Lupus & antiphospholipid syndrome

Predictors of long-term renal survival and mortality in patients with proliferative and membranous lupus nephritis

LupusPublished Prospective cohort study

Authors' conclusion

Our study indicates that antiphospholipid antibodies, higher histologic activity and chronicity indices, and sustained high disease activity beyond renal items were independently associated with progression to ESRD. Mortality was increased among patients with ESRD and those with persistent high disease activity.

Study context

Population
Korean patients with biopsy-proven proliferative or membranous LN from a prospective cohort of 1497 patients with systemic lupus erythematosus (SLE)
Participants
599 patients
Exposure
Predictors of end-stage renal disease (ESRD) and mortality in proliferative and membranous LN
  • Proliferative LNn = 509
  • Membranous LNn = 90
Outcome
Progression to ESRD (renal survival) and mortality
Methodological detailsmultivariate logistic regression, biopsy-proven LN
  • Multivariate logistic regression
  • Biopsy-proven LN

Main finding

As reported in the abstract

Predictors of progression to ESRD (multivariate logistic regression)
Progressed to ESRD
42 (7.0%)
Died
31 (5.2%)
Antiphospholipid antibody positivity, OR
3.18, p = .023
Higher activity index at biopsy, OR
1.14, p = .034
Higher chronicity index at biopsy, OR
1.33, p = .042
Sustained high disease activity (extra-renal adjusted mean SLEDAI-2K ≥ 3), OR
4.33, p = .019

Observational data: associations, not effects.

Further findings

Renal response and ESRD risk

12-month treatment response: significant association
P < 0.001
6-month renal response: no association with ESRD risk

Renal survival by histologic indices

Poorer with activity index ≥6
P = 0.013
Poorer with chronicity index ≥4
P = 0.002

Overall survival / mortality

Worse overall survival in patients who developed ESRD
P = 0.028
Higher adjusted mean SLEDAI-2K, HR
1.43, p < .0001
Higher extra-renal adjusted mean SLEDAI-2K, HR
1.83, p < .0001

Original publication

Predictors of long-term renal survival and mortality in patients with proliferative and membranous lupus nephritis. Lupus. Published 7 January 2026. doi:10.1177/09612033261415978

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