Table 1. Major characteristics of studies’ population.
| Author [year] | Patients | Age | Females | BMI | ASA I | ASA II | ASA III | ASA IV | Neoadjuvant chemoradiotherapy chemoradiotherapy | Stage I | Stage II | Stage III | Stage IV |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Breukink [2004] | 50 | 68.5 | 36 | - | - | - | - | - | 61.55 | ||||
| Cheung [2017] | 334 | - | - | - | - | - | - | - | - | - | - | - | - |
| de’ Angelis [2016] | 104 | 70.75 | 43.88 | 24.88 | - | - | - | - | 61.55 | 0 | 19.2 | 52.9 | 27.9 |
| Ferko [2014] | 125 | 65.98 | 27.91 | 27.64 | - | - | - | - | 56.02 | 35.22 | 23.22 | 25.59 | 16.02 |
| Fleshman [2015] | 462 | 57.46 | 36.15 | 26.59 | - | - | - | - | 96.10 | 1.08 | 41.34 | 61.69 | 0 |
| Kang [2010] | 340 | 58.45 | 35.3 | 24.1 | 39.41 | 57.06 | 3.53 | 0 | - | - | - | - | - |
| Keskin [2016] | 587 | 57.82 | 61.61 | 26.07 | 23.53 | 47.73 | 19.55 | 9.18 | 63.01 | - | - | - | - |
| Ng [2014] | 80 | 61.15 | 42.5 | 22.75 | - | - | - | - | - | 13.75 | 32.5 | 43.75 | 10 |
| Perdawood [2017] | 200 | 67.53 | 29.5 | 26.09 | 32.5 | 51 | 16.5 | 0 | 24 | - | - | - | - |
| Ramji [2015] | 53 | 66.3 | 20.85 | 27.75 | 7.64 | 32.02 | 58.3 | 2.04 | 23.51 | - | - | - | - |
| Stevenson [2015] | 473 | 65 | 34.25 | 26.5 | - | - | - | - | - | - | - | - | - |
| Van der Pas [2013] | 997 | 64.47 | 38.62 | 26.23 | 22.17 | 59.88 | 19.26 | 0.60 | - | 33.9 | 27.18 | 35.91 | 0 |
Surgical resection for rectal cancer. Is laparoscopic surgery as successful as open approach? A systematic review with meta-analysis of randomized clinical trials.