Table 1.

Demographic and clinical data for the early-onset and late-onset groups

	Early-onset group (n = 16)	Late-onset group (n = 18)	p value
Age, years	61.2 (5.1)	76.7 (4.1)	0.000
Sex (male/female)	8/8	7/11	0.515
Educational history, years	12.1 (1.8)	12.4 (1.6)	0.654
Disease duration, years	3.3 (1.6)	3.3 (2.6)	0.974
MMSE score (max. 30)	23.1 (3.3)	21.3 (4.4)	0.204
mcSUVR	1.65 (0.15)	1.62 (0.18)	0.732

Values are presented as mean (SD) or n. Differences between groups were assessed using Student's t test (age, educational history, disease duration, and MMSE score) and Fisher's exact test (sex ratio). MMSE, Mini-Mental State Examination; mcSUVR, mean cortical standardized uptake value ratio.