Table 3.

Significance of Difference Between Categories of Compliance Variables (Consisting of Two Groups) and Treatment Compliance Indicators Using Independent-Sample t-Test

Variable	Orthodontic Compliance Indicators
	Treatment Duration (M ± SD)	Failed Appointments (M ± SD)	Incidence of Breakage (M ± SD)	Total Number of Breakages (M ± SD)
Gender
Male (n = 35)	22.08 ± 6.68	1.49 ± 2.02	3.09 ± 1.92	5.40 ± 4.10
Female (n = 73)	22.92 ± 7.28	1.34 ± 1.67	2.32 ± 1.76	3.70 ± 3.22
t-test P value	.56	.70	.041*	.021*
Mean difference	−0.85	0.14	0.77	1.70
95% confidence interval	−3.74 to 2.04	−0.59 to 0.87	0.034 to 1.51	0.27 to 3.14
Tooth brushing
Yes (n = 101)	22.77 ± 7.07	1.37 ± 1.82	2.48 ± 1.78	3.99 ± 3.38
No (n = 7)	20.91 ± 7.49	1.71 ± 1.25	3.86 ± 2.34	8.00 ± 4.80
t-test P value	.503	.620	.054	.004*
Mean difference	1.86	−0.35	−1.38	−4.01
95% confidence interval	−3.63 to 7.36	−1.73 to 1.04	−2.79 to 0.02	−6.70 to −1.32
School
Public (n = 68)	23.49 ± 6.98	1.37 ± 1.76	2.60 ± 1.80	4.31 ± 3.53
Private (n = 40)	21.24 ± 7.10	1.43 ± 1.84	2.50 ± 1.92	4.15 ± 3.75
t-test P value	.11	.87	.78	.83
Mean difference	2.25	−0.06	0.10	0.16
95% confidence interval	−0.53 to 5.02	−0.76 to 0.65	−0.63 to 0.83	−1.27 to 1.59

^*Statistically significant.