Table 3 Risk factors for lymph node metastasis in deveriation cohort
From: A nomogram to predict lymph node metastasis risk for early esophageal squamous cell carcinoma
Variables | LNM | P value | Logistic regression analysis | P value | ||
|---|---|---|---|---|---|---|
Negative (%) Positive (%) | OR | 95%CI | ||||
Sex | 0.411 | – | – | – | ||
Male | 156 (82.5) | 33 (17.5) | ||||
Female | 30 (88.2) | 4 (11.8) | ||||
Age | 0.418 | – | – | – | ||
< 60 years | 92 (81.4) | 21 (18.6) | ||||
> = 60 years | 94 (85.5) | 16 (14.5) | ||||
Tumor location | 0.475 | – | – | – | ||
Upper | 12 (92.3) | 1 (7.7) | ||||
Middle | 96 (85.7) | 16 (14.3) | ||||
Lower | 77 (80.2) | 19 (19.8) | ||||
Tumor number | 0.075 | – | – | – | ||
Single | 170 (85.0) | 30 (15.0) | ||||
Mutifocal | 16 (72.7) | 6 (27.3) | ||||
Tumor size | 0.029 | 2.420 | 1.070–5.473 | 0.034 | ||
< 2.5 cm | 121 (87.7) | 17 (12.3) | ||||
> = 2.5 cm | 65 (76.5) | 20 (23.5) | ||||
Differentiation | 0.001 | 3.766 | 1.515–9.360 | 0.004 | ||
High-middle | 164 (87.2) | 24 (12.8) | ||||
Low | 22 (62.9) | 13 (37.1) | ||||
Depth of invasion | 0.005 | 3.124 | 1.146–8.511 | 0.026 | ||
T1a | 76 (92.7) | 6 (7.3) | ||||
T1b | 111 (78.7) | 30 (21.3) | ||||
Lymphovascular invasion | 0.001 | – | – | – | ||
Not reported | 178 (86.0) | 29 (14.0) | ||||
Reported | 8 (50.0) | 8 (50.0) | ||||