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. 2021 Apr 22;9(5):E684–E692. doi: 10.1055/a-1388-6694

Table 4. Sensitivity, specificity, negative and positive predictive values for small and diminutive polyps according to optical diagnosis. 1 .

SIMPLE diagnosis Accuracy of optical diagnosis, n/N (%) [95 %CI]
Sensitivity Specificity NPV PPV Rectosigmoid NPV 2
Diminutive polyps

  • Hyperplastic polyps

 98/126 (77.8) [69.5–84.7] 76/125 (60.8) [51.7–69.4] 76/104 (73.1) [63.5–81.3] 98/147 (66.7) [58.4–74.2] –

  • Adenomas

 66/120 (55.0) [45.7–64.1] 121/131 (92.4) [86.4–96.3] 121/175 (69.1) [61.7–75.9] 66/76 (86.8) [77.1–93.5] 72/83 (86.7) [77.5–93.2]

  • Sessile serrated adenomas

 2/5 (40.0) [0.5–85.3] 220/246 (89.4) [84.9–93.0] 220/223 (98.7) [96.1–99.7] 2/28 (7.1) [0.9–23.5] –
Small polyps

  • Hyperplastic polyps

 107/144 (74.3) [66.3–81.2] 118/173 (68.2) [60.7–75.1] 118/155 (76.1) [68.6–82.6] 107/162 (66.0) [58.2–73.3] –

  • Adenomas

 91/161 (56.5) [48.5–64.3] 145/156 (92.9) [87.7–96.4] 145/215 (67.4) [60.7–73.7] 91/102 (89.2) [81.5–94.5] 80/94 (85.1) [76.3–91.6]

  • Sessile serrated adenomas

 8/12 (66.7) [34.9–90.1] 260/305 (85.2) [80.8–89.0] 260/264 (98.5) [96.2–99.6] 8/53 (15.1) [6.7–27.6] –

NPV, negative predictive value; PPV, positive predictive value.

1

For high-confidence diagnoses.

2

Adenomas and sessile serrated adenomas were considered to be equivalent.