Table 5. SSD threshold based on Gaussian KDE

Age 2 3 3.5 4 4.5 5
Thresh. (%) 3.5 8.8 13.1 19.4 19.5 27.4
Age 5.5 6 6.5 7 8 9
Thresh. (%) 28.7 33.7 37.9 44.2 33.7 40.1
SSD, speech sound disorder; KDE, Kernel density estimation.