Table 1. Clinical characteristics of enrolled patients.
| Variable | All Patients (n = 422) |
LND (n = 73) |
non-LND (n = 349) |
p | |||
|---|---|---|---|---|---|---|---|
| NO. | % | NO. | % | NO. | % | ||
| Age, years | 0.12 | ||||||
| Median | 60 | 61 | 59 | ||||
| Range | 27-80 | 40-74 | 27-80 | ||||
| Sex | 0.15 | ||||||
| Male | 177 | 41.9 | 37 | 50.7 | 140 | 40.1 | |
| Female | 245 | 58.1 | 36 | 49.3 | 209 | 59.9 | |
| Tumor number | 0.24 | ||||||
| Solitary | 337 | 79.8 | 62 | 84.9 | 275 | 78.8 | |
| Multiple | 85 | 20.2 | 11 | 15.1 | 74 | 21.2 | |
| Tumor size, cm | 0.13 | ||||||
| Median | 5.3 | 6.0 | 5.0 | ||||
| Range | 0.8-18.0 | 1.5-12.0 | 0.8-18.0 | ||||
| Vessel invasion | 0.91 | ||||||
| Vascular | 14 | 3.3 | 1 | 1.4 | 13 | 3.7 | |
| Biliary | 5 | 1.2 | 1 | 1.4 | 4 | 1.1 | |
| vascular & biliary | 2 | 0.2 | 0 | 0.0 | 2 | 0.6 | |
| Type of liver resection | 0.23 | ||||||
| Hemihepatectomy | 307 | 72.7 | 49 | 67.1 | 258 | 73.9 | |
| Extended hemihepatectomy | 68 | 16.1 | 10 | 13.7 | 58 | 16.6 | |
| Central hepatectomy | 44 | 10.4 | 13 | 17.8 | 31 | 8.9 | |
| Unknown | 3 | 0.7 | 1 | 1.4 | 2 | 0.6 | |
| T stage | 0.70 | ||||||
| T1 | 320 | 75.8 | 59 | 80.8 | 261 | 74.8 | |
| T2 | |||||||
| T2a | 11 | 2.6 | 2 | 2.7 | 9 | 2.6 | |
| T2b | 84 | 19.9 | 11 | 15.1 | 73 | 20.9 | |
| T4 | 7 | 1.7 | 1 | 1.4 | 6 | 1.7 | |
| Adjunctive treatment | 0.32 | ||||||
| Yes | 169 | 40.0 | 33 | 45.2 | 136 | 39.0 | |
| No | 253 | 60.0 | 40 | 54.8 | 213 | 61.0 | |
| Postoperative hospital stay, days | 0.03 | ||||||
| Average | 8.9 | 9.8 | 8.7 | ||||
| Range | 3-37 | 4-35 | 3-37 | ||||
LND, lymph node dissection.