Table 3.

Pairwise Comparison of Serum UA Levels Between Healthy Individuals and Patients With Alzheimer’s Disease of Varying Severity.^a

Groups	Mean Difference (μmol/L)	q	P Value
1, 2	18.76	0.61	.667
1, 3	83.18	3.45	.045
1, 4	125.72	4.15	.014
2, 3	64.42	3.50	.044
2, 4	106.96	3.99	.025
3, 4	42.54	1.74	.390

Abbreviations: AD, Alzheimer’s disease; HC, healthy control; UA, uric acid.

^aGroup 1 represents HC group, group 2 is mild AD group, group 3 is moderate AD group, and group 4 is severe AD group. The pairwise comparison was performed for all permutations of the groups.