Table 1 Demographic analysis of salivary samples

n = 376 (61.3%)

n = 34 (60.1%)

χ2 = 0.008, d.f. =1

n = 237 (38.7%)

n = 22 (39.2%)

p = 0.9271

n = 215 (35.1%)

n = 20 (35.7%)

χ2 = 0.009, d.f. = 1

n = 398 (64.9%)

n = 36 (64.3%)

p = 0.9234

n = 331 (53.9%)

n = 30 (55.5%)

n = 59 (9.8%)

n = 5 (8.9%)

n = 8 (1.3%)

n = 1 (1.8%)

n = 426 (34.7%)

n = 0 (0.0%)

χ2 = 29.142, d.f. = 1

n = 800 (65.3%)

n = 56 (100.0%)

p < 0.0001

n = 159 (19.9%)

n = 13 (23.2%)

n = 283 (35.4%)

n = 23 (41.1%)

n = 257 (32.1%)

n = 17 (30.4%)

n = 101 (12.5%)

n = 3 (5.4%)