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. Author manuscript; available in PMC: 2018 Mar 1.
Published in final edited form as: Gastrointest Endosc. 2016 Oct 1;85(3):601–610.e2. doi: 10.1016/j.gie.2016.09.033

Table 5.

Association between measures of endoscopist fatigue and colonoscopic adenoma detection.

Fatigue measures Screening exams
n=46,297
OR (95% CI)
Surveillance exams
n=30,148
OR (95% CI)
All exams*
n=76,445
OR (95% CI)
Start time:
 Morning Exam 1.00 (referent) 1.00 (referent) 1.00 (referent)
 Afternoon Exam 0.97 (0.93 – 1.02) 1.02 (0.97 – 1.08) 0.99 (0.96 – 1.03)
Raw fatigue score
 First of the day 1.00 (referent) 1.00 (referent) 1.00 (referent)
 Quartile 1 1.09 (1.02 – 1.16) 0.97 (0.90 – 1.04) 1.03 (0.99 – 1.09)
 Quartile 2 1.10 (1.02 – 1.19) 1.05 (0.96 – 1.14) 1.08 (1.02 – 1.14)
 Quartile 3 1.06 (0.99 – 1.14) 1.05 (0.97 – 1.14) 1.05 (1.00 – 1.11)
 Quartile 4 0.99 (0.92 – 1.06) 1.00 (0.92 – 1.08) 0.99 (0.94 – 1.04)
Consensus fatigue score
 First of the day 1.00 (referent) 1.00 (referent) 1.00 (referent)
 Quartile 1 1.08 (1.00 – 1.15) 0.98 (0.91 – 1.06) 1.03 (0.98 – 1.09)
 Quartile 2 1.12 (1.05 – 1.20) 1.01 (0.94 – 1.09) 1.07 (1.02 – 1.12)
 Quartile 3 1.04 (0.97 – 1.12) 1.03 (0.95 – 1.12) 1.04 (0.98 – 1.10)
 Quartile 4 0.99 (0.93 – 1.07) 1.02 (0.94 – 1.10) 1.00 (0.95 – 1.05)
RVU fatigue score
 First of the day 1.00 (referent) 1.00 (referent) 1.00 (referent)
 Quartile 1 1.10 (1.03 – 1.18) 0.99 (0.91 – 1.07) 1.05 (1.00 – 1.11)
 Quartile 2 1.09 (1.02 – 1.17) 0.99 (0.92 – 1.07) 1.04 (0.99 – 1.10)
 Quartile 3 1.06 (0.99 – 1.14) 1.02 (0.94 – 1.10) 1.04 (0.99 – 1.09)
 Quartile 4 1.00 (0.93 – 1.07) 1.04 (0.96 – 1.13) 1.01 (0.96 – 1.06)
*

Screening and surveillance examinations combined.

The colonoscopy that was the first GI procedure of the day.

OR, odds ratio; n, number; CI, confidence interval; RVU, relative value units.

Raw fatigue score is the sum of the raw weights for the GI procedures performed by the physician before the given colonoscopy; consensus fatigue score is the sum of the consensus weights for the GI procedures performed by the physician before the given colonoscopy; and RVU fatigue score is the sum of the RVU weights for the GI procedures performed by the physician before the given colonoscopy.