Diagnostic Accuracy of NICE Classification System for Optical Recognition of Predictive Morphology of Colorectal Polyps
Table 2
Characteristics of polyps included in the study ( patients; polyps).
(%)
Sex of the patient
Male
490
(66.7)
Female
245
(33.3)
Patients age (years), median (IQR)
63
(58–70)
Patients age (years)
≤44
40
(5.4)
45–54
81
(11.0)
55–64
291
(39.6)
65–74
220
(29.9)
≥75
103
(14.0)
Age (years) by sex, median (IQR)
Male
63
(59–70)
Female
63
(56–70)
Number of examined polyps per physician
Physician A
388
(52.8)
Physician B
114
(15.5)
Physician C
98
(13.3)
Physician D
37
(5.0)
Physician E
38
(5.2)
Physician F
30
(4.1)
Physician G
10
(1.4)
Other physicians
20
(2.7)
Polyp location
Rectum
115
(15.6)
Sigmoid colon
320
(43.5)
Descending colon
65
(8.8)
Splenic flexure
7
(1.0)
Transverse colon
39
(5.3)
Hepatic flexure
30
(4.1)
Ascending colon
51
(6.9)
Cecum
108
(14.7)
Polyp size (mm), median (IQR)
6
(4–12)
Polyp size (mm)
Diminutive (1–5 mm)
336
(46.0)
Small (6–9 mm)
140
(19.2)
Large (10–20 mm)
205
(28.1)
Extra-large (>20 mm)
49
(6.7)
The Paris endoscopic classification
Sessile polyps (Is)
497
(69.5)
Pedunculated polyps (Ip)
137
(19.2)
Subpedunculated polyps (Is + Ip)
44
(6.2)
Flat elevation of mucosa (IIa)
27
(3.8)
Flat elevation with central depression (IIa + IIc)
5
(0.7)
IIa + IIb
3
(0.4)
Is + IIa
2
(0.3)
The NICE classification
1
104
(14.1)
2
612
(83.3)
3
19
(2.6)
Lesions (NICE classification)
Nonneoplastic
104
(14.1)
Neoplastic
631
(85.9)
Histopathological diagnosis
LGIEN
375
(51)
HGIEN
209
(28.4)
Hyperplastic polyp
108
(14.7)
Normal tissue
18
(2.4)
Invasive carcinoma
16
(2.2)
Other
9
(1.2)
The risk of lesions
Low (LGIEN, hyperplastic, normal tissue, and other)
510
(69.4)
High (HGEIN, invasive carcinoma)
225
(30.6)
The data is presented as the number (percentage), unless otherwise indicated. The data were not correctly collected for the Paris endoscopic classification for 20 (2.7%) patients.
