Table 4.

Results of multiple linear regression analysis.

Variables	B	SE	B′	t	P
Constant	1.738	0.300		5.797	0.000
Age	−0.032	0.076	−0.038	−0.417	0.677
Educational background	0.232	0.081	0.205	2.873	0.005
Maternal and Child Health Care Technology Assessment Certificate	0.017	0.115	0.011	0.147	0.883
Midwifery training situation(months)	0.064	0.062	0.092	1.030	0.305
Midwifery working years	0.153	0.061	0.251	2.499	0.014
Professional identity scores	0.433	0.070	0.429	6.194	0.000

R² = 0.352, adjusted R² = 0.325, F = 12.950.

Note, B = beta, SE = standard deviation.