Table 3.

Natural language processing tool’s performance as compared to a validated manual review of colonoscopy reports

Variable	Sensitivity (95% CI)	Specificity (95% CI)	Positive Predictive Value (95% CI)	Accuracy (95% CI)
Screening indication	100 (95.3–100)	96.4 (93.1–98.4)	90.6 (82.3–95.8)	98.2 (97.0–99.4)
Family history of CRC	89.3 (71.8–97.7)	100 (98.7–100)	100 (86.3–100)	94.6 (88.8–100)
First-degree relative with CRC	100 (79.4–100)	100 (98.7–100)	100 (79.4–100)	100 (100–100)
Age of first-degree relative with CRC	78.6 (49.2–95.3)	100 (98.7–100)	100 (71.5–100)	89.3 (78.1–100)
Cecal intubation (exam extent)	99.6 (98–100)	100 (81.5–100)	100 (98.7–100)	99.8 (99.5–100)
Adequate bowel preparation	100 (98.5–100)	100 (94.3–100)	100 (98.5–100)	100 (100–100)
Presence of polyp(s) ≥10 mm	90.5 (69.6–98.8)	100 (98.7–100)	100 (82.4–100)	95.2 (88.8–100)
Location of polyp(s) ≥10 mm	90.0 (68.3–98.8)	100 (98.7–100)	100 (81.5–100)	95.0 (88.3–100)

CI, confidence interval; CRC, colorectal cancer