Table 2.

General information of interviewees (N = 15).

Number	Gender	Age	Grade	Duration of fixed appliance wear (months)	Self-management ability score
					Knowledge dimension	Belief dimension	Behavioral dimension	Environmental dimension
P1	Boy	17	High school	12	45.88	40.00	49.33	46.67
P2	Boy	16	High school	14	51.76	35.00	50.67	53.33
P3	Girl	15	Junior high school	20	49.41	60.00	45.33	43.33
P4	Boy	16	High school	16	50.59	56.67	45.33	63.33
P5	Boy	15	Junior high school	12	49.41	51.67	48.00	80.00
P6	Girl	16	High school	20	52.94	61.67	50.67	53.33
P7	Girl	17	High school	18	51.76	51.67	52.00	73.33
P8	Girl	13	Junior high school	6	67.06	55.00	50.06	56.67
P9	Boy	14	Junior high school	14	57.20	55.29	58.33	56.67
P10	Girl	17	High school	12	57.65	48.33	50.67	43.33
P11	Boy	16	High school	10	49.41	60.00	62.67	76.67
P12	Boy	15	Junior high school	9	60.00	61.67	56.00	53.33
P13	Girl	12	Primary school	6	60.00	75.00	60.00	43.33
P14	Girl	13	Junior high school	6	48.24	68.33	61.33	70.00
P15	Boy	16	High school	9	49.41	60.00	62.67	76.67