Table 3 The quality evaluation of lymph node dissection
Variates | Optimized group | Traditional group | p |
|---|---|---|---|
n = 42 | n = 84 | ||
Lymph node metastasis, n (%) | 0.113 | ||
N1 | 39 (92.9) | 76 (90.5) | |
N0 | 3 (7.1) | 8 (9.5) | |
N1 distribution, n (%) | 0.881 | ||
T1A | 13 (33.3) | 19 (25.0) | |
T1B | 11 (28.2) | 25 (32.9) | |
T2 | 9 (23.1) | 17 (22.4) | |
T3 | 4 (10.3) | 11 (14.5) | |
T4 | 2 (5.1) | 4 (5.3) | |
Harvested lymph nodes, median[IQR] | 12.0(10.0–13.0) | 8.0(7.0–9.5) | < 0.001 |
Positive lymph nodes, median[IQR] | 8.0(8.0–10.0) | 5.0(5.0–6.0) | < 0.001 |
Adequate LND, n (%) | 37(88.1) | 65(77.4) | 0.149 |
T1A | 12(32.4) | 17(26.2) | |
T1B | 10(27.0) | 19(29.2) | |
T2 | 9(24.3) | 18(27.7) | |
T3 | 4(10.8) | 9(13.8) | |
T4 | 2(5.4) | 2(3.1) | |
Patient with N1 | |||
Harvested lymph nodes, median[IQR] | 12.0(10.5–13.5) | 8.0(7.0–10.0) | < 0.001 |
Positive lymph nodes, median[IQR] | 9.0(8.0–10.0) | 5.5(5.0–6.0) | < 0.001 |
Adequate LND, n (%) | 35(89.7) | 59(77.6) | 0.111 |
T1A | 10(28.6) | 15(25.4) | |
T1B | 10(28.6) | 16(27.1) | |
T2 | 9(25.7) | 17(28.8) | |
T3 | 4(11.4) | 9(15.3) | |
T4 | 2(5.7) | 2(3.4) | |