Application of the extended theory of planned behavior to understand Chinese students’ intention to improve their oral health behaviors: a cross-sectional study

Table 4 Hierarchical multiple regression analysis including age, sex, attitudes, subjective norms, perceived behavioral control, oral health knowledge and past oral health behavior

Variables	Model1		Model2		Model3
Variables	B (SE)	β	B (SE)	β	B (SE)	Β
intercept	4.16(1.40)^**		3.53(1.23)^**		3.03(1.23)^**
Sex	0.43(0.13)^**	0.16^*	0.22(0.11)	0.08	0.21(0.13)	0.08
Age	0.13(0.14)	0.05	−0.08(0.12)	−0.03	−0.08(0.12)	−0.03
Attitudes			0.07(0.05)	0.07	0.05(0.05)	0.05
Subjective norms			0.23(0.04)^**	0.28^**	0.21(0.04)^**	0.25^**
Perceived behavioral control			0.27(0.04)^**	0.29^**	0.26(0.04)^**	0.28^**
Oral health knowledge					0.02(0.03)	0.03
Past oral health behavior					0.06(0.02)^**	0.12^**
R²	0.030^**		0.267^**		0.283^**
F	6.262^**		29.59^**		22.80^**
ΔR²	0.030^**		0.237^**		0.016^*
ΔF	6.262^**		43.84^**		4.536^*

^**P < 0.01, ^*P < 0.05; B standardized regression coefficient; SE standard error of standardized regression coefficient; β unstandardized regression coefficient

ISSN: 1471-2458