Table 1.

Demographic analysis of salivary samples

Variables	Orthodontic clinic	Saliva samples	Statistical analysis
Gender
Female	n = 376 (61.3%)	n = 34 (60.1%)	χ2 = 0.008, d.f. =1
Male	n = 237 (38.7%)	n = 22 (39.2%)	p = 0.9271
Race
White	n = 215 (35.1%)	n = 20 (35.7%)	χ2 = 0.009, d.f. = 1
Non-White	n = 398 (64.9%)	n = 36 (64.3%)	p = 0.9234
Hispanic	n = 331 (53.9%)	n = 30 (55.5%)
Black	n = 59 (9.8%)	n = 5 (8.9%)
Asian/Other	n = 8 (1.3%)	n = 1 (1.8%)
Age
<18	n = 426 (34.7%)	n = 0 (0.0%)	χ2 = 29.142, d.f. = 1
18 - 64 years	n = 800 (65.3%)	n = 56 (100.0%)	p < 0.0001
18-24	n = 159 (19.9%)	n = 13 (23.2%)
25-34	n = 283 (35.4%)	n = 23 (41.1%)
35-44	n = 257 (32.1%)	n = 17 (30.4%)
45-54	n = 101 (12.5%)	n = 3 (5.4%)