Table 1.

Comparison of general information, and baseline clinical and laboratory variables. Values are mean ± SD unless otherwise specified.

Variables	Groups
Variables	NC	SC	C1	C2
No. patients	59	59	64	49
Sex, m/f	7/52	7/52	6/58	9/40
Age, yrs	36.34 ± 10.60	34.61 ± 12.13	33.97 ± 11.14	36.90 ± 12.69
Hemoglobin, g/l	100.26 ± 20.20	97.59 ± 21.72	97.89 ± 19.39	90.40 ± 16.73^{^a,^c}
WBC count,10⁹/l	4.54 ± 2.32	4.29 ± 1.97	4.76 ± 2.69	5.73 ± 3.05^b
Platelet count, 10⁹/l	141.79 ± 68.67	152.26 ± 76.00	142.57 ± 67.57	169.25 ± 74.69^c
Serum albumin, g/l	26.89 ± 6.28	28.90 ± 6.98	26.35 ± 6.65^b	24.52 ± 6.15^b
uPCR, g/g	4.08 ± 3.00	4.24 ± 2.82	5.54 ± 4.55	6.20 ± 3.42^{^a,^b}
SCr, mg/dl, median (IQR)	0.88 (0.70–1.32)	0.88 (0.67–1.40)	0.89 (0.72–1.37)	1.32 (0.85–2.27)^{^a,^b,^c}
C3, mg/dl, median (IQR)	32.90 (24.30–48.50)	37.15 (24.80–50.35)	37.80 (26.1–48.45)	43.25 (35.08–57.10)^{^a,^c}
C4, mg/dl, median (IQR)	5.60 (4.00–7.20)	6.00 (4.58–8.02)	6.30 (5.00–10.25)	8.30 (5.80–12.00)^{^a,^b}
Anti-dsDNA positive, %	54.4	71.2^a	62.9	63.0
Hypertension, %	55.3	47.7	50.0	67.7
Acute kidney injury, %	39.0	32.8	53.2^b	68.8^{^a,^b}
Nephrotic syndrome, %	55.2	46.6	58.1	77.1^{^a,^b,^c}

↵a p < 0.05 compared with NC group.
↵b p < 0.05 compared with SC group.
↵c p < 0.05 compared with C1 group. WBC: white blood cell; uPCR: urine protein creatinine ratio; SCr: serum creatinine; IQR: interquartile range; C3: complement factor 3; NC: noncrescent group; SC: segmental crescent group.