Table 1.

Characteristics of Cohort at Initial Clinic Presentation

	No renal disease during follow-up N=19	Renal disease at Baseline N=14	Renal disease one year or more From Baseline N=14	p-value Comparing No renal disease to Renal disease at Baseline	p-value Comparing Renal disease at Baseline to Renal Disease one year or more from Baseline
Clinical Characteristics
Age, years (SD)	12.9 (3.4)	11.5 (3.4)	12.2 (4.4)	0.2	0.6
Gender, n (%) F	19 (100)	11 (78)	14 (100)	0.04	0.04
Hispanic, n (%)	0(0)	1(7)	1 (7)	0.7	0.4
Race, n (%) AA	14 (74)	9 (64)	9 (64)	0.6	0.2
Laboratory Parameters
ANA, n (%) positive	19 (100)	14 (100)	14 (100)	1	1
dsDNA, n (%) positive	13 (68)	12 (85)	8 (57)	0.3	0.2
Ro, n (%) positive	5/12 (40)	2/7 (29)	2/7 (29)	0.6	1
La, n (%) positive	1/7 (14)	2/7 (29)	1/7 (14)	0.7	0.6
RNP, n (%) positive	5/12 (40)	5/11 (45)	4/11 (36)	0.7	0.8
Sm, n (%) positive	1/7 (14)	7/12 (58)	4/10 (40)	0.03	0.4
Low C3, n (%)	47	64	64	0.3	0.9
Low C4, n (%)	56	71	63	0.4	0.7
Elevated ESR, n (%)	74	57	82	0.3	0.1
Low Hgb, n (%)	16 (84)	6 (42)	4 (28)	0.9	0.7
Low Albumin, n (%)	10 (52)	6 (42)	3 (21)	0.9	0.4
Active Urinary Sediment, n (%)	0 (0)	11 (78)	0 (14)	0.01	0.01
Isolated Sterile Pyuria, n (%)	0 (0)	0 (14)	0 (14)	1	1
Disease Activity Indices
Mean SLEDAI	13.1 ± 9.6	10.7 ±11.7	12.8 ± 14.2	0.6	0.4
Mean SLAM	6.1 ± 5.5	5.4 ± 3.1	5.1 ± 3.6	0.8	0.6