Fig. 3
From: Utility of oral fluid samples for hepatitis B antibody detection in real life conditions
OD ratios of each serum and oral fluid sample plotted according to EIA in negative and positive samples. The y-axis represents the OD ratio. The solid lines represent the average OD ratios for the serum and oral fluid samples, which were 0.881 ± 0.239 and 0.392 ± 0.130 for negative serum and oral fluid samples respectively, and 0.144 ± 0.100 and 0.021 ± 0.048 for positive serum and oral fluid samples respectively