Table 1 Patient characteristics and laboratory parameters in SLE patients with and without lupus nephritis (LN)

Age (y) mean±SD

26.6±5.1*

30.5±9.3

Gender (men/women) %

20/80*

0/100

Caucasian (W/N-W) %

30/70

33/67

Disease duration of SLE (months) mean±SD

30±26.3*

80.8±61.3

Mex-SLEDAI mean±SD

9.20±4.57*

0.07±0.38

Dipstick positive hematuria - (1+ to 4+), % (n)

100.0 (20)*

0.0 (0)

Dysmorphic erythrocyte, % (n)

70.0 (14)*

1.8 (1)

Erythrocyte, granular, fatty and waxy casts, % (n)

70.0 (14)*

7.4 (4)

Oval fat bodies, % (n)

80.0 (16)*

1.8 (1)

Erythrocytes sedimentation rate/HPF mean±SD

33.8±16.3*

1.9±1.7

Dipstick positive proteinuria (1+ to 4+), % (n)

100.0 (20)*

5.6 (3)

Pr/Cr ratio (mg/mg) mean±SD

4.89±4.30*

0.37±0.26

24-h Proteinuria (g/L) mean±SD

4.77±3.58*

0.23±0.20

Serum creatinine (μmol/L) mean±SD

140.42±73.70*

70.90±16.92

eGFR (mL/min) mean±SD

57.27±28.02*

95.22±23.94

Creatinine clearance (mL/min/1.73 m ² ) mean±SD

60.33±24.99*

92.68±22.97

Serum C3 (mg/L) mean±SD

62.83±42.40*

131.30±64.24

Serum C4 (mg/L) mean±SD

27.87±14.92*

44.48±18.38

Anti-dsDNA title mean±SD

98.95±50.54*

17.22±9.20