Table 2.

Cycle threshold (CT) mean values and the 95% confidence interval (95% CI) comparisons for (A) N gene from self-collected unstimulated saliva and for the E and N genes from nasopharyngeal swab specimens (NPS) (n = 34) and (B) ORF gene from self-collected unstimulated saliva and for the E and N genes from NPS (n = 24)

Unstimulated saliva		Nasopharyngeal swab
A	Gene N	Gene E	Gene N
Mean CT 95% CI	29.9 28.4; 31.6	25.8 23.5; 28.3	28.4 26.0; 30.9
B	Gene ORF	Gene E	Gene N
Mean CT 95% CI	27.5 25.4; 29.7	24.1 21.5; 27.0	26.4 23.9; 29.1

Values expressed by estimated means and 95% confidence intervals (95% CI)