Operative characteristics for the included patients, based on transfusion status
| Variable | Group; no. (%) or mean (IQR) | p value | |
|---|---|---|---|
| Transfused | Nontransfused | ||
| Operative duration, min | 253 (180–305) | 223 (150–274) | < 0.001 |
| Operative year | 0.09 | ||
| 2007 | 89 (16.6) | 369 (15.7) | |
| 2008 | 90 (16.8) | 415 (17.7) | |
| 2009 | 109 (20.4) | 446 (19.0) | |
| 2010 | 81 (15.4) | 470 (20.0) | |
| 2011 | 92 (17.2) | 328 (14.0) | |
| 2012 | 74 (13.8) | 321 (13.7) | |
| Procedure | < 0.001 | ||
| Total gastrectomy | 243 (45.4) | 841 (35.8) | |
| Subtotal gastrectomy | 292 (54.6) | 1508 (64.2) | |
| Multivisceral resection | 84 (15.7) | 205 (8.7) | < 0.001 |
| Colectomy | 25 (4.7) | 37 (1.6) | |
| Pancreatectomy | 28 (5.2) | 32 (1.4) | |
| Enterectomy | 14 (2.6) | 41 (1.8) | |
| Hepatectomy | 28 (5.2) | 96 (4.1) | |
| Esophagectomy | 7 (1.3) | 16 (0.7) | |
| Splenectomy | 29 (5.4) | 40 (1.7) | |
IQR = interquartile range.