From: Urinary TWEAK as a biomarker of lupus nephritis: a multicenter cohort study
 | AECOM cohort | OSS cohort | Pvalue |
---|---|---|---|
Number of patients (% female) | 31 (81) | 13 (100) | 0.091 |
Lupus nephritis (%) | 58 | 100 | 0.005* |
Number of visits per patient | 3 (2 to 5) | 3 (2 to 5) | 0.508 |
Time between visits (months) | 3 (2 to 6) | 2 (2 to 6) | Â |
Ethnicitya | 18/12/0/1 | 5/0/8/0 | Â |
African American (%) | 58 | 38 | 0.235 |
Age at first visit (years) | 36 (31 to 44) | 30 (28 to 36) | 0.089 |
rSLEDAIb | 4 (0 to 8) | 4 (0 to 4) | Â |
World Health Organization classb, n (%) | Â | Â | Â |
   III | 6 (33) | 1 (8) | 0.092 |
   IV | 9 (50) | 9 (69) | 0.284 |
   V | 2 (11) | 3 (23) | 0.371 |
   VI | 1 (6) | 0 (0) | 0.388 |
Serum creatinine levels | 0.8 (0.7 to 1.0) | 1.0 (0.8 to 1.6) | Â |
   Only lupus nephritis patients | 0.9 (0.7 to 1.1) |  |  |
   At first visitb | 0.8 (0.7 to 1.2) | 1.03 (0.8 to 1.5) | 0.160 |