Colonoscopy procedural volume increases adenoma and polyp detection rates in gastroenterologytrainees

Figure 1 Individual and combined change trajectories of adenoma detection rate, polyp detection rate, and advanced adenoma detection rate for 12 fellows throughout their fellowship training. A: ADR per rank; B: PDR; C: Advanced ADR. The black lines represent individual fellows and the red line represents the mean for the entire group of fellows. The numbers in the bottom right corner of each panel represent the slope (absolute percentage increase in outcome per 100 screening colonoscopies) and its associated P value. Models included the outcome, procedural volume (main exposure), and mean age, percentages of black patients, sex, and inadequate prep as time-varying predictors. ADR: Adenoma detection rate; PDR: Polyp detection rate.

Figure 2 Individual and combined change trajectories colonoscopy metrics. A: Adenoma per colon (APC); B: Polyp per colon (PPC); C: Left-sided Adenoma detection rate (ADR); D: Right-sided ADR; E: Left sided polyp detection rate (PDR); F: Right-sided PDR; G: Left-sided APC; H: Right-sided APC; I: Left-sided PPC; J: Right-sided PPC.

Figure 3 Individual change trajectories of the three main quality metrics for 12 fellows throughout their fellowship training. A: ADR; B: PDR; C: Advanced ADR. The numbers in the top right corner of each panel represent the slope (absolute percentage increase in outcome per 100 screening colonoscopies). The ^a represents statistically significant (P < 0.05) slopes. Models included the outcome and procedural volume (main exposure). ADR: Adenoma detection rate; PDR: Polyp detection rate.