College Students with Oral Habits Exhibit Worse Psychological Status and Temporomandibular-Related Quality of Life: A Correlational Study

Table 5

Results of the multivariate linear regression model (N = 505) using the total score of the Oral Health Impact Profile for TMDs (OHIP-TMDs) as the dependent variables.

Variable	Correlation analysis		Multivariate linear regression
	R		B	Std. error	Beta (standardized)	95% confidence interval for B	Adjusted
(Constant)			4.516	1.879		0.825–8.208	0.017
Age	0.026	0.557
Gender	0.103	0.021
Male					Reference
Female			0.451	1.118	0.018	(−1.745)–2.647	0.687
Major	0.069	0.119
Nonmedical
Medical
Education level	0.072	0.104
Undergraduate
Master’s
Doctoral
Oral habits	0.243	<0.001
Without					Reference
With			4.388	1.104	0.177	2.219–6.558	<0.001
R square
Adjusted R square			0.033/0.029

and