Table 2.
The clinical outcomes between the clockwise modularized laparoscopic group and open gastrectomy group
| Characteristics | Before Matching (N = 551) | After Matching (N = 212) | |||||
|---|---|---|---|---|---|---|---|
| CML Group | OG Group | P value | CML Group | OG Group | P value | ||
| N = 109 | N = 442 | N = 106 | N = 106 | ||||
| Operation Time | Min | 260 (220–305) | 235 (210–260) | < 0.001 | 262.5 (220–303.25) | 232 (205–255) | < 0.001 |
| Blood Loss | ml | 30 (20–80) | 80 (50–100) | < 0.001 | 30 (20–80) | 80 (50–100) | < 0.001 |
| Metastasis Lymph nodes (total) | Numbers | 1 (0–3) | 2 (0–7) | 0.002 | 1 (0–3) | 0 (0–3.75) | 0.956 |
| Examined Lymph nodes (total) | Numbers | 36 (28–45) | 29 (22–37.75) | < 0.001 | 36 (28–44.75) | 29 (23–39.5) | 0.002 |
| Metastasis Lymph nodes (No.7) | Numbers | 0 (0–0) | 0 (0–0) | 0.034 | 0 (0–0) | 0 (0–0) | 0.804 |
| Metastasis Lymph nodes (No.8a) | Numbers | 0 (0–0) | 0 (0–0) | 0.038 | 0 (0–0) | 0 (0–0) | 0.251 |
| Metastasis Lymph nodes (No.9) | Numbers | 0 (0–0) | 0 (0–0) | < 0.001 | 0 (0–0) | 0 (0–0) | 0.110 |
| Metastasis Lymph nodes (No.11p) | Numbers | 0 (0–0) | 0 (0–0) | 0.048 | 0 (0–0) | 0 (0–0) | 0.556 |
| Metastasis Lymph nodes (No.12a) | Numbers | 0 (0–0) | 0 (0–0) | 0.011 | 0 (0–0) | 0 (0–0) | 0.243 |
| Examined Lymph nodes (No.7) | Numbers | 3 (1–4) | 3 (2–5) | 0.154 | 3 (1–4) | 3 (1.25–4) | 0.632 |
| Examined Lymph nodes (No.8a) | Numbers | 2 (1–3) | 1 (1–2) | 0.028 | 2 (1–3) | 1 (1–2) | 0.080 |
| Examined Lymph nodes (No.9) | Numbers | 3 (1.5–5) | 2 (1–3) | < 0.001 | 2 (1–5) | 2 (1–3) | 0.007 |
| Examined Lymph nodes (No.11p) | Numbers | 1 (1–3) | 1 (1–3) | 0.529 | 1 (1–3) | 2 (1–3) | 0.215 |
| Examined Lymph nodes (No.12a) | Numbers | 1 (0–1.5) | 1 (1–1) | 0.516 | 1 (0–2) | 1 (1–1) | 0.844 |
CML clockwise modularized laparoscopic lymphadenectomy; OG open gastrectomy