Demographic and clinical characteristics of patients with non-NP-SLE and HC
| Items | Non-NP-SLE (n=28) | HC (n=27) | z/X2 value | P value |
| Age (years) | 46.2±10.0 | 45.1±4.7 | −1.467 | 0.142* |
| Disease duration (years) | 8.1±6.1 | – | – | |
| Education (years) | 9.7±3.4 | 12.3±3.8 | −2.445 | 0.014* |
| MMSE | 26.89±2.77 | 29.59±0.57 | −4.942 | <0.001* |
| HADS-A | 7.39±5.01 | 1.74±1.77 | −4.753 | <0.001* |
| HADS-D | 5.75±4.33 | 1.07±1.07 | −4.890 | <0.001* |
| FSMC-C | 29.71±9.03 | – | ||
| FSMC-M | 30.71±9.51 | – | ||
| C3 (g/L) | 0.89±0.23 | |||
| C4 (g/L) | 0.16±0.71 | |||
| IgA | 2.24±1.62 | |||
| IgM | 0.88±0.33 | |||
| SLEDAI | 3.61±3.21 |
P<0.05 was considered to indicate significant difference.
*Significant difference between groups.
FSMC-C, Fatigue Scale for Motor and Cognitive Functions-subscale for cognitive fatigue; FSMC-M, Fatigue Scale for Motor and Cognitive Functions-subscale for motor fatigue; HADS-A, Hospital Anxiety and Depression Scale-anxiety subscale; HADS-D, Hospital Anxiety and Depression Scale-depression subscale; HC, healthy control; MMSE, Mini-Mental State Examination; non-NP-SLE, non-neuropsychiatric systemic lupus erythematosus ; SLEDAI, Systemic Lupus Erythematosus Disease Activity Index.