Table 3.

Multivariable linear regressions of knowledge of guidelines.

Variables	Level	Multivariable
		Coefficient (95% CI)	p-value
Hospital level	Tertiary	0.20 (−0.06, 0.46)	0.128
	Secondary and below	Reference
Years of practice	11~20	0.12 (−0.16, 0.39)	0.401
	21~30	−0.05 (−0.40, 0.30)	0.786
	≥31	−0.14 (−0.60, 0.32)	0.551
	≤10	Reference
Education background	PhD	0.67 (0.39, 0.95)	<0.001
	Master	0.67 (0.39, 0.95)	<0.001
	Bachelor or college	Reference
Professional title	Senior	0.30 (−0.05, 0.66)	0.094
	Vice-senior	0.12 (−0.15, 0.38)	0.391
	Middle and below	Reference
Having participated in guideline development	Yes	−0.00 (−0.30, 0.29)	0.973
	No	Reference
Region	The Middle	−0.28 (−0.51, −0.04)	0.022
	The West	−0.10 (−0.33, 0.14)	0.431
	The East and the Northeast	Reference
Number of guidelines consulted		0.23 (0.07, 0.39)	0.005

CI, confidence interval.