Table 3. Evaluation of disease severity scores from two F₁ mapping populations (PIO and AFX) for normal distribution using the Kolmogorov-Smirnov tests.

Population	Kolmogorov-Smirnov Z	p-value	Significance
PIO	0.443	0.989	ns
AFX	0.354	1.000	ns
Combined*	0.474	0.978	ns

Note: “*”, data of PIO and AFX populations were combined and analyzed. “ns”, not significant.