The Prognostic Value of Lymph Nodes Dissection Number on Survival of Patients with Lymph Node-Negative Gastric Cancer

Table 2

Correlation between number of examined lymph nodes and clinical outcomes.

Variables	Overall	Number of examined lymph nodes					𝑋^2(𝐹) value	𝑃 value
		1–15	16–20	21–25	26–30	>30
Hospital stay, day	15.0±6.5	12.0±5.5	13.5±4.8	14.1±6.5	16.1±6.2	15.5±4.8	0.431	0.634
Transfusion volume, ML	207.4±400.4	188.3±200.4	166.0±66.9	120±253.6	213.9±398.7	248±453	0.536	0.571
Operation time, min	266.3±68.5	201.3±56.4	266.3±166.0	274.9±57.5	273.3±72.2	265±72	0.576	0.621
Postop. Complication, 𝑛 (%)
No	288 (96.0%)	72 (97.3%)	51 (96.2%)	43 (95.6%)	34 (94.4%)	88 (95.7%)	3.423	0.228
Yes	12 (4.0%)	2 (2.7%)	2 (3.8%)	2 (4.4%)	2 (5.6%)	4 (4.3%)

Data present as mean ± SD without specific statement. Postop: postoperative; chi-square test was performed to compare differences.