Table 3. Screening: Asymptomatic, Average-Risk Population,
High-Incidence Areas, Age 50 –75
Method
Basic Limited Enhanced Maximal Rec Number
Flexible
Sigmoidoscopy
N/A People should receive Flexible Sigmoidoscopy every
5 years.
OR 1.3
(Strong
Recommendation;
H)
Flexible
Sigmoidoscopy
plus (FIT or
FOBT)
N/A People may receive Flexible Sigmoidoscopy every 10
yrs plus FIT (or if FIT not available, then FOBT)
every year.
OR 1.4
(Strong
Recommendation;
I)
Colonoscopy N/A N/A People may receive colonoscopy
every 10 years.
OR 1.5
(Weak
Recommendation;
L)
CT colonography N/A N/A N/A People may
receive CT
colonography.
OR 1.6
(Weak
Recommendation;
L)
FIT-DNA N/A N/A N/A People may
receive FIT-
DNA.
OR 1.7
(Weak
Recommendation;
L)
(cont'd)
