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Table 1 Baseline Characteristics of the Study Participants

From: The effect of quality of segmental bowel preparation on adenoma detection rate

Patients,n 4940
Age,years,mean ± SD 61.4 ± 10.3
Male(%) 2380 (48.2)
Indication(%)
 Screening, Surveillance, Diagnostic 4186 (84.7)
 For polypectomy 314 (6.4)
 For ESD 440 (8.9)
Time of day colonoscopy performed(%)
 Morning 1236 (25.0)
 Afternoon 3704 (75.0)
Participating Endoscopists(%)
 Senior 1575 (31.9)
 Intermediate 2063 (41.8)
 Junior 1302 (26.3)
Total BBPS score(%)
 0–3(inadequate bowel preparation) 101 (2.1)
 4–5(poor bowel preparation) 885 (17.9)
 6(fair bowel preparation) 1199 (24.3)
 7–8(good bowel preparation) 2381 (48.2)
 9(excellent or perfect bowel preparation) 374 (7.6)
Air bubble score(%)
 0(no air bubble) 1693 (34.3)
 1(minimal bubbles) 1824 (36.9)
 2(moderate amount of air bubbles) 984 (19.9)
 3(large amount of air bubbles) 439 (8.9)
Colonoscopic findings(%) 2115 (42.8)
 Adenoma 1231 (24.9)
 Advanced adenoma 476 (9.6)
 Cancer 104 (2.1)
 Inflammatory bowel disease. 100 (2.0)
 Diverticula 93 (1.9)
 Others 111 (2.2)