Table 1.

Hellenic PCPhs' recommendations of colorectal tests for cancer screening activities:

Screening tests	twice a year %	yearly %	every 2 years %	every 3 years %	every 5 years %	Useful undefined frequency %	Not useful %
SIG	0	6	3	6	7	1	77
SOBT	3	35	6	1	1	1	52
DRE	6	55	4	1	1	1	32

Abbreviations used:

PCPhs primary care physicians

SIG sigmoidoscopy

SOBT stool occult blood test

DRE digital rectal examination

% percentage