Effectiveness of very low-volume preparation for colonoscopy: A prospective, multicenter observational study

Table 3 Logistics multiple regression model estimates for high-quality cleansing of the right colon

Predictors	Odds ratios	95%CI	P value
Female Gender	1.25	0.91-1.72	0.169
Age, yr	1.00	0.99-1.01	0.927
BMI	0.98	0.95-1.02	0.336
Diabetes (absence)	1.93	1.02-3.65	0.043
Hypertension	1.00	0.69-1.44	0.983
Chronic constipation (absence)	0.70	0.47-1.04	0.080
Previous adequate cleansing	1.06	0.52-2.18	0.863
Preparation (ref = 4 L PEG)
2 L PEG	0.50	0.34-0.74	< 0.001
1 L PEG	1.58	1.02-2.44	0.041
Preparation (ref = 2 L PEG)
4 L PEG	1.99	1.35-2.91	< 0.001
1 L PEG	3.13	2.08-4.72	< 0.001
Afternoon-morning split regimen	3.33	2.19-5.06	< 0.001
Low fiber diet ≥ 3 d	0.99	0.63-1.56	0.967
Time lag ≤ 5 h	1.22	0.81-1.83	0.337

BMI: Body mass index; PEG: Polyethylene glycol.