Evaluation of the antibacterial effect of titanium dioxide nanoparticles combined with acrylic laminates for functional orthodontic appliances: a randomized controlled clinical trial

Table 2 Age and sex distribution in the two groups

Characteristic	Test Group	Control group	Test of significance
Sex Male Female	N (%) 6 (60%) 4 (40%)	N (%) 5 (50%) 5(50%)	χ² -	P value 1.000
Age (years)	Mean ± SD 11 ± 1.16	Mean ± SD 10.6 ± 1.17	t value 0.768	P value 0.452

Notes: N = absolute frequency. χ² = chi-square. SD = standard deviation. The test of significance is Fisher’s exact test for sex and independent-samples t-test for age

ISSN: 1472-6831