Table 3.

Sensitivity and specificity by lesion size.

	Sensitivity, % [95% CI]						Specificity, % [95% CI]
Lesion size [cm]	Total	Combined CRC + APL	N	CRC	N	APL	N	Negative, non-APL
<0.5	3	66.7% [20.8–93.9%]	1	0%	2	100% [34.2–100%]	271	81.6% [76.5–85.7%]
0.5–0.9	2	100% [34.2–100%]	1	100% [20.7–100%]	1	100% [20.7–100%]	21	71.4% [50.0–86.2%]
1–1.9	17	70.6% [46.9–86.7%]	3	100% [43.9–100%]	14	64.3% [38.8–83.7%]	0	NA
2–2.9	20	75.0% [53.1–88.8%]	9	66.7% [35.4–87.9%]	11	81.8% [52.3–94.9%]	0	NA
≥3	21	81.0% [60.0–92.3%]	16	75.0% [50.5–89.8%]	5	100% [56.6–100%]	0	NA

APL: advanced precancerous lesions [all categories]; CRC: colorectal cancer [all stages]; non-AA: non-advanced precancerous lesions; NA: not applicable.