Table 1.

Patient characteristics of the NPSLE and non-NPSLE patients

	NPSLE patients (n = 38)	Non-NPSLE patients (n = 117)	p value
Female, n (%)	33 (87%)	108 (92%)	0.307
Age, years	40 ± 14	42 ± 13	0.351
Hypertension	16 (42%)	39 (33%)	0.326
Current smoking	5 (13%)	16 (14%)	0.720
BMI	25 ± 5	25 ± 4	0.990
Diabetes	3 (7%)	6 (5%)	0.626
Duration of SLE, years	6 ± 8	8 ± 8	0.083
SLEDAI-2K	8 ± 8	4 ± 4	0.002*
SDI	1.1 ± 1.1	0.8 ± 1.1	0.045*

Data represents n (percentage) or means ± standard deviations. Gender, age, cardiovascular risk factors, duration of disease, and damage indexes are shown. Differences between the two groups are expressed in p value and calculate for nominal variables with chi-square (gender, hypertension, smoking, and diabetes) and for continuous variables with an unpaired t-test (age and BMI) or Mann-Whitney U test (duration of SLE, SLEDAI-2K, and SDI) based on their distribution

BMI body mass index, SLEDAI-2K Systemic Lupus Erythematosus Disease Activity Index 2000, SDI Systemic Lupus International Collaborating Clinics Damage Index

*p < 0.05