Table 3.
Univariate analysis of risk factors for postoperative complications in NE and E groups
| Group NE (< 70 years) | % | p value | Group E (≥ 70 years) | % | p value | ||
|---|---|---|---|---|---|---|---|
| Sex | Male | 30/150 | 20.8 | 0.879 | 30/111 | 27.0 | 0.999 |
| Female | 25/117 | 21.4 | 21/79 | 26.6 | |||
| BMI | < 30 | 30/130 | 23.1 | 0.999 | 9/30 | 30.0 | 0.814 |
| ≥ 30 | 11/47 | 23.4 | 24/91 | 26.4 | |||
| ASA score | 1–2 | 33/177 | 18.6 | 0.144 | 11/71 | 15.5 | 0.006 |
| 3–4 | 22/82 | 26.8 | 39/113 | 34.5 | |||
| Gastrectomy | Total | 22/83 | 26.5 | 0.141 | 19/47 | 40.4 | 0.022 |
| Subtotal | 33/184 | 17.9 | 32/143 | 22.4 | |||
| Tumor localization (third) | Upper 1/3 | 15/51 | 29.4 | 0.077 | 11/26 | 42.3 | 0.157 |
| Middle 1/3 | 24/119 | 20.2 | 19/80 | 23.8 | |||
| Lower 1/3 | 16/97 | 16.5 | 21/84 | 25.0 | |||
| Multivisceral surgery | Yes | 2/19 | 10.5 | 0.381 | 8/15 | 53.3 | 0.031 |
| No | 53/241 | 22.0 | 42/168 | 25.0 | |||
| Lympha-nodectomy | D1 | 5/13 | 38.5 | 0.157 | 5/18 | 27.8 | 0.999 |
| D2 | 50/246 | 20.3 | 46/165 | 27.9 | |||
| Retrieved lymph nodes (LN) | ≤ 15 LN | 16/52 | 30.8 | 0.058 | 17/61 | 27.9 | 0.860 |
| > 15 LN | 39/211 | 18.5 | 33/127 | 26.0 |