Table 3.

Multivariate analysis of factors associated with insertion time during unsedated colonoscopy

Variables	N = 612	HR (95% CI)	p value	B score	DCS points
Age (years)
<65	518
≥65	94	1.29 (1.03-1.62)	0.027	0.26	1
BMI (kg/m2)
≥18.5	544
<18.5	68	1.59 (1.23-2.07)	0.001	0.47	2
Colonoscopists
Senior	414
Junior	198	1.29 (1.08-1.54)	0.004	0.26	1
Sleep quality
Excellent or good	534
Fair or bad	78	1.33 (1.04-1.72)	0.026	0.29	1

BMI, body mass index.