Table 1.

Clinical and sociodemographic data of SLE and control individuals.

Groups	Mean	SD	DF	F statistics	p value
Age in yearsa
Controls	44.50	8.798	2.86	2.297	0.107
SLE with memory deficit	39.35	11.435
SLE without memory deficit	45.04	10.232
Years of educationa
Controls	11.18	5.030	2.86	0.476	0.623
SLE with memory deficit	9.85	3.884
SLE without memory deficit	10.89	4.896
Sexb
Controls	4 M/18 F	–	2	–	0.065
SLE with memory deficit	2 M/18 F	–
SLE without memory deficit	1 M/46 F	–
Years from SLE diagnosisc
Controls	–	–	67	–	0.515
SLE with memory deficit	15.250	5.066
SLE without memory deficit	14.425	3.634
Beck Depression Inventorya
Controls	9.22	8.551	2.70	1.554	0.219
SLE with memory deficit	14.76	13.437
SLE without memory deficit	10.97	7.852
Mini-Mental State Examination scorea
Controls	27.41	2.404	2.85	2.759	0.070
SLE with memory deficit	26.50	2.606
SLE without memory deficit	27.85	1.763

DF: degrees of freedom; F: female; M: male; SD: standard deviation; SLE: systemic lupus erythematosus.

Statistical analysis used: ^aanalysis of variance with post-hoc Bonferroni; ^bchi-square test; ^ct test for equality of means.