Table 1.
Clinical characteristics of included studies
| Study (first author) | Year | Country | Cancer patients | Non-cancer patients | Benign/Malignant | Location | ||
|---|---|---|---|---|---|---|---|---|
|
| ||||||||
| Age | M/F | Age | M/F | |||||
| Hosonuma | 2006 | Japan | 64.2/31-81 | 11/4 | 64.9/51-81 | 14/4 | 20/15 | CR |
| Soyer | 2010 | France | 69/43-84 | 14/17 | 65/30-81 | 14/17 | 31/31 | R |
| Ichikawa | 2006 | Japan | 59/33-69 | 18/15 | - | - | 33/15 | CR |
| Rao | 2008 | China | 60.9/21-86 | 23/22 | - | - | 20/45 | R |
| Colosio | 2013 | France | 64/- | 17/10 | 69/- | 14/8 | 22/27 | CR |
| Lambregts | 2010 | Netherlands | 68/35-87 | 13/6 | 64/22-81 | 13/10 | 23/19 | R |
| Kilickesmez | 2009 | Turkey | 57/- | - | 45/-- | - | 39/14 | CR |
| Nural | 2013 | Turkey | 63/30-81 | 12/5 | 61/46-69 | 10/3 | 13/17 | CR |
| Solak | 2013 | Turkey | 57/31-77 | 32/0 | - | - | 15/26 | CR |
| Avcu | 2014 | Turkey | - | - | - | - | 31/27 | C |
M: male, F: female; CR: colorectal R: rectal C: colonic.