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. 2017 Mar 22;12(3):e0174155. doi: 10.1371/journal.pone.0174155

Table 3. Factors that influence WT.

n = 878 WT < 6 min
(4.3±0.7 min)
n = 537
WT ≥ 6 min
(7.3 ±2.1 min)
n = 341
Univariable Multivariable
p value OR (95% C. I.) p value
Age (years), (SD) n = 537 57.5(1.7) n = 341 58.5(11.4) 0.218
Male, gender, n (%) n = 537 364(67.8) n = 341 243(71.3) 0.277
Past abdominal operation (yes), n (%) n = 537 119(22.2) n = 341 63(18.5) 0.189
Previous examination (yes), n (%) n = 537 303(56.4) n = 341 203(59.5) 0.364
Bowel preparation quality (excellent, good, fair), n (%) n = 503 497(98.8) n = 302 287(95.0) 0.001 3.811 (1.439, 10.096) 0.007
Presence of Diverticulosis (yes), n (%) n = 537 159(29.6) n = 341 106(31.1) 0.642
Insertion difficulty evaluated by endoscopist (easy), n (%) n = 503 402(79.9) n = 301 207(68.8) 0.000 1.679 (1.204, 2.341) 0.002
Pain evaluated by endoscopist (none), n (%) n = 501 421(84.0) n = 298 248(83.2) 0.764
Insertion time (mn), (SD) n = 336 6.4(4.1) n = 271 6.3(3.7) 0.880

WT: Withdrawal Time