Table 2.

Data from eight peer-reviewed studies describing the effect of the TWR on their colorectal services.

First author & Reference	N° TWR referrals received	(i) % of CRCs identified from TWR referrals (n)	Total number of CRC cases diagnosed †	Total % of CRC cases referred as...
				TWR	Emergency	Other
Chohan [6]	462	13.8% (64)	195	32.8%	20%	47.2%
Maruthachalam [7]	639	8% (51)	234	21.8%	10.6%	67.6%
Eccersley [8]	180	14.4% (26)	145	18%	17%	66%
Walsh [9]	78	10.3% (8)	23	47.8%	52.2%
Debnath [10]	237	8.9% (21)	96	21.9%	78.1%
Flashman [11]	695	9.4% (65)	249	26.1%	35.3%	38.6%
Barwick [12]	149	10% (14)	84	16.7%	41.7%	41.7%
Tricket [13]	NA	NA	147	20%	29%	51%
Weighted averages of all values combined		10.3%		24%	24.1%	52.4%

Key: NA = Data not available in article; † = Total number of CRC cases diagnosed during the time of the study in the same locality.