Table 4

Cohort characteristics with regard to baseline demographics of the patients studied.
Lead Author	% Males	Mean or median age	BMI (kg/m²)	Non-colonic cancers included	% with colon cancer	No with colon cancer

Saha	46	71	ns	Rectum	86	74
Wiese	44	71	ns	Rectum	70	70
Waters	ns	ns	ns	None	100	22
Bilchik	43	70	ns	Rectum	83	33
Paramo	46	72	ns	None	100	35
Wood	40	68	ns	Rectum	81	61
Wood	36	64	ns	None	100	11
Saha	ns	ns	ns	Rectum	ns	ns
Esser	55	69	ns	Rectum	84	26
Bendavid	ns	ns	ns	None	100	20
Paramo	51	70	ns	None	100	55
Wood	49	68	ns	Rectum	78	78
Bilchik	49	68	ns	Rectum	100	100
Kitagawa	71	61	ns	Rectum	21	12
Feig	73	68	ns	None	100	48
Broderick-Villa	50	63	ns	Rectum	90	40
Tsioulias	ns	ns	ns	None	100	14
Nastro	ns	ns	ns	None	100	8
Bilchik	12	64	ns	None	100	30
Cox	35	Ns	ns	None	100	17
Bilchik	48	70	ns	Rectum	85	102
Turner	53	76	ns	Rectum	86	44
Trocha	56	71	ns	Rectum	88	44
Veihl	74	75	25.3	None	100	31
Levine	55	67	ns	Stomach	74	37
Saha	48	71	ns	Rectum	83	336
Dan	49	72	ns	Rectum	88	106
Braat	ns	ns	ns	None	100	35
Bertoglio	54	ns	ns	Rectum	77	20
Read	ns	ns	ns	None	100	41
Patten	ns	64.2	ns	None	100	50
Bertagnolli	65	65	ns	None	100	72
Saha	47	71	ns	Rectum	91	52
Saha	48	71.3	ns	Rectum	80	209
Bembenek	49	45 to 83	ns	None	100	55
Codnignola	36	70.8	ns	Rectum	93	52
Dahl	57	70	ns	None	100	30
Bilchik	47	74	ns	Rectum	73	97
Tuech	ns	75.5	ns	None	100	30
Saha	48	74	ns	Rectum	82	408
Kelder	53	69	ns	None	100	30
Thomas	50	67	c. 26.3	None	100	69
Covarelli	60	70	ns	None	100	20
Kelder	ns	ns	ns	None	100	69
Bianchi	58	61	ns	None	100	22
Murawa	ns	61	ns	Rectum	48	13
Bembenek	59	67	ns	None	100	315
Sandrucci	ns	73	ns	Rectum	86	30
Tiffet	50	73	25	Rectum	75	49
Lim	48	67	ns	None	100	120
Kusano	70	70	ns	None	100	26
Quadros	36.5	56	ns	Rectum	42	22

The order and format is the same as in Table 3.
Cahill et al. BMC Surgery 2008 8:17 doi:10.1186/1471-2482-8-17