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

Table 3 Mean ± sd and intercorrelations among the extended TPB variables

Study variables	Mean ± sd	Correlation coefficients†
Study variables	Mean ± sd	Behavioral intention	Attitudes	Subjective norms	Perceived behavioral control	Oral health knowledge	Past oral health behavior
Behavioral intention	6.13 ± 1.32	–	–	–	–	–	–
Attitudes	6.01 ± 1.36	0.277^**
Subjective norms	5.40 ± 1.58	0.408^**	0.321^**
Perceived behavioral control	5.72 ± 1.46	0.418^**	0.403^**	0.373^**
Oral health knowledge	4.13 ± 2.41	0.072	0.064	0.083	0.040
Past oral health behavior	9.90 ± 2.52	0.237^**	0.179^**	0.221^**	0.127^**	0.171^**

ISSN: 1471-2458