Table 7 Multiple linear regression analyses of knowledge, attitudes, and practices scores for orthopedic nurses with demographic characteristics.

Variables	B-coefficients	Standard error	Standardized β	t	p	95% CI	VIF
Knowledge
Constant	53.649	13.376	–	4.011	< 0.001	27.360 to 79.937	–
Age	2.048	1.822	0.049	1.124	0.262	−1.533 to 5.629	1.214
Work experience	3.023	1.469	0.083	2.057	0.040	0.135 to 5.911	1.024
Hospital level	13.205	1.402	0.385	9.416	< 0.001	10.449 to 15.961	1.060
Professional title	4.649	1.607	0.129	2.892	0.004	1.490 to 7.807	1.253
Highest educational attainment	10.805	3.349	0.130	3.226	0.001	4.223 to 17.388	1.032
Obtained a specialist nurse certificate	−16.526	3.916	−0.169	−4.220	< 0.001	−24.222 to -8.830	1.015
Attitudes
Constant	40.858	4.200	–	9.729	< 0.001	32.605 to 49.112	–
Age	0.825	0.590	0.066	1.400	0.162	–0.334 to 1.985	1.204
Work experience	0.958	0.477	0.087	2.007	0.045	0.020 to 1.897	1.024
Professional title	1.132	0.519	0.104	2.181	0.030	0.112 to 2.152	1.236
Highest educational attainment	3.827	1.083	0.152	3.534	< 0.001	1.699 to 5.955	1.021
Obtained a specialist nurse certificate	–9.755	1.269	–0.330	–7.690	< 0.001	–12.248 to − 7.262	1.009
Practices
Constant	34.996	4.218	–	8.298	< 0.001	26.707 to 43.284	–
Age	0.554	0.575	0.044	0.965	0.335	−0.575 to 1.683	1.214
Work experience	0.935	0.463	0.085	2.019	0.044	0.025 to 1.846	1.024
Hospital level	2.382	0.442	0.230	5.388	< 0.001	1.514 to 3.251	1.060
Professional title	0.821	0.507	0.075	1.620	0.106	−0.175 to 1.817	1.253
Highest educational attainment	3.247	1.056	0.129	3.075	0.002	1.172 to 5.323	1.032
Obtained a specialist nurse certificate	−9.228	1.235	−0.312	−7.474	< 0.001	−11.655 to − 6.802	1.015

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