Table 1: The demographic and clinical characteristics of the subjects recruited in the study.

From: Genetic Polymorphisms of rs3077 and rs9277535 in HLA-DP associated with Systemic lupus erythematosus in a Chinese population

CharacteristicsSLEControlP value
Number of subjects335635
Age, mean ± SD (years)35.77 ± 13.2536.28 ± 13.430.795
Male (%)/Female (%)37 (11.04)/298 (88.96)80 (12.60)/555(87.40)0.480
Disease duration, mean ± quartile interval (months)36.00 (12.00–96.00)
SLEDAI scores, mean ± SD11.76 ± 5.53
ANA-positive(%)308 (91.94)
anti-dsDNA-positive (%)120 (35.82)
anti-Sm-positive(%)96 (28.66)
C3, mean ± SD(g/L)0.67 ± 0.30
C4, mean ± SD(g/L)0.15 ± 0.08
Cutaneous vasculitis (%)32 (9.55)
Arthritis (%)132 (39.40)
Albuminuria (%)250 (74.63)
Rash (%)100 (29.85)
Pleuritis (%)5 (1.49)
Pericarditis (%)5 (1.49)
Neurological disorder (%)33 (9.85)
  1. Abbreviations: SLE, systemic lupus erythematosus; SD, standard deviation; SLEDAI, SLE disease activity index; ANA, antinuclear antibody; anti-dsDNA, double-stranded DNA antibody; anti-Sm, Smith antibody; C3, complement 3; C4, complement 4.