Fig. 3

Comparison of Parascaris spp. EPG count determined by Vetscan Imagyst and Expert Parasitologist. Algorithm performance versus an expert parasitologist’s Parascaris spp. EPG count is shown as a correlation scatterplot where EPG from the Vetscan Imagyst assay was plotted on the x-axis and EPG from the expert parasitologist on the y-axis. The closer the data points come to the straight diagonal line, the greater the correlation between the two testing methods. The algorithm’s performance improved for both test methods as EPG counts increased. Top: Lin’s concordance correlation coefficient (CCC) for Group 2 samples was calculated as 0.955, indicating substantial agreement. Bottom: Lin’s CCC for Group 3 samples was calculated as 0.944, indicating moderate agreement