Nomogram based on multimodal magnetic resonance combined with B7-H3mRNA for preoperative lymph node prediction in esophagus cancer

Table 1 Characteristics of patients in the cohort, n (%)

Characteristic	LN metastasis (+)	LN metastasis (-)	P value
Age, mean ± SD	70.18 ± 6.75	71.92 ± 7.49	0.39
Tumor size, mean ± SD	3.89 ± 1.55	3.18 ± 1.64	0.24
Sex			0.54
Male	10 (66.67)	13 (76.47)
Female	5 (33.33)	4 (23.53)
CEA			0.99
0-5 ng/mL	15 (99.99)	16 (94.12)
> 5 ng/mL	0 (0.01)	1 (5.88)
Squamous cell carcinoma antigen			0.61
0-2.7 ng/mL	12 (80.0)	14 (82.35)
> 2.7 ng/mL	3 (20.00)	3 (17.65)
Location			0.99
Upper mediastinal	2 (13.33)	1 (5.88)
Middle mediastinal	6 (40.00)	8 (47.06)
Lower mediastinal	6 (40.00)	8 (47.06)
Abdominal	1 (6.67)	0 (0.01)
Histologic grade			0.40
Well differentiated	0 (0.01)	2 (11.77)
Moderately differentiated	11 (73.33)	11 (64.71)
Poorly differentiated	4 (26.67)	4 (23.53)
T stage			0.01
1	3 (20.00)	10 (58.82)
2	12 (80.00)	5 (29.41)
3	0 (0.01)	2 (11.77)
CT-reported LN status			0.16
0-10.0 mm	6 (40.00)	11 (64.71)
> 10.0 mm	9 (60.00)	6 (35.29)

LN: Lymph node; T: Tumor; CEA: Carcinoembryonic antigen; CT: Computed tomography.