Table 4.
Healthcare metrics of the included studies.
| Study | Hospital stay (days ± SD) | In-hospital mortality (n) | Mortality (n) | Operation time (minutes ± SD) | Blood loss (ml ± SD) | Survival (months) | Relapse-free survival (months) |
| Ida et al (2015)22 | 28.1 ± 2.1 vs 33.7 ± 2.4 (P = 0.11) | 0 vs 0 (P = 0.36) | N/A | 612.9 ± 12.9 vs 557.4 ± 14.5 (P = 0.01) | 687.5 ± 176.2 vs 781.5 ± 198.0 (P = 1.00) | N/A | N/A |
| Harada et al (2016)21 | N/A | 0 | N/A | 535 ±11.6 vs 559±16.5 (P = 0.25) | 587 ± 35.0 vs 609 ± 50.0 (P = 0.71) | N/A | N/A |
| Tamandl et al (2016)13 | N/A | N/A | N/A | N/A | N/A | 76.5 vs 31.5 (P = 0.011) | N/A |
| Grotenhuis et al (2016)14 | 14 vs 14 (P = 0.65) | 3 vs 3 (P = 0.8) | N/A | 396 vs 420 (P = 0.3) | N/A | 32 vs 22 (BMI≤25)28 vs 25 (BMI>25)(P = 0.77) | 29 vs 22 (BMI ≤ 25)26 vs 23 (BMI > 25)(P = 0.35) |
| Makiura et al (2016)23 | 28 vs 53 (P < 0.001) | N/A | N/A | 715 vs 711 (P = 0.5) | 5.6 vs 10.9 (P < 0.001) | N/A | N/A |
| Nishigori et al (2016)25 | N/A | 1 vs 1 | N/A | N/A | N/A | N/A | Not reached vs 15.8 (P = 0.068) |
| Paireder et al (2016)26 | N/A | N/A | N/A | N/A | N/A | 52.1 vs 20.5(P = 0.036) | N/A |
| Nakashima et al (2018)24 | N/A | 3 vs 5 | 1 vs 0 | N/A | N/A | < 65 years: 55.6% vs 44.9% (5-year) (P = 0.1136)≥ 65: 56% vs 26.5% (5-year) (P < 0.0001) | N/A |