Table 1

Patients included in the analysis of sensitivity and specificity (sex distribution and age)

	Negative colonoscopy	Polyps without neoplasia	Adenomas	Carcinomas
No of patients
Female	231	39	71	12
Male	257	61	132	11
Total	488	100	203	23
Age (y)
Mean	63.1	61.8	65.0	67.2
Range	22–89	34–84	35–83	46–84