Table 1.

Attrition flow. Data are n (%).

CharacteristicAttrition Flow, n = 2313
Patients with SLE2313 (100.0)
LN ISN category III/IV/V520 (22.5)
At least 1 visit within 3 mos of biopsy date282 (12.2)
Age ≥ 18 yrs at biopsy date (Day 0)277 (12.0)
Sufficient data within Day 0 window275 (11.9)
Sufficient data within Month 24 window189 (8.2)
At least 1 visit made in followup period (after Month 24)181 (7.8)
No ESRD during Day 0 window176 (7.6)
No. patients selected for this analysis176
  • ESRD: endstage renal disease; ISN: International Society of Nephrology; LN: lupus nephritis; SLE: systemic lupus erythematosus.