2D-IGA 2D-IGA Before EPIT Before EPIT After 6-month EPIT After 6-month EPIT
Severity level Value range Absolute Frequency Relative Frequency Absolute Frequency Relative Frequency
Normal dog 0 or 1 3 20% 6 40%
Mild CAD 2 6 40% 8 53.3%
Moderate CAD 3 3 20% 1 6.67%
Severe CAD 4 3 20% 0 0%