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Table 1 Baseline characteristics of patients, polyps, and procedures in groups A and B

From: Prophylactic clip application for large pedunculated polyps before snare polypectomy may decrease immediate postpolypectomy bleeding

Patient-related factorsGroup A
(n = 53)
Group B
(n = 63)
P-value
Age, median, years (range)57 (31–75)59 (33–78)0.939
Male sex, no. (%)40 (75.5)50 (79.4)0.659
HTN, no. (%)15 (28.3)27 (42.9)0.123
DM, no. (%)4 (7.5)7 (11.1)0.752
Cardiovascular disease, no. (%)1 (1.9)4 (6.3)0.374
Use of antiplatelet, no. (%)7 (13.2)13 (20.6)0.332
BMI, median, kg/m2 (range)23.6 (14.1–34.0)24.2 (16.5–31.3)0.455
Laboratory findings
 Hematocrit, mean, % (SD)41.8 (4.6)41.6 (4.5)0.812
 Platelet count, mean, × 103/μL (SD)251 (64)243 (66)0.519
 Prothrombin time, mean, INR (SD)0.98 (0.08)0.98 (0.06)0.962
 PTT, mean, s (SD)28.7 (2.5)27.8 (2.2)0.053
Polyp-related factorsGroup A
(n = 67)
Group B
(n = 70)
P-value
Polyp size, median, mm (range)15 (10–30)15 (10–40)0.173
Stalk diameter, median, mm (range)3 (1–5)3 (1–10)0.362
Location of polyp  0.366
 Right colon, no. (%)28 (41.8)24 (34.3) 
 Left colon, no. (%)39 (58.2)46 (65.7) 
Histology  0.344
 Adenoma, low grade, no. (%)46 (68.7)50 (71.4) 
 Adenoma, high grade, no. (%)8 (11.9)9 (12.9) 
 Adenocarcinoma, no. (%)3 (4.5)4 (5.7) 
 Traditional serrated adenoma, no. (%)3 (4.5)4 (5.7) 
 Hamartomatous polyp, no. (%)3 (4.5)1 (1.4) 
 Inflammatory polyp, no. (%)2 (3.0)1 (1.4) 
 Filiform serrated adenoma, no. (%)1 (1.5)1 (1.4) 
 Hyperplastic polyp, no. (%)1 (1.5)0 (0.0) 
Procedure-related factorsGroup A
(n = 53)
Group B
(n = 63)
P-value
Bowel preparation  0.329
 Excellent, no. (%)15 (28.3)25 (39.7) 
 Good, no. (%)32 (60.4)31 (49.2) 
 Adequate, no. (%)6 (11.3)7 (11.1) 
  1. HTN, hypertension; DM, diabetes mellitus; BMI, body mass index; SD, standard deviation; INR, international normalized ratio; PTT, partial thromboplastin time