Personalizing withdrawal time by insertion time to achieve target adenoma detection rate in colonoscopy

Table 3 Univariate and multivariate logistic regression analyses of colorectal adenoma

Variables	Univariable analysis		Multivariable analysis
	OR (95%CI)	P value	OR (95%CI)	P value
Male (%)	1.79 (1.32-2.41)	< 0.001	1.59 (1.15-2.19)	0.005
Age	1.05 (1.03-1.07)	< 0.001	1.05 (1.03-1.08)	< 0.001
BMI ≥ 24 kg/m2	1.00 (0.74-1.34)	0.989
Hypertension	1.34 (1.00-1.81)	0.051
Diabetes	1.13 (0.82-1.56)	0.463
Hyperlipidemia	0.76 (0.51-1.14)	0.187
Hyperlipidemia	0.61 (0.36-1.05)	0.073
Coronary heart disease	0.68 (0.43-1.06)	0.088
Renal insufficiency	0.68 (0.46-1.02)	0.061
Stroke	0.68 (0.43-1.06)	0.088
Hyperthyroidism	1.76 (0.84-2.14)	0.657
Hypothyroidism	0.78 (0.36-1.68)	0.522
Thyroid nodules	1.08 (0.71-1.63)	0.723
COPD	1.13 (0.21-6.24)	0.884
Rheumatic diseases	0.56 (0.34-0.94)	0.029	0.72 (0.42-1.23)	0.229
Mental illness	0.89 (0.43-1.81)	0.739
Benign tumors of the gastrointestinal tract	1.64 (1.11-2.43)	0.014	1.46 (0.96-2.21)	0.079
Other cancers	0.89 (0.52-1.51)	0.664
History of abdominopelvic surgery	0.98 (0.65-1.50)	0.943
Constipation	1.14 (0.53-2.47)	0.741
Bellyache	0.83 (0.59-1.16)	0.283
Diarrhea	0.94 (0.61-1.43)	0.761
Abdominal distension	0.84 (0.43-1.66)	0.623
Blood in the stool	0.77 (0.39-1.50)	0.439
Black stool	0.48 (0.14-1.68)	0.252
Vomit	1.13 (0.89-3.57)	0.542
Smoking	1.50 (0.96-2.35)	0.073
Drinking	1.12 (0.64-1.95)	0.701
Doctor level	1.59 (1.09-2.32)	0.016	1.79 (1.20-2.68)	0.005
BBPS	0.97 (0.66-1.44)	0.879
Intravenous anesthesia	0.97 (0.63-1.48)	0.873
Intubation time	1.01 (1.00-1.03)	0.621
Withdrawal time	1.02 (1.01-1.05)	< 0.001	1.02 (1.01-1.05)	< 0.001

OR: Odds ratio; CI: Confidence interval; BMI: Body mass index; COPD: Chronic obstructive pulmonary disease; BBPS: Boston bowel preparation scale.