Evaluating the Cost-Effective Use of Follow-Up Colonoscopy Based on Screening Findings and Age

Figure 6

Effectiveness vs surveillance intervals (ΔQALY) at age 50 with (a) no neoplasia, (b) 1 to 2 small polyps only, (c) 3 plus small polyps only, (d) 1 to 2 advanced polyps only, and (e) 3 plus advanced polyps only. The three points that were used for the interpolation are highlighted in the boxes. The maximum falls somewhere between 6 and 10 years.

(a)

(b)

(c)

(d)

(e)