Table 1 Risk factors for lymph node metastases
Risk factors | Variable | Patients | Node positive (%) | P (χ2 test) |
|---|---|---|---|---|
Age (years) | < 50 | 187 | 32 (17.11) | 0.227 |
≥ 50 | 102 | 12 (11.76) | ||
BMI (kg/m2) | ≥ 25 | 52 | 1 (1.92) | 0.025 |
< 25 | 225 | 37 (16.44) | ||
Unknown | 12 | |||
Menopausal | Premenopause | 192 | 31 (16.15) | 0.610 |
Postmenopause | 94 | 13 (13.83) | ||
Tumor size | < 2 cm | 87 | 3 (3.45) | < 0.001 |
≥ 2 cm | 197 | 40 (20.30) | ||
Pathologic type | Squamous cell cancer | 216 | 36 (16.67) | 0.241 |
Others | 73 | 8 (10.96) | ||
Histologic grading | < G2 | 31 | 2 (6.45) | 0.229 |
≥ G2 | 254 | 42 (16.54) | ||
< G3 | 202 | 28 (13.86) | 0.250 | |
≥ G3 | 83 | 16 (19.28) | ||
Parametrium invasion | Absent | 265 | 32 (12.08) | < 0.001 |
Present | 24 (8.3%) | 12 (50.00) | ||
Stromal invasion | Inner one-third | 126 | 11 (8.73) | 0.012 |
Middle one-third | 72 | 14 (19.44) | ||
Outer one-third | 82 | 19 (23.17) | ||
Stromal invasion | Inner two-third | 209 | 25 (11.96) | 0.018 |
Outer one-third | 82 | 19 (23.17) | ||
Lymphovascular space involvement (LVSI) | Absent | 192 | 17 (8.85) | < 0.001 |
Present | 97 (33.6) | 27 (27.84) | ||
Removed lymph nodes | < 30 | 144 | 24 (16.67) | 0.497 |
≥ 30 | 145 | 20 (13.79) |