Table 4 Chi-square tests for two groups
Variable | LND (n, %) | NLND (n, %) | P value |
|---|---|---|---|
Tumor stage | < 0.001 | ||
≤T1 | 1210 (31.3) | 1684 (46.2) | |
T2 | 722 (18.7) | 637 (17.5) | |
T3 | 1204 (31.2) | 990 (27.2) | |
T4 | 726 (18.8) | 335 (9.2) | |
Tumor grade | < 0.001 | ||
Low grade or ≤ G2 | 1610 (35.4) | 1281 (43.2) | |
High grade or > G2 | 2936 (64.6) | 1682 (56.8) |