Table 1.

Clinicopathologic characteristics of study subjects

Screening setValidation set
HCCRNHCCRN
(n = 25)(n = 24)(n = 52)(n = 136)
Age, y
 Median (range)34 (22–49)67 (37–84)58 (23–77)68 (37–86)
Gender
 Male (%)19 (76.0)13 (54.2)23 (44.2)93 (68.4)
 Female (%)6 (24.0)11 (45.8)29 (55.8)43 (31.6)
Locationa
 Right (%)13 (54.2)32 (23.7)
 Left (%)7 (29.2)55 (40.7)
 Both (%)4 (16.7)48 (35.6)
Morphology
 Protruded (%)3 (12.5)45 (33.1)
 Superficial (%)13 (54.2)59 (43.4)
 Both (%)8 (33.3)32 (23.5)
Size of the index lesion, mm
 Median (range)8 (4–32)10 (3–55)
Number of neoplastic lesions
 Median (range)2 (1–9)1.5 (1–16)
Histology of the index lesion
 LGIN12 (50.0)94 (69.1)
  Tubular adenoma12 (50.0)70 (51.5)
  Tubulovillous adenoma0 (0.0)15 (11.0)
  Sessile serrated polyp/adenoma0 (0.0)5 (3.7)
  Traditional serrated adenoma0 (0.0)2 (1.5)
  Mixed serrated polyp0 (0.0)2 (1.5)
 HGIN8 (33.3)34 (25.0)
 Cancer4 (16.7)8 (5.9)

Abbreviations: HC, healthy control, CRN, colorectal neoplasia.

  • aLocation of one case in the validation phase was unknown.