Table 5

The correlation analysis between the study variables

	Mean±SD	1	2	3	4	5	6	7	8	9	10	11
1. Age	8.14±0.67	1
2. Gender		0.038	1
3. Grade		0.595***	−0.035	1
4. Only-child		0.040	0.093*	0.021	1
5. Knowledge		0.057	−0.113*	0.087^*	−0.033	1
6. Self-efficacy	6.05±1.20	−0.040	0.161**	−0.064	−0.030	0.100*	1
7. Behaviour	7.90±2.60	0.025	0.160***	0.010	−0.006	0.129**	0.397**	1
8. Oral health	4.33±0.54	−0.039	0.040	−0.059	0.034	0.050	0.205**	0.250**	1
9. Functional well-being	4.65±0.41	0.065	0.073	0.039	−0.002	0.108**	0.227**	0.253**	0.517**	1
10. Socio-emotional well-being	4.10±0.39	−0.068	−0.020	−0.006	−0.051	0.112**	0.105**	0.160**	0.349**	0.380**	1
11. OHRQOL	4.28±0.34	−0.040	0.031	−0.075	−0.015	0.113**	0.201**	0.261**	0.763**	0.698**	0.843**	1

*P<0.05; **p<0.01; ***p<0.001.
OHRQOL, oral health-related quality of life.