Voxel-based alterations in spontaneous brain activity among very-late-onset schizophrenia-like psychosis: A preliminary resting-state functional magnetic resonance imaging study

Table 1 Demographic, neuropsychological, and clinical characteristics of two groups

Variables	VLOSLP (n = 33)	HCs (n = 34)	t/χ2	P value
Age, years	74.18 ± 6.439	72.15 ± 4.432	1.502	0.139
Sex, male/female	11/22	16/18	1.311	0.252
Education, years	6.67 ± 3.079	7.94 ± 2.994	-1.718	0.091
ADL score	98.94 ± 3.699	100.00 ± 0.000	-1.647	0.109
MMSE score	24.70 ± 3.312	27.12 ± 1.572	-3.804	< 0.001
MoCA score	16.33 ± 4.456	20.62 ± 3.266	-4.498	< 0.001
RBANS total score	59.73 ± 11.555	73.00 ± 11.468	-4.719	< 0.001
RBANS immediate memory	54.39 ± 12.250	66.56 ± 15.315	-3.584	< 0.001
RBANS visuospatial skills	73.27 ± 12.350	73.68 ± 9.098	-0.152	0.880
RBANS language	79.48 ± 13.985	91.24 ± 11.594	-3.749	< 0.001
RBANS attention	63.36 ± 16.865	84.00 ± 18.055	-4.831	< 0.001
RBANS delayed memory	62.82 ± 17.782	80.68 ± 16.622	-4.248	< 0.001
PANSS total score	73.76 ± 9.779	NA	NA	NA
PANSS positive score	22.85 ± 4.452	NA	NA	NA
PANSS negative score	15.18 ± 3.860	NA	NA	NA
PANSS general score	36.03 ± 5.876	NA	NA	NA

VLOSLP: Very-late-onset schizophrenia-like psychosis; HCs: Healthy controls; ADL: Activity of Daily Living Scale; MMSE: Mini Mental State Examination; MoCA: Montreal Cognitive Assessment; RBANS: Repeatable Battery for the Assessment of Neuropsychological Status; PANSS: Positive and Negative Syndrome Scale; NA: Not available.