Table 2.

Comparison of Colonoscopy Metrics Over Time By Indication

AVERAGE RISK SCREENING
Outcome	2000–2004	2005–2009	2010–2014
Good/excellent bowel preparation	1.0 (reference)	1.01 (.99–1.04)	1.64 (1.60 – 1.68)
Polyp Finding	1.0 (reference)	1.12 (1.10 – 1.14)	1.33 (1.30 – 1.35)
2 or more polyp finding	1.0 (reference)	1.08 (1.05 – 1.10)	1.41 (1.38 – 1.45)
Polyp finding > 9mm	1.0 (reference)	1.09 (1.05 – 1.13)	1.25 (1.21 – 1.30)
INCREASED RISK SCREENING
Outcome	2000–2004	2005–2009	2010–2014
Good/excellent bowel preparation	1.0 (reference)	1.06 (1.03 – 1.09)	1.62 (1.57 – 1.68)
Polyp Finding	1.0 (reference)	0.83 (0.81 – 0.85)	0.97 (0.95 – 1.00)
2 or more polyp finding	1.0 (reference)	0.75 (0.73 – 0.77)	0.95 (0.92 – 0.98)
Polyp finding > 9mm	1.0 (reference)	0.73 (0.70 – 0.75)	0.88 (0.85 – 0.92)
SURVEILLANCE
Outcome	2000–2004	2005–2009	2010–2014
Good/excellent bowel preparation	1.0 (reference)	1.09 (1.07 – 1.12)	1.69 (1.65 – 1.74)
Polyp Finding	1.0 (reference)	1.05 (1.03 – 1.07)	1.28 (1.26 – 1.31)
2 or more polyp finding	1.0 (reference)	1.01 (0.98 – 1.03)	1.34 (1.31 – 1.37)
Polyp finding > 9mm	1.0 (reference)	0.96 (0.93 – 0.99)	1.06 (1.02 – 1.10)
IBD EXAMS
Outcome	2000–2004	2005–2009	2010–2014
Good/excellent bowel preparation	1.0 (reference)	0.94 (0.88 – 1.00)	1.34 (1.25 – 1.45)
Polyp Finding	1.0 (reference)	1.16 (1.10 – 1.23)	1.05 (0.98 – 1.12)
2 or more polyp finding	1.0 (reference)	1.19 (1.09 – 1.31)	1.03 (0.92 – 1.15)
Polyp finding > 9mm	1.0 (reference)	0.99 (0.88 – 1.12)	0.77 (0.67 – 0.89)
DIAGNOSTIC
Outcome	2000–2004	2005–2009	2010–2014
Good/excellent bowel preparation	1.0 (reference)	0.95 (0.94 – 0.97)	1.43 (1.40 – 1.45)
Polyp Finding	1.0 (reference)	1.04 (1.03 – 1.06)	1.24 (1.22 – 1.26)
2 or more polyp finding	1.0 (reference)	1.00 (0.98 – 1.02)	1.29 (1.27 – 1.32)
Polyp finding > 9mm	1.0 (reference)	0.92 (0.90 – 0.94)	1.08 (1.05 – 1.11)

^*models are controlled for gender, age and race/ethnicity