 0.117 67 (20.7) 256 (79.3) 0.283
 ≥55 7 (16.3) 36 (83.7) 12 (27.9) 31 (72.1)
Sex
 Female 44 (18.6) 192 (81.4) 0.682 53 (22.5) 183 (77.5) 0.584
 Male 22 (16.9) 108 (83.1) 26 (20.0) 104 (80.0)
Family history
 No 65 (18.5) 287 (81.5) 0.480 78 (22.2) 274 (77.8) 0.318
 Yes 1 (7.1) 13 (92.9) 1 (7.1) 13 (92.9)
Histologic variants (PTC)
 Classic 60 (16.9) 295 (83.1) 71 (20.0) 284 (80.0)
 Follicular 1 (25.0) 3 (75.0) 0.007 2 (50.0) 2 (50.0) 0.000
 Other variants 5 (71.4) 2 (28.6) 6 (85.7) 1 (14.3)
Tumor size (cm)
 <2 44 (15.6) 238 (84.4) 0.018 55 (19.5) 227 (80.5) 0.139
 ≥2 21 (27.3) 56 (72.7) 21 (27.3) 56 (72.7)
Multifocality
 Unifocal 41 (23.2) 136 (76.8) 0.012 43 (24.3) 134 (75.7) 0.106
 Multifocal 24 (13.0) 160 (87.0) 32 (17.4) 152 (82.6)
Lesion location
 Unilateral 40 (21.6) 145 (78.4) 0.071 49 (26.5) 136 (73.5) 0.021
 Bilaterality 26 (14.4) 155 (85.6) 30 (16.6) 151 (83.4)
Extrathyroidal extension
 No 44 (18.2) 198 (81.8) 50 (20.7) 192 (79.3)
 Minimal 14 (14.4) 83 (85.6) 0.191 18 (18.6) 79 (81.4) 0.039
 Gross 8 (29.6) 19 (70.4) 11 (40.7) 16 (59.3)
Capsular invasion
 No 30 (18.2) 135 (81.8) 0.964 33 (20.0) 132 (80.0) 0.489
 Yes 36 (18.0) 164 (82.0) 46 (23.0) 154 (77.0)
N stage
 N1a 31 (16.8) 154 (83.2) 0.521 36 (19.5) 149 (80.5) 0.318
 N1b 35 (19.3) 146 (80.7) 43 (23.8) 138 (76.2)
Number of LNM
 ≤5 28 (13.5) 179 (86.5) 0.009 37 (17.9) 170 (82.1) 0.042
 >5 38 (24.2) 119 (75.8) 42 (26.8) 115 (73.2)
Size of the largest metastatic focus to LNM (cm)
 <0.65 25 (11.0) 202 (89.0) 0.000 31 (13.7) 196 (86.3) 0.000
 ≥0.65 40 (30.5) 91 (69.5) 46 (35.1) 85 (64.9)
Extranodal extension
 No 38 (15.8) 203 (84.2) 0.118 48 (19.9) 193 (80.1) 0.282
 Yes 28 (22.4) 97 (77.6) 31 (24.8) 94 (75.2)
Cumulative iodine dose (MBq)
 0 7 (12.5) 49 (87.5) 14 (25.0) 42 (75.0)
 ≤5550 39 (18.4) 173 (81.6) 0.460 40 (18.9) 172 (81.1) 0.332
 >5550 20 (20.4) 78 (79.6) 25 (25.5) 73 (74.5)
Distant metastasis
 No 59 (16.6) 296 (83.4) 0.000 71 (20.0) 284 (80.0) 0.000
 Yes 7 (63.6) 4 (36.4) 8 (72.7) 3 (27.3)
Response to therapy
 Excellent response 26 (13.9) 161 (86.1) 0.394 34 (18.2) 153 (81.8) 0.106
 Not cureda 40 (22.3) 139 (77.7) 45 (25.1) 134 (74.9)

aNot cured include Indeterminate, Biochemical and Structural incomplete response.

PTC, papillary thyroid cancer; LNM, lymph node metastasis; WT, wild type.