Table 4.

Linear regression analysis for numerical data, * p < 0.05.

	Age			Sex			Crooked Teeth
	β	x2/t	p	β	x2/t	p	β	x2/t	p
Self Confidence	0.091	10.25	0.213	0.226	30.08	0.002 *	−0.079	−0.711	0.478
Psychological Impact	−0.154	−20.08	0.039 *	−0.021	−0.279	0.781	0.178	10.58	0.115
Conviction	0.087	10.20	0.231	0.116	10.59	0.112	0.217	10.97	0.049 *